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Reversing Nearness


The Reversing Nearness contest has ended. Congratulations to our winners:

Position Winner Prize
1st Tomas Rokicki Palo Alto, California, United States Choice of a crystal plaque or any item from Bathsheba Sculpture.
2nd Martin Piotte Montreal, Quebec, Canada Choice of a crystal plaque or almost any item from Bathsheba Sculpture.


These are the contestants who submitted the best solution for each problem. (Problems for which the best solution was found during the first 48 hours of the contest are omitted.)

Problem Score Solver Date Achieved
14 × 14 5457848 Tomas Rokicki Palo Alto, California, United States 29 Jul 2019 20:37
Gil Dogon Jerusalem, Israel 31 Jul 2019 07:34
Oleg Vlasii Ivano-Frankivsk, Ukraine 31 Jul 2019 09:08
Dmitry Kamenetsky Adelaide, Australia 1 Aug 2019 02:06
Mark Mammel Ellicott City, Maryland, United States 1 Aug 2019 12:08
Nicholas Jimsheleishvili San Francisco, California, United States 4 Aug 2019 12:34
Anders Kaseorg San Francisco, California, United States 5 Aug 2019 01:45
Johan Roos Lund, Sweden 5 Aug 2019 10:44
Jeremy Sawicki Menlo Park, California, United States 6 Aug 2019 05:18
Wes Sampson La Jolla, California, United States 7 Aug 2019 13:26
John Morris Simi Valley, California, United States 7 Aug 2019 14:27
Kenneth Ulrich Rydebäck, Sweden 8 Aug 2019 08:16
Fumi Yura Akihabara, Japan 9 Aug 2019 04:30
Kay Schönberger Koblenz, Germany 10 Aug 2019 07:46
Bert Dobbelaere Melsele, Belgium 11 Aug 2019 05:48
Klaus Müller Koblenz, Germany 12 Aug 2019 17:47
Herbert Kociemba Darmstadt, Germany 14 Aug 2019 23:19
Tim Price Market Lavington, England, United Kingdom 16 Aug 2019 09:10
Rick Hennig Denver, Colorado, United States 16 Aug 2019 10:41
Sergiy Lychko Kyiv, Ukraine 17 Aug 2019 09:24
Tom Sirgedas Okemos, Michigan, United States 17 Aug 2019 20:31
Ralf Bonse Dortmund, Germany 18 Aug 2019 07:18
Lionel Lemarie San Mateo, California, United States 22 Aug 2019 01:21
Martin Piotte Montreal, Quebec, Canada 23 Aug 2019 00:04
Wolfram Hinderer Ostfildern, Germany 23 Aug 2019 06:12
Michael Steinau Sierksdorf, Germany 24 Aug 2019 06:34
Joao da Silva Zurich, Switzerland 25 Aug 2019 19:04
Ed Mertensotto Lone Tree, Colorado, United States 26 Aug 2019 15:44
Vlad Shcherbina Dubna, Russia 26 Aug 2019 19:24
Roy van Rijn Maassluis, Netherlands 28 Aug 2019 05:34
Justin Fletcher Adelaide, Australia 28 Aug 2019 05:54
Jonathan Hogg Cupertino, California, United States 30 Aug 2019 13:27
Eckard Specht Magdeburg, Germany 3 Sep 2019 05:40
Siegbert Steinlechner Leonberg, Germany 4 Sep 2019 18:43
Niels Gasper Waltrop, Germany 4 Sep 2019 21:02
Chuck Grant Livermore, California, United States 6 Sep 2019 00:22
Hans-Bernhard Meyer Au, Germany 9 Sep 2019 08:25
Mark Beyleveld Sugar Land, Texas, United States 15 Sep 2019 13:54
Mikhail Markeyev Omsk, Russia 16 Sep 2019 02:56
Helge Keller Karlsruhe, Germany 18 Sep 2019 16:23
Fulvio Baccaglini New Malden, England, United Kingdom 25 Sep 2019 08:48
Walter Trump Nuremberg, Germany 27 Sep 2019 09:38
Michael V. Fondern Ense, Germany 2 Oct 2019 21:23
Martin Gårdrup Staffanstorp, Sweden 6 Oct 2019 14:45
Fábio Pakk Selmi-Dei Zürich, Switzerland 7 Oct 2019 07:58
Hans-Werner Paulsen Miesbach, Germany 15 Oct 2019 19:39
Roland Postle Manchester, United Kingdom 20 Oct 2019 17:52
Valery Claudepierre Dijon, France 24 Oct 2019 11:15
Arch D. Robison Champaign, Illinois, United States 25 Oct 2019 00:20
Stefan Schwarz Gifhorn, Germany 25 Oct 2019 12:20
18 × 18 40901354 Johan Roos Lund, Sweden 1 Aug 2019 19:11
Tomas Rokicki Palo Alto, California, United States 3 Aug 2019 04:50
Mark Mammel Ellicott City, Maryland, United States 3 Aug 2019 16:40
Dmitry Kamenetsky Adelaide, Australia 5 Aug 2019 00:30
Anders Kaseorg San Francisco, California, United States 10 Aug 2019 12:12
Tom Sirgedas Okemos, Michigan, United States 11 Aug 2019 20:36
Jeremy Sawicki Menlo Park, California, United States 12 Aug 2019 08:56
Fumi Yura Akihabara, Japan 15 Aug 2019 02:38
Joao da Silva Zurich, Switzerland 26 Aug 2019 21:08
John Morris Simi Valley, California, United States 27 Aug 2019 18:19
Martin Piotte Montreal, Quebec, Canada 29 Aug 2019 02:30
Niels Gasper Waltrop, Germany 15 Sep 2019 10:18
Kay Schönberger Koblenz, Germany 28 Sep 2019 20:57
Aleksandrs Saraks Riga, Latvia 29 Sep 2019 20:10
Mark Beyleveld Sugar Land, Texas, United States 7 Oct 2019 00:12
Hans-Bernhard Meyer Au, Germany 7 Oct 2019 07:25
Rick Hennig Denver, Colorado, United States 18 Oct 2019 20:13
Hans-Werner Paulsen Miesbach, Germany 23 Oct 2019 17:38
Ed Mertensotto Lone Tree, Colorado, United States 25 Oct 2019 01:29
19 × 19 61784724 Mark Mammel Ellicott City, Maryland, United States 3 Aug 2019 11:23
Dmitry Kamenetsky Adelaide, Australia 5 Aug 2019 00:31
Tomas Rokicki Palo Alto, California, United States 5 Aug 2019 05:34
Johan Roos Lund, Sweden 6 Aug 2019 15:25
Oleg Vlasii Ivano-Frankivsk, Ukraine 7 Aug 2019 05:14
John Morris Simi Valley, California, United States 8 Aug 2019 17:08
Jeremy Sawicki Menlo Park, California, United States 15 Aug 2019 22:16
Mikhail Tikhomirov Moscow, Russia 16 Aug 2019 20:30
Tom Sirgedas Okemos, Michigan, United States 18 Aug 2019 03:03
Wolfram Hinderer Ostfildern, Germany 26 Aug 2019 20:33
Joao da Silva Zurich, Switzerland 26 Aug 2019 21:08
Helge Keller Karlsruhe, Germany 27 Aug 2019 11:58
Martin Piotte Montreal, Quebec, Canada 29 Aug 2019 00:40
Ralf Bonse Dortmund, Germany 7 Sep 2019 18:03
Roy van Rijn Maassluis, Netherlands 9 Sep 2019 12:09
Eckard Specht Magdeburg, Germany 12 Sep 2019 09:31
Niels Gasper Waltrop, Germany 15 Sep 2019 22:27
Rick Hennig Denver, Colorado, United States 21 Sep 2019 12:17
Herbert Kociemba Darmstadt, Germany 21 Sep 2019 15:26
Kenneth Ulrich Rydebäck, Sweden 24 Sep 2019 13:36
Kay Schönberger Koblenz, Germany 28 Sep 2019 20:57
Hans-Bernhard Meyer Au, Germany 7 Oct 2019 07:22
Mark Beyleveld Sugar Land, Texas, United States 8 Oct 2019 13:17
Lionel Lemarie San Mateo, California, United States 10 Oct 2019 04:03
Hans-Werner Paulsen Miesbach, Germany 16 Oct 2019 15:32
20 × 20 95115180 Tomas Rokicki Palo Alto, California, United States 11 Aug 2019 14:09
