Results for N = 9, Diameter = 6     [Back to List of Problem Classes]

using a Snake Viewer written by Markus Sigg

L=192 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth Sep 19 18:34:02
L=192 found by Moritz Franckenstein Oct 23 12:52:19
L=192 found by Markus Sigg 2008 Apr 27
L=192 found by Markus Sigg 2008 Apr 27
L=190 found by Hugo Pfoertner and Markus Sigg 2008 May 15
L=190 found by Hugo Pfoertner 2012 Jun 4
L=186 found by Moritz Franckenstein Oct 22 19:49:02
L=186 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Apr 26
L=184 found by Markus Sigg (program) and Hugo Pfoertner (number-crunching and post-processing) 2007 Aug 9
L=183 found by Markus Sigg (program) and Hugo Pfoertner (number-crunching and post-processing) 2007 Aug 13
L=183 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth Sep 11 09:19:53
L=183 found by Hugo Pfoertner 2015 Dec 10
L=182 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Apr 27
L=179 found by Moritz Franckenstein Oct 22 19:38:07
L=179 found by Hugo Pfoertner and Markus Sigg 2008 Apr 11 (symmetric)
L=178 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Apr 26
L=177 found by Vadim Trofimov Sep 1 17:17:01 (symmetric)
L=177 found by Hugo Pfoertner and Markus Sigg 2008 Mar 1
L=177 found by Markus Sigg 2008 Mar 25
L=177 found by Hugo Pfoertner and Markus Sigg 2008 Apr 26 (symmetric)
L=177 found by Hugo Pfoertner and Markus Sigg 2008 Apr 27
L=177 found by Hugo Pfoertner and Markus Sigg 2008 Apr 27
L=176 found by Michael van Fondern Oct 23 17:43:44
L=176 found by Markus Sigg and Hugo Pfoertner 2008 Apr 21
L=176 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Apr 26
L=176 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Apr 26
L=175 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Mar 12
L=175 found by Hugo Pfoertner and Markus Sigg 2008 Apr 26 (symmetric)
L=175 found by Hugo Pfoertner and Markus Sigg 2008 Apr 27
L=174 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Mar 13
L=174 found by Hugo Pfoertner and Markus Sigg 2008 Apr 26
L=174 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Apr 26
L=174 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Apr 26
L=174 found by Hugo Pfoertner and Markus Sigg 2008 Apr 27
L=174 found by Hugo Pfoertner 2011 Nov 29
L=173 found by Hugo Pfoertner and Markus Sigg 2008 Apr 10 (symmetric)
L=173 found by Hugo Pfoertner and Markus Sigg 2008 Apr 10 (symmetric)
L=173 found by Hugo Pfoertner and Markus Sigg 2008 Apr 26 (symmetric)
L=173 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Apr 26
L=171 found by Hugo Pfoertner and Markus Sigg 2008 Apr 26 (symmetric)
L=170 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Mar 11
L=169 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth Sep 3 08:53:11
L=169 found by Michael van Fondern Oct 16 20:21:11
L=169 found by Markus Sigg Nov 20 21:03:38 (symmetric)
L=169 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Apr 26
L=168 found by Markus Sigg Nov 20 20:55:26
L=168 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Apr 26
