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Topswops


The Topswops contest has ended. Congratulations to our winners:

Position Winner Prize
1st Jarek Wroblewski Poland Any sculpture by Bathsheba Grossman from these pages:
2nd Tomas Rokicki United States Any sculpture by Bathsheba Grossman from these pages:


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
23 cards 382 Wes Sampson La Jolla, California, United States 6 Dec 2010 06:39
Giuliano Bertoletti Parma, Italy 6 Dec 2010 08:02
Marcin Mucha Warszawa, Poland 6 Dec 2010 15:09
Ambrose Slone San Jose, California, United States 7 Dec 2010 14:14
Hermann Jurksch Recklinghausen, Germany 8 Dec 2010 17:01
Ed Mertensotto Lone Tree, Colorado, United States 22 Dec 2010 04:20
Tomas Rokicki Palo Alto, California, United States 24 Dec 2010 18:02
Michael Collier Perth, Australia 14 Jan 2011 10:15
John Morris Simi Valley, California, United States 17 Jan 2011 15:33
Arul Murugan Sunnyvale, California, United States 26 Jan 2011 03:15
Herbert Kociemba Darmstadt, Germany 31 Jan 2011 20:41
Walter Trump Nuremberg, Germany 4 Feb 2011 10:37
Fulvio Baccaglini New Malden, England, United Kingdom 8 Feb 2011 00:22
29 cards 689 Hermann Jurksch Recklinghausen, Germany 11 Dec 2010 23:47
31 cards 819 Hermann Jurksch Recklinghausen, Germany 8 Dec 2010 17:56
Tomas Rokicki Palo Alto, California, United States 11 Feb 2011 21:04
37 cards 1296 Tomas Rokicki Palo Alto, California, United States 12 Feb 2011 06:41
41 cards 1677 Tomas Rokicki Palo Alto, California, United States 12 Feb 2011 06:42
43 cards 2002 Jarek Wroblewski Wroclaw, Poland 11 Jan 2011 05:36
47 cards 2492 Jarek Wroblewski Wroclaw, Poland 8 Feb 2011 15:47
53 cards 3185 Jarek Wroblewski Wroclaw, Poland 16 Jan 2011 14:34
59 cards 4393 Jarek Wroblewski Wroclaw, Poland 16 Dec 2010 08:07
Tomas Rokicki Palo Alto, California, United States 11 Feb 2011 21:05
61 cards 4846 Jarek Wroblewski Wroclaw, Poland 20 Jan 2011 03:45
67 cards 5695 Jarek Wroblewski Wroclaw, Poland 21 Jan 2011 11:24
71 cards 6834 Jarek Wroblewski Wroclaw, Poland 21 Jan 2011 19:36
73 cards 7203 Jarek Wroblewski Wroclaw, Poland 6 Feb 2011 03:48
79 cards 8781 Tomas Rokicki Palo Alto, California, United States 12 Feb 2011 06:44
83 cards 9938 Tomas Rokicki Palo Alto, California, United States 12 Feb 2011 06:45
89 cards 11802 Tomas Rokicki Palo Alto, California, United States 12 Feb 2011 06:45
97 cards 15008 Jarek Wroblewski Wroclaw, Poland 13 Jan 2011 10:20