Johan Roos Lund, Sweden 21 Aug 2019 14:48
Tom Sirgedas Okemos, Michigan, United States 24 Aug 2019 07:10
Jeremy Sawicki Menlo Park, California, United States 28 Aug 2019 23:38
Martin Piotte Montreal, Quebec, Canada 29 Aug 2019 21:07
Dmitry Kamenetsky Adelaide, Australia 30 Aug 2019 00:01
Oleg Vlasii Ivano-Frankivsk, Ukraine 30 Aug 2019 20:13
Rick Hennig Denver, Colorado, United States 20 Sep 2019 01:44
John Morris Simi Valley, California, United States 1 Oct 2019 14:11
Kay Schönberger Koblenz, Germany 4 Oct 2019 20:21
Mark Beyleveld Sugar Land, Texas, United States 8 Oct 2019 18:13
Hans-Bernhard Meyer Au, Germany 23 Oct 2019 07:08
Hans-Werner Paulsen Miesbach, Germany 23 Oct 2019 16:54
21 × 21 138133813 Oleg Vlasii Ivano-Frankivsk, Ukraine 14 Aug 2019 20:09
Dmitry Kamenetsky Adelaide, Australia 15 Aug 2019 00:57
Tomas Rokicki Palo Alto, California, United States 15 Aug 2019 23:04
Martin Piotte Montreal, Quebec, Canada 30 Aug 2019 01:49
Johan Roos Lund, Sweden 31 Aug 2019 12:21
Jeremy Sawicki Menlo Park, California, United States 3 Sep 2019 09:40
John Morris Simi Valley, California, United States 22 Sep 2019 23:29
Fumi Yura Akihabara, Japan 24 Oct 2019 05:36
22 × 22 203877974 Tomas Rokicki Palo Alto, California, United States 13 Aug 2019 16:12
John Morris Simi Valley, California, United States 17 Aug 2019 18:03
Dmitry Kamenetsky Adelaide, Australia 28 Aug 2019 05:54
Martin Piotte Montreal, Quebec, Canada 29 Aug 2019 21:07
Jeremy Sawicki Menlo Park, California, United States 3 Sep 2019 14:58
Johan Roos Lund, Sweden 5 Sep 2019 05:09
Kay Schönberger Koblenz, Germany 3 Oct 2019 18:01
Wolfram Hinderer Ostfildern, Germany 15 Oct 2019 19:39
Hans-Werner Paulsen Miesbach, Germany 23 Oct 2019 17:21
23 × 23 286960950 Tomas Rokicki Palo Alto, California, United States 23 Aug 2019 18:15
Johan Roos Lund, Sweden 24 Aug 2019 17:16
Martin Piotte Montreal, Quebec, Canada 30 Aug 2019 02:35
Oleg Vlasii Ivano-Frankivsk, Ukraine 30 Aug 2019 21:01
John Morris Simi Valley, California, United States 9 Oct 2019 04:43
Hans-Werner Paulsen Miesbach, Germany 24 Oct 2019 06:00
24 × 24 409173438 Tomas Rokicki Palo Alto, California, United States 20 Aug 2019 03:01
Martin Piotte Montreal, Quebec, Canada 29 Aug 2019 21:07
Oleg Vlasii Ivano-Frankivsk, Ukraine 31 Aug 2019 20:29
Johan Roos Lund, Sweden 4 Sep 2019 04:24
John Morris Simi Valley, California, United States 12 Sep 2019 17:15
Hans-Werner Paulsen Miesbach, Germany 24 Oct 2019 11:34
25 × 25 560363762 Tomas Rokicki Palo Alto, California, United States 20 Aug 2019 05:00
Tom Sirgedas Okemos, Michigan, United States 25 Aug 2019 23:18
Martin Piotte Montreal, Quebec, Canada 31 Aug 2019 10:30
Johan Roos Lund, Sweden 10 Sep 2019 18:53
26 × 26 776271362 Tomas Rokicki Palo Alto, California, United States 24 Aug 2019 03:49
Martin Piotte Montreal, Quebec, Canada 30 Aug 2019 01:49
Johan Roos Lund, Sweden 22 Sep 2019 03:25
Hans-Werner Paulsen Miesbach, Germany 25 Oct 2019 19:01
27 × 27 1039341134 Tomas Rokicki Palo Alto, California, United States 16 Aug 2019 04:34
Johan Roos Lund, Sweden 26 Aug 2019 15:06
Martin Piotte Montreal, Quebec, Canada 29 Aug 2019 21:07
Oleg Vlasii Ivano-Frankivsk, Ukraine 2 Sep 2019 11:37
Hans-Werner Paulsen Miesbach, Germany 24 Oct 2019 14:31
28 × 28 1404785310 Tomas Rokicki Palo Alto, California, United States 25 Aug 2019 14:52
Martin Piotte Montreal, Quebec, Canada 31 Aug 2019 10:30
29 × 29 1843328926 Tomas Rokicki Palo Alto, California, United States 28 Aug 2019 05:15
Martin Piotte Montreal, Quebec, Canada 30 Aug 2019 10:24
30 × 30 2439441116 Tomas Rokicki Palo Alto, California, United States 24 Aug 2019 00:23
Martin Piotte Montreal, Quebec, Canada 31 Aug 2019 10:30
Oleg Vlasii Ivano-Frankivsk, Ukraine 14 Sep 2019 07:21
Hans-Werner Paulsen Miesbach, Germany 25 Oct 2019 19:36


These are the best solutions received for each problem in the contest:

Problem Score Solution
6 × 6 5526 (AA, AB, AE, BA, BD, BE), (CB, DB, DE, BB, EB, CE), (FB, FC, EE, EF, EC, FE), (CF, AC, AF, BF, BC, FF), (CA, DC, DF, DA, CC, CD), (FA, DD, AD, EA, ED, FD)
7 × 7 17779 (AA, AB, AE, BA, BB, FE, DE), (DB, EB, BE, BF, CB, CE, CF), (GB, EC, EF, FF, FB, CC, DF), (GG, AC, AF, FG, FC, GC, GF), (AG, DC, BD, BG, BC, CD, CG), (DA, DD, ED, EG, CA, FD, DG), (GA, AD, EE, EA, FA, GD, GE)
8 × 8 57152 (AA, AB, AE, AF, BA, BB, BE, BF), (DA, DB, DE, DF, CA, CB, CE, CF), (EA, EB, EE, EF, FA, FB, FE, FF), (HA, HB, HE, HF, GA, GB, GE, GF), (AH, AC, AD, AG, BH, BC, BD, BG), (DH, DC, DD, DG, CH, CC, CD, CG), (EH, EC, ED, EG, FH, FC, FD, FG), (HH, HC, HD, HG, GH, GC, GD, GG)
9 × 9 144459 (AA, AB, AE, AF, BA, HB, IB, IF, IG), (BB, BC, BF, BG, CF, CB, CC, DF, AG), (EB, EC, FG, CG, CH, DB, DC, DG, EG), (FH, FC, FD, GG, GH, GB, GC, HG, EH), (II, AC, GD, HH, HI, HC, HD, IC, IH), (AI, AD, BD, BH, BI, CD, ID, IE, AH), (DI, ED, BE, CE, CI, CA, DD, DE, DH), (EA, FI, FE, FF, GI, DA, EE, EF, EI), (FA, FB, GE, GF, GA, HA, HE, HF, IA)
10 × 10 362950 (AA, AB, AC, AG, BG, BB, CB, CF, CG, JG), (EB, FB, BC, FG, BH, CH, CC, DB, DG, DH), (EI, EC, FC, FH, GH, GB, GC, DC, EG, EH), (FI, JC, FD, GD, GI, HH, HC, HD, IH, JH), (JI, JD, AD, AH, AI, HI, IC, ID, IE, II), (JJ, AJ, AE, BD, BI, BJ, CD, DD, JE, DI), (EJ, ED, EE, BE, CI, CJ, CA, CE, DE, DJ), (EA, FJ, FE, FF, GJ, HJ, DA, HE, DF, EF), (IA, FA, GE, GF, GG, GA, HA, HF, IF, IJ), (JA, JB, AF, BF, HG, BA, HB, IB, IG, JF)
11 × 11 740798 (AA, AB, AC, BF, BH, CH, BB, CB, CG, DH, KG), (EA, EB, FB, FG, BG, BA, CA, DB, CF, DG, EH), (EK, FA, GB, FF, GG, GK, GA, DA, DF, EF, EG), (JA, FK, GE, GF, HG, HK, HA, IA, IF, IG, JG), (KK, KA, KE, AF, HF, IJ, IK, HE, IE, JF, JK), (KJ, AK, AD, AE, AJ, BK, CK, CE, JE, KF, JJ), (DK, ED, BD, BE, BI, BJ, CJ, CD, DE, EE, DJ), (EJ, EC, FD, FE, GJ, CI, CC, DC, DD, DI, EI), (FJ, FC, GD, FH, GI, HJ, HC, HD, ID, II, FI), (KI, KC, GC, GH, HH, HI, HB, IC, JD, IH, JI), (JB, KB, KD, AG, AH, AI, BC, IB, JC, JH, KH)