L=167 found by Vadim Trofimov Aug 25 17:32:25 (symmetric)
L=167 found by Klaus Nagel & Hugo Pfoertner & Rainer Rosenthal Sep 27 21:13:55
L=166 found by Moritz Franckenstein Oct 13 12:50:47
L=166 found by Michael van Fondern Oct 15 20:47:11
L=166 found by Boris von Loesch Nov 20 18:40:53
L=165 found by Michael van Fondern Sep 28 05:51:26
L=164 found by Mark Beyleveld Sep 4 18:44:42
L=164 found by Michael van Fondern Sep 27 16:49:50
L=163 found by Mark Beyleveld Sep 2 20:58:54
L=163 found by Markus Sigg Nov 16 07:34:15 (symmetric)
L=162 found by Mark Beyleveld Sep 2 20:58:40
L=162 found by Yirmy Yasovsky Oct 30 22:47:13
L=161 found by Markus Sigg Sep 6 12:57:22 (symmetric)
L=161 found by Yirmy Yasovsky Oct 5 22:38:37
L=160 found by Yirmy Yasovsky Sep 11 21:02:04
L=160 found by Fred Mellender Oct 12 20:40:19
L=160 found by Moritz Franckenstein Oct 13 07:42:00
L=159 found by Mark Beyleveld Sep 2 20:57:37
L=159 found by Moritz Franckenstein Sep 17 17:11:33
L=158 found by Mark Beyleveld Sep 2 20:56:17
L=158 found by Mark Gordon Sep 10 06:16:46
L=158 found by Fred Mellender Oct 5 18:29:07
L=158 found by Hermann Jurksch 2012 Sep 13 (closed)
L=157 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth Aug 28 19:46:59
L=157 found by Fred Mellender Oct 5 18:33:01
L=157 found by Joshua Zucker Oct 7 15:56:40
L=156 found by Yirmy Yasovsky Sep 8 22:46:03
L=155 found by Honza Stola Aug 30 17:49:23 (symmetric)
L=155 found by Michael van Fondern Sep 27 05:35:16
L=154 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth Aug 26 17:45:20
L=154 found by Michael van Fondern Sep 25 05:43:20
L=153 found by Moritz Franckenstein Sep 17 09:30:07
L=153 found by Ivan Kazmenko Sep 25 22:07:53 (symmetric)
L=152 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth Aug 24 09:55:02
L=152 found by Boris von Loesch Nov 15 20:25:26
L=151 found by Kevin Burfitt Aug 30 02:06:41
L=151 found by Jesse Kolman Nov 19 05:44:07
L=150 found by James J Youlton Jr Aug 27 12:27:25
L=150 found by Michael van Fondern Sep 24 16:13:13
L=149 found by James J Youlton Jr Aug 27 12:26:26
L=149 found by Joshua Zucker Sep 18 08:16:02
L=149 found by Ivan Kazmenko Sep 23 21:20:18 (symmetric)
L=148 found by Hermann Jurksch 2012 Sep 13 (closed)
L=147 found by James J Youlton Jr Aug 27 12:25:25
L=147 found by Fred Mellender Sep 15 20:45:55
L=146 found by Markus Sigg Aug 29 21:17:21
L=145 found by Fred Mellender Aug 26 12:30:43
L=145 found by Kevin Burfitt Aug 29 13:02:25
L=145 found by Daumilas Ardickas Aug 30 16:57:52
L=145 found by Ivan Kazmenko Sep 9 21:59:14 (symmetric)
L=145 found by Michael van Fondern Sep 22 15:00:30
L=144 found by Yirmy Yasovsky Sep 6 20:49:14
L=143 found by Mark Beyleveld Aug 22 00:46:26
L=143 found by Yirmy Yasovsky Sep 4 20:21:35
L=143 found by Jesse Kolman Nov 19 05:30:38
L=142 found by Mark Beyleveld Aug 22 00:45:52
L=142 found by Hermann Jurksch 2012 Sep 11 (closed)
L=141 found by Michael Collier Oct 27 04:52:26
L=140 found by James Buddenhagen Sep 11 23:47:43
L=140 found by Juha Saukkola Nov 14 09:59:54