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

Problem Score Solution
2 cards 1 2, 1
3 cards 2 2, 3, 1
3, 1, 2
5 cards 7 3, 1, 4, 5, 2
7 cards 16 3, 1, 4, 6, 7, 5, 2
4, 7, 6, 2, 1, 5, 3
11 cards 51 4, 9, 11, 6, 10, 7, 8, 2, 1, 3, 5
13 cards 80 2, 9, 4, 5, 11, 12, 10, 1, 8, 13, 3, 6, 7
17 cards 159 2, 10, 15, 11, 7, 14, 5, 16, 6, 4, 17, 13, 1, 3, 8, 9, 12
8, 15, 17, 13, 9, 4, 6, 3, 2, 12, 16, 14, 11, 5, 10, 1, 7
19 cards 221 12, 15, 11, 1, 10, 17, 19, 2, 5, 8, 9, 4, 18, 13, 16, 7, 3, 14, 6
12, 1, 18, 11, 3, 14, 2, 6, 8, 16, 5, 4, 15, 10, 13, 17, 19, 7, 9
12, 1, 18, 11, 2, 3, 14, 6, 8, 16, 5, 4, 15, 10, 13, 17, 19, 7, 9
9, 4, 19, 17, 10, 1, 11, 15, 12, 8, 5, 2, 18, 13, 16, 7, 3, 14, 6
23 cards 382 14, 10, 22, 7, 8, 11, 19, 17, 15, 6, 16, 23, 20, 9, 2, 21, 3, 1, 5, 4, 12, 18, 13
29 cards 689 8, 3, 4, 14, 11, 16, 18, 7, 21, 9, 15, 20, 22, 5, 12, 6, 10, 2, 25, 27, 17, 13, 26, 28, 1, 29, 19, 24, 23
31 cards 819 16, 13, 17, 14, 26, 28, 20, 30, 1, 8, 31, 27, 23, 2, 22, 10, 7, 12, 25, 6, 11, 15, 21, 4, 5, 3, 24, 18, 19, 9, 29
16, 13, 17, 14, 26, 28, 20, 30, 1, 8, 31, 27, 23, 22, 10, 2, 7, 6, 25, 3, 11, 15, 21, 4, 5, 12, 24, 18, 19, 9, 29
37 cards 1296 3, 18, 4, 7, 19, 16, 12, 14, 21, 15, 13, 6, 2, 20, 9, 26, 28, 5, 10, 8, 22, 27, 32, 25, 23, 30, 11, 31, 36, 1, 24, 17, 34, 37, 33, 29, 35
41 cards 1677 4, 39, 23, 16, 18, 38, 15, 10, 28, 29, 32, 34, 30, 13, 33, 3, 5, 12, 14, 27, 31, 41, 21, 35, 11, 6, 9, 8, 17, 20, 2, 36, 26, 22, 40, 19, 1, 7, 24, 37, 25
43 cards 2002 11, 20, 23, 15, 27, 21, 16, 13, 12, 17, 2, 9, 25, 30, 26, 14, 10, 22, 24, 5, 19, 4, 3, 28, 7, 18, 8, 6, 33, 34, 38, 42, 41, 37, 39, 32, 29, 31, 36, 43, 35, 1, 40
47 cards 2492 13, 8, 12, 22, 24, 3, 17, 9, 23, 26, 38, 30, 7, 5, 28, 25, 20, 15, 21, 14, 18, 4, 16, 2, 41, 1, 36, 43, 46, 35, 34, 27, 19, 6, 11, 42, 32, 10, 33, 31, 29, 47, 37, 45, 39, 40, 44
53 cards 3185 12, 8, 14, 19, 9, 2, 22, 15, 17, 13, 16, 3, 6, 5, 11, 4, 7, 21, 10, 26, 24, 20, 27, 18, 28, 34, 23, 25, 32, 33, 29, 41, 30, 31, 40, 38, 44, 39, 49, 43, 35, 37, 36, 51, 42, 53, 1, 52, 50, 45, 46, 48, 47
59 cards 4393 13, 58, 56, 1, 57, 59, 55, 49, 18, 46, 51, 41, 23, 25, 39, 32, 5, 20, 14, 33, 30, 47, 40, 27, 8, 37, 9, 48, 36, 16, 43, 54, 50, 44, 22, 3, 26, 34, 31, 2, 11, 24, 15, 21, 29, 35, 52, 42, 19, 6, 28, 38, 4, 12, 45, 10, 17, 7, 53
61 cards 4846 24, 10, 55, 48, 27, 5, 50, 54, 39, 2, 7, 43, 11, 30, 36, 25, 29, 53, 57, 51, 60, 32, 44, 28, 26, 23, 20, 41, 9, 6, 14, 49, 13, 4, 19, 52, 3, 21, 42, 33, 22, 45, 15, 31, 46, 58, 56, 1, 47, 18, 40, 8, 12, 16, 17, 38, 34, 59, 61, 37, 35