12 × 12 1585264 (AA, AB, AC, AH, BH, BI, BB, BC, CC, CH, DI, LI), (EB, EC, FC, FH, BG, CI, CA, CB, DC, CG, DH, EI), (EA, FB, GB, FG, GH, HH, HB, DA, DB, DG, EG, EH), (GL, FA, GA, GF, GG, HG, HA, IA, IB, IG, IH, JH), (KA, LA, KE, LG, HF, HL, IL, JA, IF, JG, KG, JK), (KL, LL, LE, LF, AG, AK, BA, JL, JE, JF, KF, KK), (LK, AL, AE, AF, BF, BK, BL, CL, CE, CF, DF, DK), (EL, FL, FE, FF, BE, CJ, CK, DL, CD, DE, EF, EK), (FK, ED, FD, GE, GJ, GK, HK, BD, DD, EE, DJ, EJ), (FJ, GC, GD, HE, GI, HJ, IK, HC, HD, IE, JJ, FI), (LJ, KC, LD, AD, HI, II, IJ, IC, ID, JD, JI, KJ), (KB, LB, LC, LH, AI, AJ, BJ, JB, JC, KD, KH, KI)
13 × 13 2888120 (AA, AB, AF, BG, BH, BM, CA, DA, KF, MF, LG, MG, MM), (AM, BA, BF, CG, CH, BL, CM, DM, DF, DG, EG, EM, AL), (GM, GF, GG, CE, CF, CL, DL, EA, DE, EF, FG, EK, FM), (HM, GD, GE, HF, HK, IL, IM, EL, EE, FE, FF, FL, GL), (HL, HD, HE, IF, IJ, IK, JL, JE, KE, JF, LF, FK, GK), (ML, ME, ID, IE, JJ, JK, KL, JD, KD, LE, KJ, LK, LL), (MD, AD, AE, BE, BK, CK, KK, KC, LC, LD, LJ, MJ, MK), (MC, AC, BD, AI, BJ, CJ, DK, CC, CD, ED, MI, AJ, AK), (FC, BB, BC, BI, CI, DJ, CB, DC, DD, FD, EI, EJ, FJ), (FB, GC, HC, HI, HJ, DI, DB, EB, EC, DH, FH, FI, GJ), (GB, HB, IC, HH, II, JI, IA, IB, JC, EH, GH, GI, FA), (GA, HA, HG, IG, IH, JH, JA, JB, KB, KH, KI, LI, LA), (MA, MB, AG, AH, JG, JM, KM, KA, LB, KG, LH, MH, LM)
14 × 14 5457848 (AA, AB, AC, AH, BI, BJ, CJ, CB, CC, DC, CH, DI, DJ, FJ), (FB, FC, GC, GI, BH, CI, BA, CA, DB, EC, DH, EI, EJ, EA), (FA, GB, HB, GH, HH, HI, HA, IB, DA, EB, FG, EH, FI, EN), (GN, GA, GG, HG, IH, II, HN, IA, JA, JG, JH, KH, FH, FN), (LA, MA, HF, IF, IG, JI, IN, JN, KA, JF, KG, LH, MH, LN), (MN, NA, ME, NG, NH, AN, JM, KM, KN, KF, LG, MG, LM, MM), (NM, NN, NF, AF, AG, AL, AM, BN, CN, CG, LF, MF, LL, ML), (NL, NE, AE, BF, BG, BL, BM, CM, CE, CF, DG, EG, DM, EM), (FM, FE, FF, GF, BE, CK, CL, DN, CD, DE, DF, EF, DL, EL), (GM, FD, GE, HE, GJ, HL, HM, IM, DD, ED, EE, DK, EK, FL), (GL, GD, HD, IE, HJ, HK, IL, JL, JD, JE, KE, KK, FK, GK), (LC, MD, HC, ID, IJ, IK, JK, IC, JC, KD, LE, KJ, LK, KL), (LB, MC, ND, AD, NJ, AK, JJ, JB, KB, KC, LD, LI, LJ, MK), (MB, NB, NC, NI, AI, AJ, BK, BB, BC, BD, KI, MI, MJ, NK)
15 × 15 9164700 (AA, AB, AC, AD, BI, BJ, BK, CA, CB, CC, CD, DI, DJ, OJ, OK), (FB, FC, BC, BD, CI, CJ, CK, CL, DB, DC, DD, EI, EJ, EK, EL), (GB, GC, GD, GE, HJ, HK, DK, DL, EB, EC, ED, EE, FJ, FK, FL), (GM, HC, HD, HE, IJ, IK, IL, IM, JC, JD, FD, FE, GJ, GK, GL), (HM, IC, ID, IE, IF, JK, JL, JM, KC, KD, KE, KF, LK, LL, HL), (MN, ND, NE, JE, JF, KK, KL, KM, KN, LD, LE, LF, MK, ML, MM), (NN, OD, OE, OF, OG, AL, AM, LM, LN, MD, ME, MF, MG, NL, NM), (ON, OO, AE, AF, AG, BL, BM, BN, BO, CE, CF, NF, NG, OL, OM), (AN, AO, BE, BF, BG, BH, CM, CN, CO, DE, DF, DG, DH, EM, EN), (FO, FA, GF, GG, CG, CH, DM, DN, DO, DA, EF, EG, EH, FM, FN), (GO, GA, HF, HG, HH, HI, IN, IO, EO, EA, FF, FG, FH, FI, GN), (HO, HA, HB, IG, IH, II, JN, JO, JA, JB, KG, KH, GH, GI, HN), (MA, IA, IB, JG, JH, JI, JJ, KO, KA, KB, LG, LH, LI, LJ, MO), (NA, NB, NC, OH, OI, KI, KJ, LO, LA, LB, LC, MH, MI, MJ, NO), (OA, OB, OC, AH, AI, AJ, AK, BA, BB, MB, MC, NH, NI, NJ, NK)
16 × 16 15891088 (AA, AB, AC, AI, AJ, BJ, CL, BA, CB, CC, DC, DJ, DK, EK, FK, PA), (GB, FC, GC, BI, CI, CJ, CK, CA, DA, DB, EC, DI, EJ, FJ, GK, FB), (GA, HB, GH, HI, HJ, IJ, IP, DP, EA, EB, DH, EI, FI, GJ, EP, FA), (HA, IB, HG, HH, II, JJ, IO, JA, JB, KB, KH, EH, FH, GI, FP, GP), (HP, IA, IG, IH, JI, KJ, JP, KP, KA, LA, KG, LH, LI, NI, MP, HO), (NA, OA, OH, JG, JH, KI, JO, KO, LP, MA, LG, MH, MI, OI, MO, NP), (OP, OG, PG, PH, AH, AO, AP, LN, LO, LF, MF, MG, NH, MN, NO, OO), (PP, OF, PF, AG, BH, AN, BO, BP, CP, CG, CH, NF, NG, NN, ON, PO), (PN, PE, AE, AF, BG, AM, BN, CO, DO, CE, CF, DG, EG, EN, EO, PM), (GO, GF, GG, BE, BF, BM, CM, CN, DN, DE, DF, EF, FG, EM, FN, FO), (FD, GE, HF, IF, HL, IM, IN, DM, DD, ED, EE, FF, DL, FL, FM, GN), (GD, HD, HE, IE, HK, IL, JM, JN, JD, KE, KF, FE, EL, GL, GM, HN), (HC, IC, ID, JF, IK, JL, KM, KN, JC, KD, LE, ME, LL, MM, NM, HM), (NC, ND, OE, JE, JK, KK, KL, LM, KC, LD, MD, NE, LK, ML, NL, OM), (OC, OD, PD, PJ, PK, PL, AL, LB, MB, LC, MC, LJ, MK, NK, OL, NB), (PB, PC, AD, PI, AK, BK, BL, BB, BC, BD, CD, MJ, NJ, OJ, OK, OB)
17 × 17 25152826 (AA, AB, AC, AJ, BJ, BK, CL, BA, CB, DC, DD, DJ, DK, EK, EL, GL, FC), (GB, GC, IC, HK, CI, CJ, CK, CA, DA, DB, EC, DI, EJ, FK, FL, FA, FB), (HB, HC, HI, HJ, IJ, IK, KK, JB, EQ, EA, EB, EI, FI, FJ, GK, FQ, GA), (HA, IB, HH, II, JJ, JK, JQ, JA, KA, KB, MB, LJ, GH, GI, GJ, GQ, HQ), (IQ, IA, IH, JH, JI, KJ, JP, KQ, LA, LB, LH, LI, MI, MJ, OJ, NA, IP), (OA, QA, PI, KG, KH, KI, KP, LP, LQ, MA, LG, MH, NI, NJ, NP, NQ, OQ), (PA, PG, PH, QH, QI, BI, AQ, MO, MP, MQ, MG, NG, NH, OI, NO, OP, PQ), (QQ, PF, QG, AH, AI, AO, AP, BP, BQ, DQ, CH, OF, OG, OH, OO, PO, PP), (QP, QF, AF, AG, BH, AN, BO, CP, CQ, CF, CG, DG, DH, FH, EP, QN, QO), (HP, GG, BE, BF, BG, BN, CN, CO, DP, CE, DF, EG, EH, EN, EO, FO, FP), (GE, GF, HF, HG, JG, IO, DM, DN, DO, DE, EE, EF, FG, EM, FN, GO, GP), (GD, HE, IF, IG, IM, IN, JN, JO, LO, KF, FD, FE, FF, FM, GM, GN, HO), (HD, ID, IE, JF, IL, JM, KN, KO, KD, KE, LE, LF, NF, MN, HL, HM, HN), (OE, JC, JD, JE, JL, KL, KM, LN, KC, LD, ME, MF, ML, MM, NM, NN, PN), (OD, PD, PE, AE, QM, LK, LL, LM, LC, MC, MD, NE, MK, NL, OM, ON, OC), (PC, QD, QE, QK, QL, AL, AM, CM, BD, NB, NC, ND, NK, OK, OL, PM, OB), (QB, QC, AD, QJ, AK, BL, BM, BB, BC, CC, CD, ED, DL, PJ, PK, PL, PB)
18 × 18 40901354 (AA, AB, AC, AH, BK, NI, NJ, OK, NR, OR, PA, QB, OI, QJ, QK, RK, AL, RA), (AR, BA, BB, BI, BJ, CK, DK, EK, DA, PR, QR, QA, PI, QI, RJ, AJ, AK, RR), (BR, CA, CB, BH, CI, CJ, DJ, DQ, DR, EA, FA, EB, FJ, RH, RI, AI, RQ, AQ), (CQ, CR, DB, CH, DH, DI, EJ, DP, EQ, ER, GA, HA, FH, FI, GJ, HJ, HQ, BQ), (JR, IA, JH, DG, EG, EH, EI, EP, FQ, FR, GR, FG, GH, GI, HI, IJ, HP, IR), (JQ, KR, JG, KH, KI, LI, MI, FP, GP, GQ, HR, GG, HG, HH, II, JI, IP, IQ), (KQ, LR, JF, KG, LH, MH, LO, MP, MQ, NQ, MR, HF, IF, IG, IH, HO, JO, JP), (LP, LQ, KF, LG, MG, NH, LN, MO, NP, OQ, PQ, NF, OG, OH, PH, IO, KO, KP), (QQ, LE, ME, LF, MF, NG, MN, NO, OP, PP, NE, OF, PF, PG, QH, QO, QP, RP), (AP, RD, AF, AG, BG, CG, NN, ON, OO, PO, OE, PE, QF, QG, RG, QN, RO, AO), (BP, AE, BE, BF, CF, BL, CN, CO, DO, PN, PD, QD, QE, RF, PM, RN, AN, BO), (CP, AD, BD, CE, DF, CM, DM, DN, EO, FO, ED, EE, FF, RE, QM, RM, AM, BN), (BC, CC, CD, DD, DE, CL, EM, EN, FN, EC, FD, FE, GE, GF, GM, GN, HN, BM), (IC, JD, JE, DC, EF, DL, EL, FM, GO, FB, FC, GD, HE, IE, GL, HM, IN, JN), (IB, JC, KD, KE, KK, KL, LM, FK, FL, GB, GC, HC, HD, GK, HL, IL, IM, KN), (JB, KB, KC, LD, KJ, LL, ML, MM, OM, NC, ND, HB, ID, HK, IK, JL, JM, KM), (KA, LB, LC, MD, LK, MK, NL, NM, MA, NB, OB, OC, OD, OJ, PL, JJ, JK, JA), (RC, LA, MB, MC, LJ, MJ, NK, OL, NA, OA, PB, PC, QC, PJ, PK, QL, RL, RB)