L=138 found by Joshua Zucker Sep 18 08:12:22
L=138 found by Michael J Gayle Nov 11 00:37:15
L=136 found by James J Youlton Jr Aug 27 03:21:56
L=136 found by Michael van Fondern Sep 17 11:19:06
L=136 found by Boris von Loesch Nov 14 16:11:09
L=135 found by James J Youlton Jr Aug 27 03:21:20
L=135 found by Boris von Loesch Nov 14 16:02:28
L=134 found by James J Youlton Jr Aug 27 03:20:36
L=133 found by James J Youlton Jr Aug 27 03:20:00
L=132 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth Aug 21 06:48:17
L=132 found by QfwfQ Oct 5 09:20:38
L=132 found by Juha Saukkola Oct 26 07:35:53
L=132 found by Hermann Jurksch 2012 Sep 2 (closed)
L=131 found by Moritz Franckenstein Sep 15 07:45:59
L=131 found by Jesse Kolman Nov 19 05:55:11
L=129 found by Kevin Burfitt Aug 25 22:58:35
L=129 found by Michael van Fondern Sep 16 07:15:59
L=128 found by Yirmy Yasovsky Aug 22 09:25:50
L=128 found by G.R.A.20 Problem Solving Sep 4 17:13:00
L=127 found by Kevin Burfitt Aug 24 12:04:46
L=127 found by Ivan Kazmenko Sep 8 22:12:26 (symmetric)
L=126 found by James J Youlton Jr Aug 24 03:15:17
L=126 found by Moritz Franckenstein Sep 15 07:25:42
L=126 found by Hermann Jurksch 2012 Aug 26 (closed) (symmetric)
L=125 found by Yirmy Yasovsky Aug 21 20:54:27
L=125 found by James Buddenhagen Aug 22 02:27:37
L=125 found by Michael van Fondern Sep 14 18:41:05
L=124 found by Kevin Burfitt Aug 23 13:40:52
L=123 found by Vadim Trofimov Aug 24 22:05:04 (symmetric)
L=121 found by G.R.A.20 Problem Solving Sep 4 16:53:57
L=121 found by Moritz Franckenstein Sep 11 08:00:51
L=121 found by Jesse Kolman Nov 12 06:56:53
L=120 found by Olivier Buffet & Dmitry Kamenetsky Sep 2 16:01:45
L=120 found by Moritz Franckenstein Sep 7 15:20:37
L=120 found by Ivan Kazmenko Sep 13 21:17:10 (closed) (symmetric)
L=120 found by Joshua Zucker Sep 17 23:38:17
L=120 found by Jesse Kolman Nov 12 06:56:35
L=120 found by Jesse Kolman Nov 12 06:56:46
L=119 found by Moritz Franckenstein Sep 5 15:27:13
L=119 found by Moritz Franckenstein Sep 6 07:14:38
L=119 found by Jesse Kolman Nov 12 06:56:25
L=118 found by Klaus Nagel & Hugo Pfoertner & Rainer Rosenthal Aug 28 13:04:46
L=118 found by Jesse Kolman Nov 12 06:55:53
L=118 found by Jesse Kolman Nov 12 06:56:08
L=117 found by Moritz Franckenstein Sep 5 10:26:45
L=117 found by Joshua Zucker Sep 17 22:22:25
L=117 found by Jesse Kolman Nov 12 06:55:33
L=116 found by Markus Sigg Aug 23 21:38:14
L=116 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth Oct 26 20:58:25
L=116 found by Jesse Kolman Nov 12 06:55:16
L=115 found by Moritz Franckenstein Sep 5 08:05:43
L=115 found by Jesse Kolman Nov 12 06:55:02
L=115 found by Alexander Fischer Nov 19 11:32:09
L=114 found by Jesse Kolman Nov 12 06:54:51
L=113 found by Moritz Franckenstein Sep 3 10:30:59
L=113 found by Jesse Kolman Nov 12 06:52:50
L=113 found by Jesse Kolman Nov 12 06:54:37
L=112 found by Joshua Zucker Aug 27 20:26:57
L=112 found by Jesse Kolman Nov 12 06:52:31
L=112 found by Jesse Kolman Nov 12 06:54:18