67 cards 5695 11, 43, 39, 10, 16, 18, 48, 7, 29, 14, 13, 38, 6, 60, 58, 55, 49, 52, 51, 15, 31, 24, 34, 19, 3, 17, 25, 36, 4, 12, 20, 57, 50, 42, 32, 28, 21, 9, 23, 33, 30, 45, 26, 27, 22, 41, 8, 2, 40, 5, 35, 44, 46, 37, 47, 64, 54, 61, 53, 67, 59, 66, 1, 63, 62, 56, 65
71 cards 6834 3, 18, 6, 16, 12, 17, 25, 15, 2, 9, 24, 31, 27, 19, 32, 30, 14, 11, 8, 34, 37, 43, 50, 56, 21, 46, 54, 47, 26, 10, 23, 35, 38, 42, 33, 13, 20, 4, 36, 29, 22, 5, 7, 48, 39, 44, 28, 40, 57, 41, 55, 62, 58, 53, 49, 59, 51, 52, 45, 70, 65, 67, 60, 63, 64, 69, 61, 71, 66, 1, 68
73 cards 7203 11, 13, 6, 23, 47, 16, 57, 51, 31, 54, 15, 45, 35, 17, 3, 43, 46, 34, 2, 62, 29, 4, 37, 21, 52, 56, 60, 39, 14, 38, 24, 8, 10, 19, 30, 40, 22, 49, 5, 28, 48, 41, 12, 58, 61, 25, 55, 33, 63, 44, 26, 7, 36, 9, 20, 59, 1, 71, 64, 73, 67, 53, 42, 68, 32, 50, 18, 72, 66, 69, 65, 27, 70
79 cards 8781 4, 17, 7, 14, 13, 15, 16, 28, 20, 36, 5, 25, 30, 9, 11, 2, 3, 31, 26, 6, 18, 32, 19, 34, 27, 41, 38, 35, 39, 33, 37, 45, 46, 51, 47, 44, 22, 12, 23, 21, 29, 10, 24, 8, 40, 43, 42, 53, 61, 68, 60, 57, 56, 58, 48, 52, 55, 50, 49, 54, 59, 75, 67, 79, 66, 1, 76, 64, 62, 71, 65, 63, 74, 78, 77, 72, 70, 69, 73
83 cards 9938 8, 52, 18, 19, 25, 62, 34, 49, 43, 27, 22, 66, 40, 17, 51, 41, 55, 24, 42, 16, 7, 5, 36, 9, 35, 50, 30, 63, 69, 32, 12, 47, 78, 83, 45, 54, 64, 3, 10, 59, 48, 13, 68, 75, 82, 80, 72, 76, 29, 31, 2, 26, 4, 37, 33, 53, 46, 44, 21, 38, 74, 70, 11, 65, 15, 20, 58, 56, 23, 39, 57, 6, 28, 14, 67, 71, 61, 60, 77, 73, 1, 79, 81
89 cards 11802 10, 31, 56, 51, 30, 73, 25, 32, 8, 27, 34, 57, 20, 45, 50, 23, 6, 39, 15, 7, 47, 53, 49, 13, 44, 24, 41, 48, 46, 40, 17, 2, 16, 36, 58, 43, 18, 71, 66, 3, 9, 74, 79, 38, 42, 33, 14, 35, 5, 59, 11, 54, 65, 64, 29, 28, 19, 4, 26, 69, 60, 37, 1, 88, 22, 55, 52, 62, 85, 83, 76, 77, 72, 70, 81, 87, 84, 80, 12, 75, 67, 61, 63, 21, 68, 78, 89, 86, 82
97 cards 15008 42, 6, 39, 10, 12, 29, 20, 64, 60, 68, 65, 59, 61, 66, 57, 58, 56, 78, 70, 74, 67, 71, 54, 55, 53, 62, 40, 52, 35, 45, 32, 25, 37, 26, 2, 77, 80, 82, 72, 79, 73, 13, 5, 27, 3, 36, 4, 44, 47, 41, 22, 18, 33, 11, 48, 51, 14, 21, 24, 46, 31, 63, 49, 16, 43, 9, 50, 34, 30, 19, 38, 7, 8, 23, 15, 17, 28, 83, 76, 86, 69, 75, 89, 81, 97, 85, 92, 93, 96, 87, 90, 91, 94, 1, 84, 88, 95
42, 3, 39, 10, 12, 29, 20, 64, 60, 68, 65, 59, 61, 66, 57, 58, 56, 78, 70, 74, 67, 71, 54, 55, 53, 62, 40, 52, 35, 45, 32, 25, 37, 26, 2, 77, 80, 82, 72, 79, 73, 13, 6, 27, 5, 36, 4, 44, 47, 41, 22, 18, 33, 11, 48, 51, 14, 21, 24, 46, 31, 63, 49, 16, 43, 9, 50, 34, 30, 19, 38, 7, 8, 23, 15, 17, 28, 83, 76, 86, 69, 75, 89, 81, 97, 85, 92, 93, 96, 87, 90, 91, 94, 1, 84, 88, 95