19 × 19 61784724 (AA, AB, AC, BC, AK, BK, BL, CL, DM, CA, DC, EC, ED, FD, EK, EL, FM, SL, SA), (HB, HC, BA, BB, BJ, CJ, CK, DL, EM, DA, DB, EB, FC, EJ, FK, FL, GL, GM, GA), (HA, IB, IC, JC, JK, JL, DJ, DK, DS, ES, EA, FB, GC, FI, FJ, GK, HL, HM, GS), (IA, JA, JB, II, JJ, KK, KL, LL, LA, LB, FS, FA, GB, GI, GJ, HJ, HK, IL, HS), (IS, JS, KB, JI, KJ, LJ, LK, MK, LS, MS, MA, MB, NB, NJ, HI, IJ, IK, HR, IR), (KR, KS, KA, JH, KI, LI, MJ, NK, LR, MR, NS, NA, NH, NI, OJ, OK, PK, PR, JR), (QS, QA, RA, KH, LH, MH, MI, LQ, MQ, NR, OS, OA, NG, OI, PI, PJ, QJ, PQ, QR), (RS, SS, RG, SI, AI, SJ, AJ, BS, NQ, OQ, OR, PA, OG, OH, PH, QI, RJ, QQ, RR), (SR, AS, SG, SH, AH, BI, CI, BQ, BR, CR, CS, PS, PG, QG, QH, RI, PP, RQ, SQ), (AQ, AR, SF, AG, BH, CH, DI, BP, CQ, DR, ER, DG, DH, EH, EI, RH, QP, RP, SP), (AP, RF, AF, BF, BG, CG, AO, CP, DP, DQ, EQ, DF, EG, FG, FH, GH, FP, GQ, GR), (IQ, HE, IG, IH, CE, CF, BO, CO, DO, EP, FR, DE, EF, FF, GG, HH, FO, GP, HQ), (JQ, HD, IF, JG, KG, LG, KP, KQ, EN, EO, FQ, EE, FE, GF, HG, FN, GO, HP, IP), (JP, IE, JE, JF, KF, MG, KO, LO, LP, MP, OP, MF, GD, GE, HF, GN, HN, HO, IO), (JO, ID, JD, KE, LF, JM, KN, LN, MO, NP, MD, ME, NF, OF, PF, ON, IM, IN, JN), (QC, KC, KD, LD, LE, KM, LM, MN, NN, NO, MC, ND, NE, OE, QF, OM, PN, PO, QO), (QB, RD, RE, SE, LC, ML, NL, MM, NM, OO, NC, OC, OD, PE, OL, PM, QN, RN, RO), (RB, RC, SD, AE, BE, AM, AN, BN, CN, OB, PB, PC, PD, QE, PL, QL, QM, RM, SO), (SB, SC, AD, BD, SK, AL, BM, CM, DN, CB, CC, CD, DD, QD, QK, RK, RL, SM, SN)
20 × 20 95115180 (AA, AB, AC, AJ, BL, OJ, PJ, PK, OT, PT, QT, QA, RB, QJ, RK, SK, SL, TL, ST, TA), (AT, BB, CB, AI, BJ, BK, CL, DL, DA, RS, RT, RA, SB, QI, RJ, SJ, TK, AM, SS, TT), (BT, BA, CA, BI, CJ, CK, DK, EL, DT, ET, EA, EB, GA, RI, SI, TI, TJ, AL, TS, AS), (BS, CT, DB, CH, CI, DJ, EK, FK, DS, ES, FT, FA, FH, FI, GJ, GK, HK, AK, BR, CR), (JT, CS, BH, DH, DI, EI, EJ, DR, ER, FS, GT, HA, FG, GH, GI, HJ, IJ, HQ, IS, IT), (KT, LT, KH, KI, LJ, EH, FJ, FQ, FR, GR, GS, HT, GG, HH, HI, II, JJ, IQ, IR, JS), (KS, MT, KG, LH, LI, MI, MJ, MQ, NS, GQ, HR, HS, HG, IG, IH, JI, KJ, JQ, JR, KR), (LS, MS, LG, MG, MH, NI, OI, NQ, NR, OR, OS, QS, PH, JF, JG, JH, IP, JP, KQ, LR), (MR, KF, LF, MF, NG, NH, MP, NP, OQ, PR, PS, OE, PG, QH, PI, RH, RQ, KP, LP, LQ), (AR, ME, NE, NF, OG, OH, NO, OP, PP, PQ, QR, PF, QF, QG, RG, SH, RP, SQ, SR, TR), (BQ, TE, AG, BG, AH, OF, OO, PO, QO, QQ, RR, PE, QE, RF, SG, TH, RO, SP, TQ, AQ), (TD, AE, AF, BF, CG, DG, CO, CP, CQ, DQ, QP, RD, RE, SE, SF, TG, SO, TO, TP, AP), (AD, BD, BE, CF, DF, BM, CN, DO, DP, EQ, EE, EF, FF, SD, TF, RN, SN, TN, AO, BP), (BC, CC, CD, CE, EG, CM, DN, EO, EP, FP, ED, FE, GE, GF, HF, GN, HO, AN, BN, BO), (JD, JE, DC, DD, DE, DM, EM, EN, FO, GP, EC, FD, GD, HE, IF, GM, HN, IO, HP, KO), (JC, KD, KE, LE, LM, LN, FL, FM, FN, GO, FC, GC, HD, IE, GL, HM, IN, JN, JO, IB), (JB, KC, LD, MD, LL, MM, MN, MO, ON, FB, GB, HB, HC, ID, HL, IL, IM, JM, KN, IA), (KB, LC, MC, ND, LK, ML, NM, NN, PN, NA, OC, OD, PD, IC, IK, JK, JL, KM, LO, JA), (LA, LB, MB, NC, MK, NK, NL, OM, PM, OA, OB, PC, QC, QD, QL, QM, QN, KK, KL, KA), (TB, TC, MA, NB, NJ, OK, OL, PL, NT, PA, PB, QB, RC, SC, QK, RL, RM, SM, TM, SA)
21 × 21 138133813 (AA, AB, AC, AK, AL, BL, BM, CM, DN, CA, CB, DB, EC, FD, DK, EL, FM, FN, GN, GB, GC), (HC, IC, JC, IK, BK, CK, CL, DM, CU, DU, DA, EB, FC, GD, EK, FL, GL, GM, HN, GA, HB), (IB, JB, KC, IJ, JL, JM, KM, LM, LB, EU, EA, FA, FB, EJ, FK, GK, HL, HM, IN, GU, HA), (JA, KB, II, JJ, JK, KL, LL, MM, LU, LA, MB, NB, FU, FJ, GJ, HJ, HK, IM, GT, HU, IA), (JU, KA, JI, KJ, KK, LK, ML, KS, LT, MU, MA, NA, OB, NJ, OK, OL, PL, IL, HT, IT, IU), (KT, KU, KI, LI, LJ, MK, NL, LS, MT, NU, OU, OA, NI, OI, OJ, PK, QK, QL, QU, QA, JT), (RA, SA, SI, MH, MI, MJ, NK, MS, NS, NT, OT, PA, NH, PI, PJ, QJ, RK, PR, QS, QT, RU), (SU, UU, SH, TI, TJ, TK, UK, AU, OR, OS, PT, PU, OH, PH, QI, RJ, SK, QR, RS, RT, ST), (TU, SG, TH, UI, UJ, AJ, BJ, AS, AT, BT, BU, PS, QG, RG, QH, RI, SJ, RR, SR, SS, TT), (UT, TG, UG, UH, AI, BI, UQ, AR, BS, CT, DT, ET, CH, DH, DI, DJ, RH, SQ, TQ, TR, TS), (US, UF, AG, AH, BH, CJ, AQ, BR, CR, CS, DS, CF, CG, EH, EI, FI, GI, FR, FS, FT, UR), (JS, HG, AF, BF, BG, CI, BP, BQ, CQ, DR, ES, DF, DG, EG, FH, GH, EP, FQ, GR, GS, HS), (HE, HF, IG, IH, JH, LH, CP, DP, DQ, EQ, ER, EE, EF, FF, FG, HI, FP, GP, GQ, HR, IS), (IE, IF, JG, KG, KH, JO, KQ, KR, LR, MR, DE, FE, GE, GF, GG, HH, GO, HP, HQ, IQ, IR), (ID, JE, JF, KF, LG, JN, KP, LP, LQ, NR, ME, MF, NF, NG, OG, FO, HO, IO, IP, JQ, JR), (JD, KD, KE, LF, MG, KO, LO, MP, MQ, NQ, MD, ND, NE, OF, PG, ON, PP, PQ, QQ, JP, HD), (RE, LC, LD, LE, KN, LN, MN, MO, NP, OQ, MC, OD, OE, PE, PF, OM, PO, QO, QP, RQ, RD), (SD, SE, SF, TF, UO, NM, NN, NO, OO, OP, NC, OC, PD, QE, QF, PN, QN, RO, RP, SP, RC), (SC, TD, TE, UE, TM, UN, AO, UP, AP, BD, PB, QB, PC, QD, RF, QM, RM, RN, SO, TP, RB), (TB, TC, UD, AE, TL, UM, AN, BO, CO, BB, BC, CD, CE, QC, PM, RL, SL, SM, SN, TO, SB), (UB, UC, AD, BE, UL, AM, BN, CN, DO, BA, CC, DC, DD, ED, DL, EM, EN, EO, TN, TA, UA)