L=111 found by Klaus Nagel & Hugo Pfoertner & Rainer Rosenthal Aug 21 06:31:14
L=111 found by Jesse Kolman Nov 12 06:52:15
L=110 found by Jesse Kolman Nov 12 06:51:53
L=109 found by Mark Mammel Sep 5 13:16:27
L=109 found by Juergen Winterberg Nov 8 23:44:05
L=109 found by Jesse Kolman Nov 12 06:51:43
L=108 found by QfwfQ Sep 27 09:19:39
L=108 found by Mike White Nov 18 03:00:51
L=107 found by Sebastian Mingramm Sep 11 08:58:14
L=106 found by Joshua Zucker Aug 27 14:38:16
L=106 found by Olivier Buffet & Dmitry Kamenetsky Aug 28 01:14:25
L=106 found by G.R.A.20 Problem Solving Aug 30 20:33:56
L=106 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth Sep 30 13:27:18
L=106 found by Brian Adams Nov 7 01:46:49
L=106 found by Jesse Kolman Nov 12 06:51:01
L=104 found by Mark Gordon Sep 8 19:46:06
L=104 found by Jesse Kolman Nov 12 06:50:35
L=103 found by Jesse Kolman Nov 12 06:50:26
L=102 found by Olivier Buffet & Dmitry Kamenetsky Aug 23 22:21:54
L=102 found by Vadim Trofimov Aug 24 17:11:37 (same as Aug 23 22:21:54)
L=102 found by Moritz Franckenstein Aug 29 12:03:49 (same as Aug 23 22:21:54)
L=102 found by SuperRock Sep 6 03:38:34 (same as Aug 23 22:21:54)
L=102 found by Ivan Kazmenko Sep 13 20:23:32 (closed) (symmetric)
L=102 found by Tobias Baumann Nov 16 09:24:02 (same as Aug 23 22:21:54)
L=102 found by Mike White Nov 17 23:36:39 (same as Aug 23 22:21:54)
L=101 found by Markus Sigg Aug 20 19:06:25
L=101 found by Jesse Kolman Nov 12 07:12:19
L=100 found by Steve Trevorrow Oct 7 07:51:11
L=100 found by Jesse Kolman Nov 7 06:48:14
L= 99 found by G.R.A.20 Problem Solving Aug 29 13:51:19
L= 99 found by Juergen Winterberg Oct 29 17:54:01
L= 98 found by Mark Mammel Aug 21 12:35:22
L= 98 found by Daumilas Ardickas Aug 24 19:42:43
L= 98 found by Henry Song Sep 21 16:08:32
L= 97 found by James J Youlton Jr Sep 3 01:59:23
L= 97 found by Jesse Kolman Nov 12 06:49:53
L= 97 found by Jesse Kolman Nov 12 07:06:34
L= 96 found by Moritz Franckenstein Aug 27 13:51:28
L= 96 found by Frank Buss Sep 3 15:35:43 (same as Aug 27 13:51:28)
L= 96 found by Polegenko Vladimir Nov 7 13:16:50 (same as Aug 27 13:51:28)
L= 96 found by Tobias Baumann Nov 14 09:16:56 (same as Aug 27 13:51:28)
L= 96 found by Mike White Nov 17 09:13:54 (same as Aug 27 13:51:28)
L= 95 found by Gregor Heitkamp Sep 21 20:55:51
L= 93 found by G.R.A.20 Problem Solving Aug 26 00:08:56
L= 93 found by Johan Stang Sep 22 22:29:06
L= 93 found by Jesse Kolman Nov 12 06:49:35
L= 92 found by Johan Stang Sep 22 22:28:18
L= 92 found by Jesse Kolman Nov 12 06:49:20
L= 92 found by Jesse Kolman Nov 12 07:11:55
L= 91 found by G.R.A.20 Problem Solving Aug 26 00:06:04
L= 91 found by Jesse Kolman Nov 12 07:11:13
L= 89 found by Sabur Zaheed (AIUB) Aug 21 17:13:32
L= 89 found by Fred Mellender Aug 22 02:13:18
L= 89 found by Joshua Zucker Aug 22 14:01:53
L= 88 found by Sabur Zaheed (AIUB) Aug 21 17:12:38
L= 88 found by Steve Trevorrow Oct 6 23:28:01
L= 88 found by Jesse Kolman Nov 12 07:10:31
L= 87 found by Sebastian Mingramm Sep 6 06:19:45
L= 87 found by Jesse Kolman Nov 12 06:49:03