The following noteworthy solutions were received after the contest ended.

Problem Score Solver Date Solution
43 cards 2009 Tomas Rokicki
Palo Alto, California, United States
15 Feb 2011 16:16 12, 28, 13, 21, 26, 11, 15, 22, 2, 4, 20, 18, 23, 9, 24, 7, 27, 3, 16, 14, 25, 5, 8, 6, 17, 30, 19, 10, 33, 34, 38, 42, 41, 37, 39, 32, 29, 31, 36, 43, 35, 1, 40
61 cards 4858 Tomas Rokicki
Palo Alto, California, United States
15 Feb 2011 01:31 4, 54, 7, 25, 28, 17, 35, 42, 15, 31, 46, 51, 1, 56, 58, 21, 47, 2, 37, 9, 3, 12, 49, 43, 19, 50, 36, 30, 8, 38, 23, 33, 13, 24, 20, 41, 16, 27, 45, 39, 11, 6, 52, 14, 29, 34, 10, 55, 22, 40, 44, 60, 32, 48, 18, 5, 59, 26, 61, 57, 53
71 cards 6847 Hugo Pfoertner
Munich, Germany
25 Feb 2011 18:43 5, 34, 6, 36, 31, 33, 18, 19, 24, 27, 4, 37, 43, 50, 56, 9, 32, 17, 25, 26, 30, 2, 15, 28, 13, 46, 54, 47, 8, 20, 3, 16, 12, 7, 10, 14, 21, 11, 42, 38, 35, 23, 22, 48, 39, 44, 29, 40, 57, 41, 55, 62, 58, 53, 49, 59, 51, 52, 45, 70, 65, 67, 60, 63, 64, 69, 61, 71, 66, 1, 68
73 cards 7212 Hugo Pfoertner
Munich, Germany
25 Feb 2011 06:37 20, 24, 7, 25, 40, 26, 39, 28, 19, 21, 18, 44, 30, 5, 46, 3, 10, 33, 22, 4, 8, 38, 14, 15, 12, 61, 58, 35, 41, 32, 11, 45, 34, 17, 36, 42, 49, 47, 52, 43, 2, 27, 16, 23, 13, 62, 1, 71, 64, 56, 6, 57, 48, 37, 9, 63, 31, 50, 60, 55, 59, 53, 68, 66, 73, 67, 69, 72, 54, 65, 51, 29, 70
89 cards 11810 Hugo Pfoertner
Munich, Germany
16 Feb 2011 11:44 12, 57, 8, 42, 31, 52, 67, 27, 23, 44, 3, 19, 47, 64, 58, 68, 18, 49, 30, 38, 66, 53, 45, 48, 56, 13, 20, 15, 26, 14, 51, 5, 54, 63, 72, 70, 24, 35, 9, 2, 33, 28, 34, 43, 6, 4, 65, 32, 55, 36, 25, 60, 21, 41, 39, 10, 7, 50, 17, 16, 22, 69, 61, 74, 75, 59, 40, 62, 11, 73, 76, 46, 37, 29, 78, 71, 88, 80, 84, 77, 86, 83, 81, 82, 87, 79, 89, 1, 85
89 cards 11829 Hugo Pfoertner
Munich, Germany
21 Feb 2011 08:59 34, 39, 19, 43, 58, 57, 20, 41, 31, 6, 67, 18, 14, 46, 48, 12, 37, 33, 26, 17, 36, 32, 49, 29, 50, 8, 38, 65, 61, 55, 54, 63, 5, 13, 59, 47, 27, 62, 35, 30, 51, 74, 75, 21, 28, 9, 4, 69, 56, 66, 42, 7, 23, 10, 60, 44, 52, 40, 64, 68, 2, 45, 3, 72, 70, 24, 25, 16, 11, 73, 76, 15, 22, 53, 78, 71, 88, 80, 84, 77, 86, 83, 81, 82, 87, 79, 89, 1, 85
89 cards 11840 Hugo Pfoertner
Munich, Germany
26 Feb 2015 16:47 29, 13, 45, 59, 65, 56, 6, 33, 36, 22, 51, 9, 35, 19, 12, 62, 39, 21, 10, 40, 53, 63, 54, 32, 66, 64, 49, 55, 17, 26, 2, 46, 7, 42, 8, 52, 43, 34, 23, 50, 57, 14, 28, 69, 18, 48, 20, 31, 30, 67, 5, 4, 61, 58, 16, 47, 60, 41, 25, 75, 74, 38, 3, 72, 70, 24, 68, 27, 11, 73, 76, 15, 37, 44, 78, 71, 88, 80, 84, 77, 86, 83, 81, 82, 87, 79, 89, 1, 85