22 × 22 203877974 (AA, AB, AC, AE, IQ, IR, JR, KR, LS, TR, UR, US, VT, AU, IS, JT, JU, KV, LV, LA, UV, VA), (UO, UP, VP, BQ, JP, JQ, KQ, LR, MS, TQ, VR, VS, AS, AT, BV, KT, KU, LU, MU, MV, VV, UN), (VO, AO, AP, CQ, JO, KP, LP, LQ, MR, UQ, VQ, AR, BS, BT, BU, LT, MT, JM, KM, LN, MN, UM), (VN, AN, BO, BP, JN, KO, MP, MQ, NQ, NR, AQ, BR, CR, VK, AK, KJ, KK, KL, LM, MM, NN, VM), (AM, BN, CN, CO, KN, LO, MO, NO, NP, NI, VI, VJ, AJ, BK, CK, KI, LK, LL, ML, NM, ON, VL), (BM, CM, DM, DN, CP, LF, LG, LH, MH, OI, AG, AI, BI, BJ, CJ, DK, LJ, MJ, MK, NL, OM, AL), (CL, DL, BE, BF, CF, LE, MF, MG, NH, OH, AF, AH, BH, CI, DJ, EJ, LI, NJ, NK, OK, OL, BL), (BC, BD, CD, CE, DF, LD, ME, NF, NG, OG, PI, BG, CH, DH, DI, EI, MI, OJ, PJ, MC, NC, PD), (BB, CC, DD, DE, EF, MD, NE, OF, PF, PG, PH, CG, DG, EG, EH, DA, MA, MB, NB, OB, OC, QD), (BA, CB, DC, ED, EE, FF, ND, OE, PE, QE, QF, CT, CU, CV, DV, EA, FA, NV, NA, OA, PB, PC), (CA, DB, EC, FC, FD, FE, OD, NS, NT, OT, PT, CS, DT, DU, EU, EV, GA, NU, OV, PA, QB, QC), (RB, EB, FB, GB, DQ, EQ, OQ, OR, OS, PS, QT, RT, DS, ET, FU, FV, GV, OU, PV, QV, QA, RA), (QO, DO, DP, EP, FQ, GR, OP, PQ, PR, QS, RS, ST, DR, ES, FT, GT, GU, PU, QU, RU, RV, PO), (RO, EN, EO, FO, FP, GQ, HR, PP, QQ, QR, RR, SS, ER, FS, GS, HS, HT, FL, PL, PM, PN, QN), (SO, EM, FN, GO, GP, HP, HQ, OO, QP, RQ, SQ, SR, FR, EK, EL, FK, GL, HM, PK, QM, RM, RN), (SN, TO, FM, GN, HO, IO, IP, RP, SP, TP, QI, RJ, SJ, FI, FJ, GK, HL, IM, QK, QL, RL, SM), (TM, TN, GM, HN, IN, GG, HG, QG, QH, RH, RI, SI, TJ, FH, GI, GJ, HK, IL, QJ, RK, SL, TL), (UL, TE, GD, GE, GF, HF, IG, JH, RG, SG, SH, TI, UJ, GH, HI, HJ, IJ, IK, JL, SK, TK, UK), (TD, UE, GC, HD, HE, IF, JG, KH, RF, SF, TG, TH, UI, FG, HH, II, JI, JJ, JK, RC, RD, SD), (TC, UD, VE, HC, ID, IE, JF, KG, RE, TF, UG, UH, VG, VH, IH, HA, HB, IB, JB, SA, SB, SC), (UB, UC, VD, IC, JD, JE, KE, KF, SE, UF, VF, SU, TU, UU, HU, HV, IA, JA, KB, SV, TA, TB), (VB, VC, AD, JC, KC, KD, LC, JS, KS, TS, TT, UT, VU, AV, IT, IU, IV, JV, KA, LB, TV, UA)
23 × 23 286960950 (AA, AB, AC, AE, JQ, JR, JS, KS, LS, UR, VS, VT, WU, AU, BV, IT, JU, KV, LV, LW, MB, VW, WA), (BW, VP, WP, BQ, JP, KQ, KR, LR, MS, UQ, VR, WS, WT, AT, BU, JT, KU, LU, MV, MW, MA, WW, AW), (WN, WO, AP, CQ, JO, KP, LQ, MR, NR, NT, VQ, WR, AS, BS, BT, KT, LT, MT, MU, NU, LN, VN, VO), (AN, AO, BP, CP, KO, LO, LP, MQ, NQ, NS, WQ, AR, BR, CR, CS, AK, KL, KM, LM, MM, MN, NN, WM), (AM, BN, BO, CO, KN, MO, MP, NP, OP, OQ, AQ, WI, WJ, AJ, BK, DL, LJ, LK, LL, ML, NM, ON, WL), (BM, CM, CN, DO, DP, NO, OO, LH, MH, NH, OI, AH, AI, BJ, CJ, CK, LI, MJ, MK, NL, OM, PN, AL), (BL, CL, DM, DN, DF, ME, MF, MG, NG, OH, PI, AG, BH, BI, CI, DK, EL, NJ, NK, OK, OL, PM, WK), (BC, BD, BE, CE, EF, MD, NE, NF, OG, PH, QI, AF, BG, CH, DI, DJ, EK, MI, OJ, PJ, PK, PL, OC), (BB, CC, CD, DE, EE, MC, ND, OE, OF, PG, QH, BF, CG, DH, EH, EI, EJ, NI, NA, NB, NC, PC, RD), (BA, CB, DC, DD, ED, FF, OD, PE, PF, QF, QG, CF, DG, EG, FG, CW, DW, NV, NW, OA, OB, PB, QC), (CA, DB, EC, FC, FD, FE, PD, QD, QE, RE, RF, QU, CU, CV, DV, EV, EW, GA, OW, PW, PA, QB, RC), (DA, EA, EB, FB, GB, GC, OR, OS, OT, PT, QT, RU, CT, DT, DU, FV, FW, GW, OV, PV, QA, RA, RB), (SA, FA, DQ, EQ, ER, FR, GR, PR, PS, QS, RT, SU, DS, ET, EU, FU, GV, HW, OU, QV, QW, RW, SW), (RO, EN, EO, EP, FQ, GQ, IS, PQ, QR, RR, RS, ST, DR, ES, FT, GT, GU, HV, PU, RV, SV, PO, QO), (SO, EM, FO, FP, GP, HQ, HR, PP, QQ, RQ, SR, SS, TT, FS, GS, HS, HT, HU, HM, QL, QM, QN, RN), (TO, UP, FN, GN, GO, HP, IQ, QP, RP, SQ, TQ, TR, TS, FI, FK, FL, GL, HL, IM, QK, RL, RM, SN), (TN, UO, FM, HN, HO, IO, IP, IR, SP, TP, RI, SI, SJ, FH, FJ, GK, HK, IL, JM, RK, SL, SM, TM), (UM, UN, GM, IN, JN, GG, HG, KH, RG, RH, SH, TI, TJ, UJ, GI, GJ, HJ, IK, JL, QJ, SK, TL, UL), (VL, VM, GD, GE, GF, HF, IG, JG, SF, SG, TH, UH, UI, VJ, GH, HI, IJ, JJ, JK, RJ, TK, UK, VK), (TD, UD, VE, HD, HE, IF, JF, KG, SE, TF, TG, UG, VH, VI, HH, II, JI, KI, KJ, KK, SB, SC, SD), (UC, VD, WE, HC, ID, IE, JE, KF, LG, TE, UF, VG, WG, WH, IH, JH, HA, IA, JB, KB, TA, TB, TC), (VB, VC, WD, HB, IC, JD, KD, KE, LF, UE, VF, WF, UU, UV, VV, IV, IW, JA, KA, LB, TW, UA, UB), (WB, WC, AD, IB, JC, KC, LC, LD, LE, US, TU, UT, VU, WV, AV, IU, JV, JW, KW, LA, TV, UW, VA)
24 × 24 409173438 (AA, AB, AC, AM, BM, BN, CO, DO, DP, BA, CA, DB, EC, FC, GD, EM, FN, FO, GO, GP, HP, HB, HC, XA), (HD, KC, JM, BL, CL, CM, CN, DN, BX, DX, DA, EB, FB, GC, DL, EL, FM, GN, HO, IO, GX, HA, IB, IC), (JC, LC, JL, KM, KN, KO, LO, DM, CX, EW, EX, EA, FA, GB, EK, FL, GL, GM, HN, IN, GW, HX, IA, JB), (KB, LB, JK, KL, LM, LN, MN, NN, MX, NA, NB, FW, FX, GA, FK, GK, HL, HM, IM, JO, HW, IX, JX, JA), (LA, MB, KK, LK, LL, MM, NM, ON, MW, NX, OA, OB, PB, QB, PL, IJ, HK, IK, IL, JN, IW, JW, KX, KA), (MA, JJ, LJ, MK, ML, NL, OM, PN, MV, NW, OX, PA, QA, OI, PK, QL, QM, RM, SM, IV, JV, KV, KW, LX), (LW, KJ, MI, MJ, NK, OL, PM, MU, NV, OW, PX, QX, RA, PJ, QK, RK, RL, SL, TM, RU, SW, SX, TA, LV), (WX, VK, VL, NI, NJ, OJ, OK, NU, OV, PV, PW, QW, RX, PI, QJ, RJ, SK, TL, UL, SU, SV, TW, TX, UX), (XX, VI, VJ, WK, WL, XL, AL, OU, PU, QU, QV, RW, SA, QI, RI, SI, SJ, TK, RT, TU, TV, UW, VW, VX), (UH, VH, WI, WJ, XK, AK, XT, AU, AV, AW, BW, RV, QH, RH, SH, TI, TJ, UK, ST, TT, UU, UV, VV, WW), (VG, WH, XI, XJ, AJ, BK, XS, AT, BV, CV, CW, DW, CH, CI, DJ, TH, UI, UJ, US, UT, VT, VU, WV, XW), (WG, XG, XH, AI, BJ, CK, AS, BT, BU, CU, DV, EV, CG, DH, DI, EJ, DK, GJ, FT, VS, WS, WT, WU, XV), (AF, BF, AG, AH, BI, CJ, BS, CS, CT, DU, EU, FV, DG, EH, EI, FI, FJ, HJ, FS, GT, GU, GV, HV, XU), (IH, JH, JI, BG, BH, AR, BR, CR, DS, DT, ET, CF, EG, FG, FH, GH, GI, EQ, FR, GS, HT, HU, IU, HE), (IG, JG, KH, KI, LI, LS, LT, DR, ER, ES, FU, DF, EF, FF, GG, HH, HI, FQ, GR, HS, IT, JT, JU, IF), (JF, KG, LG, LH, MH, KQ, LR, MS, MT, LU, PT, EE, FE, GE, GF, HG, II, GQ, HR, IR, IS, JS, KU, IE), (KE, KF, LF, MG, NH, LQ, MR, NS, NT, OT, QT, OF, OG, PG, OH, PH, HF, IP, HQ, IQ, JR, KS, KT, JE), (KD, LE, MF, NG, KP, MP, MQ, NR, OR, OS, ND, OE, PF, QF, QG, RG, QQ, RR, RS, JP, JQ, KR, ID, JD), (LD, MD, ME, NF, LP, NP, NQ, OQ, PR, PS, NC, OD, PE, QE, RF, SG, QP, RQ, SQ, SR, SS, TS, TE, MC), (UF, VF, UG, NE, MO, NO, OO, OP, PQ, QS, OC, PD, QD, RE, SF, TG, QO, RP, SP, TQ, TR, VR, TD, UE), (VE, WE, WF, XF, WP, WQ, XR, PO, PP, QR, PC, QC, RC, RD, SE, TF, RO, SO, TP, UQ, UR, WR, TC, UD), (VD, WD, XE, WN, WO, XP, XQ, AQ, BQ, BD, BE, RB, SB, SC, SD, QN, SN, TN, TO, UP, VQ, TB, UC, VC), (WC, XD, AE, WM, XO, AO, AP, BP, CQ, BB, BC, CD, DD, CE, DE, RN, UM, UN, UO, VO, VP, UA, UB, VB), (XB, XC, AD, XM, XN, AN, BO, CP, DQ, AX, CB, CC, DC, ED, FD, EN, EO, EP, FP, VM, VN, VA, WA, WB)