L= 85 found by Jesse Kolman Nov 7 18:12:01
L= 85 found by Jesse Kolman Nov 12 06:48:53
L= 85 found by Jesse Kolman Nov 12 07:06:41
L= 84 found by Jesse Kolman Nov 5 06:50:45
L= 83 found by Sebastian Mingramm Sep 5 19:39:50
L= 83 found by Jesse Kolman Nov 12 07:10:10
L= 82 found by Sabur Zaheed (AIUB) Aug 21 17:10:46
L= 82 found by Joshua Zucker Aug 22 12:55:05
L= 82 found by Moritz Franckenstein Aug 27 13:42:52
L= 81 found by Jesse Kolman Nov 12 06:48:12
L= 80 found by Frank Buss Aug 24 14:12:44
L= 80 found by Sebastian Mingramm Sep 5 08:49:52
L= 80 found by Brad Smith Oct 28 20:28:22
L= 79 found by Juha Saukkola Aug 29 09:46:56
L= 79 found by Gregory Horvath Nov 5 17:27:05
L= 78 found by Gregory Horvath Nov 5 17:26:48
L= 77 found by Joshua Zucker Aug 22 05:29:20
L= 77 found by David Rendo Rodriguez Sep 11 09:51:21
L= 77 found by Brad Smith Oct 15 22:04:15 (same as Sep 11 09:51:21)
L= 77 found by Gregory Horvath Nov 5 17:26:39
L= 76 found by QfwfQ Sep 20 08:42:12
L= 76 found by Gregory Horvath Nov 5 17:26:10
L= 75 found by Gregory Horvath Nov 5 17:24:33
L= 75 found by Gregory Horvath Nov 5 17:26:00
L= 75 found by Jesse Kolman Nov 12 06:43:51
L= 75 found by Jesse Kolman Nov 12 06:48:01
L= 75 found by Jesse Kolman Nov 12 07:09:53
L= 74 found by Fironov Sergey Sep 6 19:08:11
L= 74 found by Gregory Horvath Nov 5 17:25:24
L= 74 found by Jesse Kolman Nov 12 06:43:17
L= 74 found by Jesse Kolman Nov 12 06:43:25
L= 73 found by Evgeni Lukin Oct 30 15:15:06
L= 73 found by Gregory Horvath Nov 5 17:24:25
L= 73 found by Gregory Horvath Nov 5 17:25:06
L= 73 found by Gregory Horvath Nov 5 17:25:15
L= 73 found by Jesse Kolman Nov 12 06:47:49
L= 72 found by Markus Sigg Aug 21 08:54:47
L= 72 found by Gregory Horvath Nov 5 17:24:13
L= 72 found by Jesse Kolman Nov 12 07:06:51
L= 71 found by Gregory Horvath Nov 5 17:24:45
L= 71 found by Jesse Kolman Nov 12 06:47:34
L= 71 found by Jesse Kolman Nov 12 06:47:39
L= 70 found by Hyung-Sul Kim Oct 29 07:02:47
L= 69 found by David Rendo Rodriguez Sep 11 08:51:45
L= 69 found by Gregory Horvath Nov 5 17:23:54
L= 68 found by Sebastian Mingramm Sep 5 06:28:05
L= 68 found by Gregory Horvath Nov 5 17:23:39
L= 68 found by Jesse Kolman Nov 12 06:40:13
L= 67 found by Juergen Winterberg Oct 27 14:23:02
L= 67 found by Gregory Horvath Nov 5 17:23:16
L= 67 found by Gregory Horvath Nov 5 17:23:29
L= 67 found by Jesse Kolman Nov 12 06:39:58
L= 66 found by Antti Ahti Sep 23 07:34:37
L= 66 found by Gregory Horvath Nov 5 17:22:43
L= 66 found by Gregory Horvath Nov 5 17:22:54
L= 66 found by Gregory Horvath Nov 5 17:23:02
L= 65 found by Gregory Horvath Nov 5 17:22:34
L= 65 found by Jesse Kolman Nov 12 06:39:48
L= 64 found by Gregory Horvath Nov 5 17:22:18
L= 63 found by Gregory Horvath Nov 5 17:22:07
L= 62 found by Gregory Horvath Nov 5 17:22:00
L= 62 found by Jesse Kolman Nov 12 07:06:55
L= 61 found by Gregory Horvath Nov 5 17:21:50
L= 60 found by Juha Saukkola Aug 24 10:18:09
L= 60 found by Juha Saukkola Aug 24 10:18:49
L= 59 found by Gregory Horvath Nov 5 17:21:41