25 × 25 560363762 (AA, AB, AC, AE, LC, JT, JU, KU, LU, NV, WU, WV, XV, XW, YW, BY, JV, KX, LX, LY, MY, NA, WY, XY, XA), (BA, XR, YR, BS, KR, KS, KT, LT, MU, OV, WT, XU, YU, YV, AW, AX, KV, KW, LW, MX, NX, NY, NB, YY, YA), (XQ, YQ, AR, CS, KQ, LR, LS, MS, MT, NU, WS, XT, YT, AV, BV, BW, BX, LV, MW, NW, OW, OX, MO, XO, XP), (YP, AP, AQ, BR, KP, LQ, MR, NS, NT, OU, XS, YS, AT, AU, BU, CU, CV, MV, LN, LO, MN, NO, OP, XN, YO), (AO, BP, BQ, CR, LP, MQ, NQ, NR, OS, OT, PT, AS, BT, CT, YL, AL, CM, LL, LM, MM, NN, OO, PP, XM, YN), (AN, BO, CP, CQ, DR, MP, OQ, OR, PQ, PR, PS, YJ, YK, AJ, AK, BL, DM, MK, ML, NM, OM, ON, PO, QP, YM), (BN, CO, DO, DP, DQ, NP, MH, MI, NI, OI, PJ, AH, AI, BJ, BK, CL, DL, EM, NK, NL, OL, PM, PN, QO, AM), (CN, DN, EN, BF, DG, NE, NG, NH, OH, PI, QI, QJ, BH, BI, CJ, CK, DK, EL, MJ, OK, PL, QL, QM, QN, BM), (BD, BE, CF, DF, EG, ND, NF, OG, PG, PH, QH, RJ, AG, CI, DI, DJ, EJ, EK, NJ, PK, QK, RK, RL, QD, BB), (BC, CD, CE, DE, EF, FG, OE, OF, PF, QG, RH, RI, BG, CH, DH, EI, FI, FJ, OJ, OA, OB, OC, PC, QC, RD), (CB, CC, DD, ED, EE, FF, OD, PE, QF, RF, RG, SH, CG, EH, FH, CY, DY, EA, FA, OY, PA, PB, QB, RC, SD), (DB, DC, EC, FD, FE, GE, PD, QE, RE, SE, SF, SG, RW, CW, CX, DX, EY, FY, GA, PY, QY, QA, RB, SC, TD), (CA, EB, FC, GC, HB, GD, GF, PU, PV, QV, RV, SW, TW, DV, DW, EX, FX, GY, HA, PX, QX, RA, SA, SB, TC), (DA, FB, GB, DS, ES, FT, GT, QS, QT, QU, RU, SV, UW, DU, EV, EW, FW, GX, HY, PW, RX, RY, SY, TA, TB), (SQ, EP, EQ, ER, FS, GS, HT, QR, RS, RT, SU, TV, UV, DT, EU, FV, GW, HW, HX, QW, SX, TX, TY, UX, UY), (UQ, EO, FQ, FR, GR, HS, IT, QQ, RR, ST, TT, TU, UU, ET, FU, GV, HV, IU, IV, IW, RN, RO, RP, SP, TQ), (VQ, FO, FP, GP, GQ, HR, IS, RQ, SR, SS, TS, UT, VT, VU, GU, HU, FM, GM, GN, HN, RM, SN, SO, TO, TP), (VP, WR, GO, HP, HQ, IQ, IR, JS, TR, UR, US, VS, TK, UK, FK, FL, GL, HL, HM, IN, SL, SM, TN, UO, UP), (VO, WQ, FN, HO, IP, JP, JQ, JR, VR, SI, SJ, TJ, UJ, VK, GI, GK, HK, IL, IM, JN, KO, TL, TM, UN, VN), (WO, WP, IO, JO, GG, HG, HH, IH, TF, TH, TI, UI, VJ, WK, XL, GJ, HJ, IK, JL, JM, KN, SK, UM, VM, WN), (UE, VE, HC, HE, HF, IG, JG, JH, LI, TG, UH, VI, WI, WJ, XK, HI, IJ, JK, KK, KL, KM, UL, VL, WL, WM), (WE, XE, YF, HD, IE, IF, JF, KG, KH, UF, UG, VH, WH, XI, XJ, GH, II, JJ, KJ, LJ, LK, UA, UC, UD, VD), (WD, XD, AF, ID, JD, JE, KF, LG, LH, TE, VG, WG, XH, YH, YI, JI, KI, IA, IB, JB, KB, MC, UB, VB, VC), (XC, YD, YE, IC, KD, KE, LE, LF, MG, VF, WF, XG, YG, VX, WX, IX, IY, JY, JA, KA, LB, NC, VA, WB, WC), (YB, YC, AD, JC, KC, LD, MD, ME, MF, XF, VV, VW, WW, XX, YX, AY, JW, JX, KY, LA, MA, MB, VY, WA, XB)
26 × 26 776271362 (AA, AB, AC, AE, KS, KT, KU, LU, MU, NV, XT, XV, YV, YW, ZW, AX, JV, KW, LX, MY, MZ, NZ, NA, XY, YZ, ZA), (BZ, YR, ZR, AS, KR, LS, LT, MT, NU, OV, XS, XU, YU, ZV, AW, BW, BY, KV, LW, MX, NY, OY, OZ, YY, ZZ, AZ), (YQ, ZQ, AR, BS, LQ, LR, MS, NS, NT, OU, PV, YT, ZU, AU, AV, BV, BX, LV, MW, NX, OW, OX, PW, YM, YO, XR), (ZP, AQ, BR, CS, LP, MQ, MR, NR, OS, OT, PU, YS, ZT, AT, BU, CU, CV, NW, LN, LO, MN, MO, NO, PP, YN, YP), (AO, AP, BQ, CR, DS, MP, NQ, OR, PR, PS, PT, ZS, BT, CT, ZL, AL, BL, CM, ML, MM, NM, NN, OO, QP, ZN, ZO), (BO, BP, CP, CQ, DR, NP, OQ, PQ, QQ, QR, QS, ZI, ZJ, ZK, AK, BK, CL, DM, MK, NL, OM, ON, PN, PO, ZM, AN), (BN, CO, DO, DP, DQ, OP, MI, NH, NI, OI, PI, RJ, AI, AJ, BJ, CK, DL, EM, MJ, NK, OL, PM, QN, QO, RO, AM), (CN, DN, EN, BF, CF, NF, NG, OG, OH, PH, QI, SJ, AH, BI, CI, CJ, DK, EL, NJ, OK, PL, QL, QM, RM, RN, BM), (BD, AF, BE, DF, EG, NE, OF, PF, PG, QG, QH, RI, AG, BH, DI, DJ, EJ, EK, OJ, PJ, PK, QK, RK, RL, PC, BC), (CC, CD, CE, DE, EF, FG, OE, PE, QF, RG, RH, SI, BG, CH, DH, EI, FI, FJ, FK, QJ, OB, OC, PB, QC, RC, BB), (CB, DC, DD, ED, EE, FF, OD, QE, RE, RF, SG, SH, CG, DG, EH, FH, CZ, DZ, EZ, PY, OA, PA, QA, QB, SC, BA), (CA, DB, EC, FD, FE, GE, PD, QD, SE, SF, TE, TF, QW, CW, CX, CY, DY, EY, FZ, PX, PZ, QZ, RA, RB, SB, TD), (DA, EB, FB, FC, GC, GD, GF, RD, SD, QV, RV, RW, SW, DV, DW, DX, EX, FY, GZ, HA, QY, RZ, SZ, SA, TB, TC), (EA, FA, GA, GB, HB, ET, FT, QT, QU, RU, SV, TW, VX, DU, EV, EW, FX, GX, GY, HZ, QX, RY, SY, TZ, TA, UB), (UC, EQ, ER, ES, FS, GT, HT, RS, RT, SU, TU, TV, UW, DT, EU, FV, FW, GW, HX, HY, RX, SX, TY, UY, UZ, UA), (UQ, EP, FQ, FR, GS, HS, JU, RR, SS, ST, TT, UU, UV, VW, FU, GV, HV, HW, IW, IX, TX, UX, RP, SP, SQ, TQ), (VQ, EO, FP, GQ, GR, HR, IT, RQ, SR, TS, UT, VT, VU, VV, GU, HU, IU, IV, GN, HN, SL, SN, SO, TO, TP, UP), (WQ, FO, GP, HP, HQ, IR, IS, JT, TR, US, VS, WS, WT, WU, GJ, FL, FM, GM, HM, IN, KO, SM, TM, TN, UO, VP), (WP, FN, GO, IP, IQ, JQ, JR, JS, UR, VR, WR, TJ, UJ, VK, YL, GK, GL, HL, IM, JM, JN, TL, UM, UN, VO, WO), (XO, XQ, HO, IO, JP, KP, KQ, IH, TG, TH, TI, UI, VJ, WK, XK, GI, HJ, HK, IL, JL, KN, SK, UL, VM, VN, WN), (XN, XP, JO, GG, HF, HG, IG, JH, KH, UG, UH, VI, WI, WJ, YK, HI, IJ, IK, JK, KL, KM, TK, UK, VL, WM, XM), (WD, XE, HD, HE, IF, JF, JG, KG, LH, UF, VG, VH, WH, XI, XJ, GH, II, JJ, KJ, KK, LL, LM, WL, XL, UD, VD), (XD, YE, HC, ID, IE, JE, KF, LG, MH, UE, VF, WG, XH, YH, YI, HH, JI, KI, LI, LJ, LK, KB, VA, VB, VC, WC), (XC, YD, IB, IC, JD, KD, KE, LF, MG, VE, WF, XG, YG, ZG, ZH, YJ, IY, IZ, IA, JA, KA, LB, VZ, WA, WB, XB), (YC, ZD, ZE, JC, KC, LD, LE, ME, MF, WE, XF, YF, ZF, WX, XX, ZY, JX, JY, JZ, KZ, LA, MB, VY, WZ, XA, YB), (ZB, ZC, AD, JB, LC, MC, MD, NC, ND, MV, WV, WW, XW, YX, ZX, AY, JW, KX, KY, LY, LZ, MA, NB, WY, XZ, YA)
27 × 27 1039341134 (AA, AB, AC, AD, BD, CD, DE, NC, OD, OE, PF, QG, RG, RH, AF, BG, CG, CH, DI, DJ, EK, OI, PI, QJ, RJ, RK, RL), (AL, BL, CM, DM, DN, BE, CE, ND, NE, OF, OG, PG, QH, SI, AG, AH, BH, BI, CI, DK, MH, NI, OJ, PJ, QK, QL, RM), (1L, BM, BN, CN, CO, DO, CQ, PP, MG, NF, NG, OH, PH, 1F, 1H, 1I, AI, BJ, CJ, CK, MI, NJ, OK, PK, PL, QM, QN), (1M, AM, AN, BO, BP, CP, MO, NO, OP, PQ, QP, QQ, NH, 1G, ZI, ZJ, 1J, AJ, BK, DL, MJ, NK, NL, OL, PM, PN, QO), (ZM, 1N, AO, AP, BQ, CR, LO, NP, NQ, OQ, PR, PS, PT, ZR, AS, BS, ZK, 1K, AK, CL, LK, MK, ML, NM, OM, ON, ZL), (ZN, ZO, 1O, 1P, AQ, BR, LP, MP, MQ, NR, OR, OS, PU, ZS, 1S, AT, BT, BU, BV, NV, LL, LM, LN, MM, NN, PO, YM), (YO, YP, ZP, 1Q, AR, CS, KP, LQ, MR, MS, NS, OT, YR, YS, ZT, 1T, AU, AV, BW, KU, MV, NW, OV, OW, MN, OO, YN), (1Y, XQ, YQ, ZQ, 1R, KO, KQ, KR, LR, LS, NT, OU, XR, YT, ZU, 1U, 1V, AW, AX, JU, LV, MW, NX, NY, OX, OY, ZY), (ZZ, 1Z, AZ, A1, 1B, LA, JS, JT, KS, LT, MT, NU, XS, XT, YU, YV, ZV, 1W, AY, KV, KW, LW, MX, MY, NZ, WX, YY), (YZ, Z1, 11, 1A, 1C, KA, LB, MB, NB, KT, LU, MU, WU, XU, XV, YW, ZW, 1X, JV, JW, KX, LX, LY, MZ, N1, WY, XY), (Y1, YA, ZA, ZB, 1D, JA, JB, KB, LC, MC, MD, MF, XD, WV, WW, XW, YX, ZX, IW, JX, JY, KY, LZ, M1, NA, WZ, XZ), (X1, XA, YB, ZC, H1, IA, JC, KC, LD, LE, ME, WD, XE, YE, ZE, ZF, ZG, XX, IX, IY, IZ, JZ, KZ, L1, MA, VZ, W1), (WA, XB, YC, ZD, HA, IB, IC, JD, KD, KE, LF, VD, WE, XF, YF, YG, YH, ZH, IG, KH, LH, I1, J1, K1, VY, V1, VA), (VB, WB, XC, YD, HB, HC, HD, ID, JE, KF, LG, VE, WF, WG, XG, XH, YI, HG, IH, JH, JI, KI, LI, LJ, WK, UB, UC), (XL, YL, VC, WC, GD, GE, HE, IE, JF, KG, UD, UE, VF, VG, WH, XI, YJ, GG, HH, II, JJ, KJ, KK, KL, UJ, VK, XK), (WM, XM, XN, XP, IN, JN, GF, HF, IF, JG, TF, UF, UG, UH, VH, WI, XJ, GH, GI, HI, IJ, JK, JL, KM, UK, VL, WL), (WN, WO, XO, FM, GN, HN, IO, JO, JP, JQ, TG, TH, TI, UI, VI, WJ, YK, FI, GJ, HJ, IK, IL, JM, TJ, TK, UL, VM), (VN, VO, WP, EM, GO, HO, HP, IP, IR, JR, UQ, VQ, VR, WR, WS, VJ, FH, FJ, FK, GK, HK, HL, KN, SJ, TL, UM, UN), (UO, VP, WQ, FN, FO, GP, HQ, IQ, IS, RP, TQ, UR, US, VS, VT, WT, FT, GT, EL, FL, GL, HM, IM, SK, SM, TM, TN), (TO, UP, EN, EO, FP, FQ, GQ, HR, HS, SQ, SR, TR, TS, UT, VU, VV, ET, GU, HU, HV, IU, IV, GM, SL, RN, SN, SO), (SP, TP, DP, EP, EQ, FR, GR, GS, IT, RQ, RS, SS, TT, UU, UV, VW, DT, FU, GV, GW, HW, HX, RW, SW, UX, VX, RO), (UZ, U1, F1, DQ, DR, ER, ES, FS, HT, RR, RT, ST, SU, TU, TV, CT, EU, EV, FV, FW, GX, HY, QW, SX, TX, TY, UY), (T1, UA, DZ, E1, G1, GA, GB, DS, QR, QS, QT, QU, RU, SV, UW, CU, DU, DV, EW, FX, GY, HZ, PW, RX, SY, SZ, TZ), (TA, CZ, D1, EA, FA, FB, FC, GC, RC, SC, TC, PV, QV, RV, TW, CV, CW, DW, DX, EX, FY, GZ, QX, QY, RY, RZ, S1), (TB, BZ, C1, DA, EB, EC, FD, FE, PB, QC, RD, SD, TD, TE, SG, EF, BX, BY, CX, DY, EY, FZ, PY, PZ, QZ, R1, SA), (SB, B1, CA, CB, DB, DC, ED, FF, PC, PD, QD, RE, SE, SF, AE, CF, DF, EG, FG, CY, EZ, PX, OZ, P1, Q1, QA, RA), (RB, BA, BB, BC, CC, DD, EE, OB, OC, PE, QE, QF, RF, SH, 1E, BF, DG, DH, EH, EI, EJ, QI, RI, O1, OA, PA, QB)
28 × 28 1404785310 (AA, AB, AC, AD, BD, CD, DE, OC, OD, PD, PE, QF, RG, SH, 2E, AF, BG, CH, DI, DJ, EK, OI, PI, QJ, RJ, SJ, SK, RM), (AL, BL, CM, DM, DN, BE, CE, NE, OE, OF, PF, QG, QH, RH, 2F, AG, BH, CI, CJ, DK, EL, MH, OJ, PJ, QK, RK, RL, RN), (2L, AM, BM, CN, CO, DO, DP, PP, NF, NG, OG, PG, PH, SI, 2H, AH, AI, BI, BJ, CK, DL, NI, OK, PK, PL, QL, QM, RO), (2M, AN, BN, BO, CP, CQ, MO, NO, OP, QP, QQ, RP, OH, 2G, 1I, 2I, 2J, AJ, BK, CL, MI, NJ, NK, NL, OL, PM, QN, 1L), (1M, 2N, AO, AP, BP, CR, LO, NP, OQ, PQ, PR, QR, QS, 2S, AS, BS, 1J, 1K, 2K, AK, MJ, MK, ML, NM, OM, PN, QO, ZL), (1N, 1O, 2O, AQ, BQ, BR, MP, MQ, NQ, OR, OS, PS, PU, ZR, 2T, AT, BT, BU, CT, BW, NV, LM, LN, MM, NN, ON, PO, ZM), (ZO, 1P, 2P, 2Q, AR, CS, LP, MR, NR, NS, OT, PT, PV, 1S, 1T, 2U, AU, AV, BV, BX, MV, NW, OW, PW, PX, MN, OO, ZN), (YQ, ZP, ZQ, 1Q, 2R, KP, LQ, LR, MS, MT, NT, OU, YR, ZS, ZT, 1U, 2V, AW, AX, JU, LV, MW, NX, OX, OY, OZ, ZY, 2Z), (1Z, 21, AZ, A1, 1R, KQ, KR, KS, LS, LT, NU, OV, YS, YT, ZU, 1V, 1W, 2W, 2X, KV, LW, MX, MY, NY, NZ, O1, YY, ZZ), (11, 12, 22, 2A, 2B, LA, MA, NA, KT, KU, LU, MU, XT, YU, YV, ZV, ZW, 1X, AY, JV, KW, LX, LY, MZ, N1, O2, XY, YZ), (Z1, Z2, 1A, 1B, 2C, KA, LB, MB, MC, NB, NC, ND, XU, XV, XW, YW, ZX, 1Y, 2Y, JX, KX, KY, KZ, LZ, M1, N2, XZ, Y1), (YA, ZA, ZB, 1C, I2, JA, KB, LC, LD, MD, ME, VC, YD, ZE, 1E, 1F, XX, YX, JW, IY, JY, JZ, K1, L1, M2, WY, X1, Y2), (XA, YB, ZC, 2D, IA, JB, JC, KC, KD, LE, MF, WD, XD, YE, ZF, ZG, 1G, 1H, JG, KG, IZ, I1, J1, K2, L2, WZ, W2, X2), (WB, XB, YC, 1D, HA, IB, IC, JD, KE, LF, MG, VD, XE, XF, YF, YG, ZH, ZI, IG, JH, KH, LH, LI, LJ, J2, W1, VA, WA), (VB, WC, XC, ZD, HB, HC, ID, IE, JE, KF, LG, VE, WE, WF, XG, YH, YI, ZJ, HG, IH, JI, KI, KJ, LK, LL, XK, YK, ZK), (YL, YM, YN, JN, GD, GE, HD, HE, IF, JF, UD, VF, VG, WG, XH, XI, YJ, GG, HH, HI, II, JJ, KK, KL, UJ, VK, WK, XL), (XM, XN, YO, FM, IN, IO, JO, KO, GF, HF, UE, UF, UG, VH, WH, WI, XJ, GH, GI, HJ, IJ, IK, JK, KM, TJ, UK, WL, WM), (WN, XO, YP, GN, HN, HO, IP, JP, JQ, JS, UQ, VQ, TI, UH, UI, VI, WJ, FH, FJ, GJ, HK, IL, JL, JM, TK, UL, VL, VM), (WO, XP, XQ, FN, GO, HP, IQ, IR, JR, JT, TQ, VR, WR, WS, XR, XS, VJ, FI, FK, GK, GL, HL, IM, KN, TL, TM, UM, VN), (VO, WP, EM, FO, GP, GQ, HQ, HR, IS, SQ, TR, UR, US, VS, WT, WU, FT, GU, HU, IU, FL, GM, HM, SL, SM, TN, UN, UO), (VP, WQ, EN, EP, FP, FQ, GR, HS, IT, RQ, SR, TS, UT, VT, VU, WV, ET, FU, GV, HV, IV, IW, IX, UX, VX, SN, SO, TO), (TP, UP, EO, DQ, EQ, ER, FR, GS, HT, RR, SS, ST, TT, UU, VV, WW, DT, EU, FV, GW, HW, HX, HY, RW, TX, UY, VY, SP), (V1, V2, E1, F1, DR, DS, ES, FS, GT, RS, RT, SU, TU, UV, VW, WX, DU, EV, EW, FW, GX, GY, HZ, SX, SY, TY, UZ, VZ), (U2, BZ, D1, F2, G2, GA, H2, GB, QT, QU, QV, RU, SV, TV, UW, CU, DV, DW, EX, FX, FY, GZ, QW, RX, RY, TZ, T1, U1), (UA, C1, D2, E2, EA, FA, FB, GC, RB, SB, TC, UC, RV, SW, TW, CV, CW, CX, DX, EY, FZ, H1, QX, QY, RZ, SZ, S1, T2), (UB, B1, C2, DA, DB, EB, FC, FD, QB, RC, SC, SD, TD, TE, TG, EF, FF, BY, CY, DY, EZ, G1, PY, QZ, Q1, R1, S2, TA), (TB, B2, CA, CB, DC, EC, ED, FE, PB, QC, RD, SE, SF, TF, TH, CF, DF, EG, EH, FG, CZ, DZ, PZ, P1, P2, Q2, R2, SA), (A2, BA, BB, BC, CC, DD, EE, OB, PC, QD, QE, RE, RF, SG, AE, BF, CG, DG, DH, EI, EJ, NH, QI, RI, OA, PA, QA, RA)
29 × 29 1843328926 (AA, AB, AC, AD, BD, CD, DE, OC, OE, PE, PF, QF, RG, SH, 3E, AF, BH, CH, CI, DI, EJ, EL, OI, QJ, RK, SK, SL, TK, SN), (A3, BA, BB, BC, CC, DD, EE, PC, PD, QD, QE, RF, SG, TG, TI, BF, BG, CG, DH, EH, EI, EK, PI, RJ, SJ, TJ, PA, QA, SB), (VC, B3, CA, CB, DC, ED, FE, FF, QC, RD, RE, SE, SF, TF, TH, AE, CF, DG, EG, FG, FH, FI, QZ, P2, P3, Q3, R3, RA, TB), (UB, B2, C3, DA, DB, EC, FD, GE, PB, RC, SD, TD, TE, UF, UG, DF, EF, BZ, CZ, C1, D1, E1, QY, Q1, Q2, R2, S3, SA, TA), (VB, C2, D3, EA, EB, FB, FC, GD, QB, SC, TC, UC, UD, UE, SX, CV, CX, CY, DY, DZ, EZ, F1, G2, RZ, R1, S1, S2, T3, UA), (VA, B1, D2, E3, FA, GA, GB, GC, RB, RU, RV, RW, SW, TX, UX, WY, CW, DW, DX, EY, FZ, G1, H2, RY, SZ, T1, T2, U2, U3), (V3, E2, F2, F3, G3, H3, ET, FT, HU, RT, SU, SV, TV, TW, UW, VX, DV, EW, EX, FX, FY, GZ, H1, QX, SY, TZ, U1, V1, V2), (W2, TQ, DR, DS, DT, ES, FS, GT, IU, SS, ST, TT, TU, UV, VW, WX, DU, EV, FW, GX, GY, HY, HZ, RX, TY, UZ, VZ, WZ, W1), (UQ, VQ, EP, EQ, ER, FR, GS, HT, JU, SR, TS, UT, UU, VU, VV, WW, EU, FV, GV, GW, HX, IX, IY, IZ, UY, VY, SP, TP, UP), (WQ, YR, EO, FP, FQ, GQ, GR, HS, IT, SQ, TR, US, VT, WU, WV, XV, XX, FU, HV, HW, IV, IW, JV, HN, TM, TN, TO, UO, VP), (WP, XQ, EN, FO, GP, HQ, HR, IR, IS, JT, UR, VS, WS, WT, XT, XU, XW, GU, FK, FL, FM, GM, HM, IN, TL, UM, UN, VN, VO), (XP, YP, YQ, FN, GO, HP, IQ, JQ, JR, JS, VR, WR, XS, YS, YT, VJ, WJ, FJ, GJ, GK, GL, HL, IM, JN, UK, UL, VM, WN, WO), (XO, YO, ZP, GN, HO, IP, JP, KP, KQ, KR, XR, UH, UI, VI, WI, XJ, YJ, GH, GI, HJ, HK, IK, IL, JM, KN, VK, VL, WM, XN), (YN, ZN, ZO, IO, JO, KO, GF, HF, IF, JG, VD, VF, VG, VH, WH, XI, ZJ, ZK, HH, HI, IJ, JK, JL, KM, LN, UJ, WL, XM, YM), (ZM, 