L= 58 found by Leonid Shishlo Aug 21 23:41:29
L= 58 found by Peter Soederman Aug 25 11:15:57
L= 58 found by Henry Song Sep 16 15:18:55
L= 57 found by Gregory Horvath Nov 5 17:21:31
L= 57 found by Jesse Kolman Nov 12 07:07:02
L= 56 found by Gregor Heitkamp Sep 12 22:04:05
L= 54 found by Ivan Kazmenko Sep 21 00:22:09 (closed) (symmetric)
L= 54 found by Gregory Horvath Nov 5 17:20:56
L= 53 found by Gregory Horvath Nov 5 17:20:41
L= 52 found by Gregory Horvath Nov 5 17:18:26
L= 51 found by Gregory Horvath Nov 5 17:19:04
L= 50 found by David Rendo Rodriguez Sep 8 08:52:58
L= 50 found by Gregory Horvath Nov 5 17:18:54
L= 48 found by Magnus Jansson Oct 16 23:19:51
L= 48 found by Gregory Horvath Nov 5 17:17:23
L= 47 found by Gregory Horvath Nov 5 17:16:44
L= 46 found by Gregory Horvath Nov 5 17:16:33
L= 45 found by Gregory Horvath Nov 5 17:16:23
L= 42 found by Gregory Horvath Nov 5 17:16:15
L= 38 found by Gregory Horvath Nov 5 17:16:07
L= 37 found by Gregory Horvath Nov 5 17:15:54
L= 36 found by Gregory Horvath Nov 5 17:15:47
L= 35 found by Gregory Horvath Nov 5 17:15:35
L= 34 found by Gregory Horvath Nov 5 17:15:28
L= 33 found by Gregory Horvath Nov 5 17:15:02
L= 32 found by Gregory Horvath Nov 5 17:14:48
L= 31 found by Magnus Jansson Aug 28 12:46:33
L= 30 found by Gregory Horvath Nov 5 17:11:21
L= 28 found by Adam Panagos Aug 27 19:39:06
L= 27 found by Magnus Jansson Aug 28 12:46:14
L= 27 found by Gregory Horvath Nov 5 17:13:51
L= 26 found by Magnus Jansson Aug 28 12:46:02
L= 26 found by Gregory Horvath Nov 5 17:13:44
L= 25 found by Magnus Jansson Aug 28 12:45:54
L= 24 found by Leonid Shishlo Aug 21 19:41:56
L= 24 found by Magnus Jansson Aug 28 12:45:48
L= 24 found by Gregory Horvath Nov 5 17:13:16
L= 24 found by Gregory Horvath Nov 5 17:13:36
L= 23 found by Leonid Shishlo Aug 21 19:41:39
L= 23 found by Magnus Jansson Aug 28 12:45:40
L= 23 found by Gregory Horvath Nov 5 17:13:10
L= 23 found by Gregory Horvath Nov 5 17:13:30
L= 22 found by Leonid Shishlo Aug 21 19:41:19
L= 22 found by Magnus Jansson Aug 28 12:45:33
L= 22 found by Gregory Horvath Nov 5 17:12:46
L= 22 found by Gregory Horvath Nov 5 17:13:03
L= 21 found by Magnus Jansson Aug 28 12:44:48
L= 20 found by Leonid Shishlo Aug 21 19:41:10
L= 19 found by Leonid Shishlo Aug 21 19:36:17
L= 19 found by Gregory Horvath Nov 5 17:12:35
L= 18 found by Leonid Shishlo Aug 21 19:40:55
L= 18 found by Joshua Zucker Oct 19 00:52:47 (closed) (symmetric)
L= 18 found by Gregory Horvath Nov 5 17:12:22
L= 18 found by Gregory Horvath Nov 5 17:12:30
L= 17 found by Gregory Horvath Nov 5 17:12:12 (symmetric)
L= 16 found by Leonid Shishlo Aug 21 19:40:39
L= 15 found by Leonid Shishlo Aug 21 19:39:54
L= 14 found by Leonid Shishlo Aug 21 19:37:44
L= 14 found by Gregory Horvath Nov 5 17:11:59 (symmetric)
L= 9 found by Gregory Horvath Nov 5 17:11:50 (symmetric)
L= 6 found by Magnus Jansson Aug 24 16:59:15 (symmetric)
L= 6 found by Brad Smith Sep 25 22:32:09 (symmetric) (same as Aug 24 16:59:15)
L= 6 found by test Oct 24 11:47:33 (symmetric) (same as Aug 24 16:59:15)