1L, XC, HA, HC, HD, HE, IE, JF, KG, MH, VE, WG, XG, XH, YI, ZI, 1K, GG, II, JI, JJ, KK, KL, LM, WK, XL, YL, ZL), (XB, YC, ZD, 1D, HB, IC, ID, JE, KE, KF, LG, WE, WF, XF, YG, YH, ZH, 1J, HG, IH, KI, KJ, LJ, LK, LL, XK, YK, WB, WC), (YA, YB, ZC, 2D, IB, JC, JD, KD, LE, LF, MG, WD, XE, YF, ZG, 1G, 1H, 1I, IG, JH, KH, LI, MI, MJ, J3, K3, W3, WA, XA), (ZA, ZB, 1B, 1C, IA, JB, KB, KC, LD, ME, MF, XD, YE, ZE, ZF, 1F, 2F, 2G, 2H, LH, I1, I2, J2, K2, L3, M3, X2, X3, Y3), (Z3, 1A, 2B, 2C, I3, JA, LB, LC, MC, MD, ND, NF, YD, 1E, 2E, XY, YY, ZY, 2Z, JY, JZ, J1, K1, L2, M2, OA, X1, Y2, Z2), (13, 23, 2A, 3B, 3D, KA, LA, MB, NB, NC, OB, NE, YV, YW, YX, ZX, 1X, 1Y, 3Z, JX, KY, KZ, LZ, L1, M1, N3, XZ, Y1, Z1), (12, 22, 33, 3A, 3C, MA, NA, KU, KV, LV, MV, NV, YU, ZU, ZV, ZW, 2X, 2Y, 3Y, JW, KX, LY, MZ, NZ, N1, N2, O3, YZ, 11), (31, 32, A1, A2, 3S, KS, KT, LT, LU, MU, NU, OV, PW, ZT, 1V, 1W, 2W, 3X, AY, AZ, KW, LX, MY, NY, OZ, O1, O2, ZZ, 21), (ZR, 1Q, 1R, 2R, AS, LP, LR, LS, MT, NT, OU, PV, QW, 1T, 1U, 2V, 3V, 3W, AX, BY, LW, MX, NX, OY, PY, PZ, P1, 1Z, ZQ), (1P, 2Q, 3Q, 3R, AR, BS, LQ, MR, MS, NS, OT, PU, QV, ZS, 2T, 2U, AV, AW, BW, BX, MW, NW, OX, PX, LO, MO, NO, 1M, 1O), (2O, 2P, 3P, AQ, BR, CS, MQ, NQ, NR, OS, PS, PT, QU, 1S, 3T, 3U, AU, BU, BV, CU, OW, ML, MM, MN, NN, OO, PO, QP, 1N), (2N, 3O, AP, BP, BQ, CR, MP, OQ, OR, PR, QR, QS, QT, 2S, AT, BT, CT, 2K, 3K, AL, BL, MK, NL, NM, ON, PN, QO, RP, 2M), (3N, AN, AO, BO, CP, CQ, NP, OP, PQ, QQ, RQ, RR, RS, QI, 2I, 2J, 3J, AJ, AK, BK, CL, NJ, NK, OL, OM, PM, QN, RO, 2L), (3M, AM, BN, CO, DO, DP, DQ, PP, NG, NH, OH, PH, QH, RI, 3G, 3H, 3I, AI, BJ, CK, DL, NI, OK, PK, PL, QL, QM, RN, 3L), (BM, CM, CN, DM, DN, BE, CE, OD, OF, OG, PG, QG, RH, SI, 3F, AG, AH, BI, CJ, DJ, DK, EM, OJ, PJ, QK, RL, RM, SM, SO)
30 × 30 2439441116 (AA, AB, AC, AD, BD, CD, DE, EF, PC, PE, QE, RF, RG, SG, TI, AF, BG, BH, CH, DI, EJ, EK, EL, OI, QJ, SK, TK, TL, UK, RB), (AM, CN, DN, 4E, AE, BE, CE, DF, PD, PF, QF, QG, RH, SH, UJ, 4F, AG, BI, CI, CJ, DJ, DK, EM, PJ, QK, RK, RL, SL, TM, TN), (4M, BN, BO, CO, DO, EN, DQ, OE, OF, OG, PG, PH, QH, RI, SI, 4G, AH, AI, AJ, BJ, CK, DL, NI, OJ, PK, QL, RM, SM, SN, SO), (4N, AN, AO, BP, CP, DP, DR, PQ, QQ, QR, RR, OH, PI, QI, TJ, 4H, 4I, 4J, AK, BK, CL, DM, NJ, OK, PL, PM, QM, RN, RO, SP), (3N, 4O, AP, BQ, CQ, CR, DS, MP, OQ, PR, QS, RS, SR, RU, AU, 3I, 3J, 3K, 4K, AL, BL, CM, NK, OL, OM, PN, QN, QO, RP, 3M), (3O, 4P, 4Q, AQ, BR, CS, CT, NQ, OR, PS, PT, QT, RT, RV, 3T, 4U, BU, CU, CV, 3L, 4L, BM, NL, NM, NN, ON, PO, QP, SQ, 2M), (2P, 3P, 3Q, 4R, AR, BS, MQ, NR, NS, OS, OT, PU, QU, QW, 2T, 3U, AV, AW, BV, BW, BY, OX, MM, MN, MO, NO, OO, PP, RQ, 2N), (2Q, 2R, 3R, 4S, AS, BT, LQ, MR, MS, NT, OU, PV, QV, QX, 2U, 3V, 4V, 4W, AX, BX, BZ, MX, NX, OY, PY, QY, QZ, NP, OP, 2O), (42, 1R, 1S, 2S, 3S, AT, LR, LT, MT, NU, NV, OV, PW, 1T, 1U, 2V, 3W, 4X, 4Y, AY, AZ, KW, MY, NY, OZ, PZ, P1, P2, 11, 32), (33, 43, A2, A3, A4, 4T, LS, KV, LU, MU, MV, OW, PX, ZU, 1V, 2W, 2X, 3X, 3Y, 4Z, A1, LX, LY, MZ, NZ, O1, O2, P3, Z1, 22), (23, 34, 44, 4A, 4B, LA, MA, NA, OB, LV, LW, MW, NW, ZV, 1W, ZX, 1X, 2Y, 3Z, 41, KX, KY, LZ, M1, N1, N2, O3, P4, Y1, 12), (13, 24, 3A, 3B, 4C, KA, LB, MB, NB, NC, OC, OD, NG, ZW, YY, YZ, ZY, 1Y, 2Z, 31, JY, KZ, L1, L2, M2, N3, O4, OA, Z2, Z3), (14, 2A, 2B, 3C, 4D, I4, KB, LC, MC, MD, ND, NE, YD, 1E, 2E, 3E, 3F, ZZ, 1Z, 21, JZ, J1, K1, K2, L3, M3, N4, Y2, Y3, Z4), (ZA, 1A, 1B, 2C, 3D, JA, JB, KC, LD, LE, ME, NF, XD, ZE, 1F, 2F, 2G, 3G, 3H, 2J, KH, I3, J2, J3, K3, L4, M4, X3, Y4, YA), (YB, ZB, 1C, 2D, IA, IB, JC, KD, KE, LF, MF, NH, WD, YE, ZF, 1G, 1H, 2H, 2I, HG, JH, KI, LI, MI, MJ, J4, K4, X4, XA, XB), (XC, YC, ZC, 1D, HC, IC, ID, JD, JE, KF, MG, MH, XE, YF, YG, ZG, ZH, 1I, 2K, GG, IH, JI, KJ, LJ, LK, MK, ML, ZL, 1L, WC), (1M, 1N, 1O, ZD, HD, HE, IE, IF, JF, KG, LG, WE, XF, XG, XH, YH, ZI, 1J, 1K, HH, II, JJ, JK, KK, LL, LM, WK, XL, YL, ZM), (ZN, ZO, 1P, 1Q, IO, JP, KP, HF, IG, JG, LH, WF, WG, WH, XI, YI, YJ, ZJ, 2L, HI, IJ, IK, JL, KL, KM, LN, VK, WL, XM, YM), (YO, ZP, ZQ, FN, HO, IP, JQ, KQ, LP, KR, KT, VG, VH, VI, WI, WJ, XJ, ZK, GH, GJ, HJ, HK, IL, JM, KN, LO, VL, WM, XN, YN), (XP, YP, ZR, GO, GP, HP, IQ, IR, JR, KS, KU, WS, XS, YS, ZT, VJ, XK, YK, GI, FK, GK, HL, HM, IM, JN, KO, VM, WN, WO, XO), (XQ, YQ, YR, FO, GQ, HQ, HR, IS, JS, JT, UR, VS, WT, XT, YT, YU, YV, YW, HV, FL, FM, GL, GM, IN, JO, UL, UN, VN, VO, WP), (WQ, XR, ZS, FP, FQ, GR, GS, HS, IT, JU, TR, US, VT, WU, XU, XV, XW, YX, GV, HW, IW, JW, JX, GN, HN, UM, TO, UO, UP, VP), (VQ, WR, EO, EQ, FR, FS, GT, HT, IU, JV, TS, UT, VU, VV, WV, WW, XX, EV, FV, GW, HX, IX, IY, IZ, I1, VZ, WZ, TP, TQ, UQ), (X2, VR, EP, ER, ES, ET, FT, GU, HU, IV, TT, TU, UU, UV, VW, WX, XY, DV, EW, FW, GX, HY, HZ, H1, I2, UZ, V1, W1, W2, X1), (W4, WA, E3, G4, H4, DT, DU, EU, FU, SS, SU, SV, TV, UW, UX, VX, WY, DW, EX, FX, FY, GY, GZ, H2, SY, TZ, U1, U2, V2, W3), (VA, WB, D3, F4, FA, GA, HA, HB, GD, ST, RW, RX, SW, TW, TX, VY, XZ, DX, DY, EY, FZ, F1, G1, G2, RY, SZ, T1, T2, V3, V4), (VB, C3, D4, E4, EA, FB, GB, GC, GE, SC, TC, UC, VD, SX, TY, UY, CW, CY, CZ, DZ, EZ, E1, F2, H3, RZ, S1, S2, T3, U3, U4), (UB, B3, C4, DA, DB, EB, FC, FD, GF, RC, SD, TD, UD, UE, VE, VF, CX, B1, B2, C1, D1, E2, F3, G3, R1, R2, R3, S3, T4, UA), (VC, B4, CA, CB, DC, EC, ED, FE, QB, QC, RD, TE, TF, UF, UG, UH, CF, DG, EG, FG, FH, C2, D2, Q1, Q2, Q3, R4, S4, SA, TA), (TB, BA, BB, BC, CC, DD, EE, FF, PB, QD, RE, SE, SF, TG, TH, UI, BF, CG, DH, EH, EI, FI, FJ, RJ, SJ, PA, Q4, QA, RA, SB)


The following noteworthy solutions were received after the contest ended.

No noteworthy solutions have been received since the contest ended.