### using a Snake Viewer written by Markus Sigg

L=269 found by Hugo Pfoertner and Markus Sigg 2008 May 2 (symmetric)

L=269 found by Hugo Pfoertner and Markus Sigg 2008 May 2 (symmetric)

L=269 found by Hugo Pfoertner and Markus Sigg 2008 May 2 (symmetric)

L=269 found by Hermann Jurksch 2011 Jun 15 (symmetric)

L=269 found by Hugo Pfoertner 2011 Oct 3

L=269 found by Hermann Jurksch 2011 Oct 11

L=269 found by Hermann Jurksch 2011 Nov 14

L=269 found by Markus Sigg 2017 Dec 1 (symmetric)

L=268 found by Hugo Pfoertner 2011 Oct 3

L=260 found by Markus Sigg 2008 Apr 30

L=260 found by Hugo Pfoertner and Markus Sigg 2008 Jun 1

L=260 found by Hugo Pfoertner and Markus Sigg 2008 Jun 1

L=258 found by Hugo Pfoertner using programs written by Markus Sigg and Klaus Nagel 2008 Mar 3

L=256 found by Hugo Pfoertner and Markus Sigg 2008 May 19

L=255 found by Hugo Pfoertner and Markus Sigg 2008 May 18

**L=252 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Oct 29 14:50:40**

L=251 found by Markus Sigg 2008 Jan 30 (symmetric)

L=249 found by Markus Sigg (program) and Hugo Pfoertner (number-crunching) 2007 Aug 8 (symmetric)

**L=247 found by Michael van Fondern 2007 Nov 13 18:52:07**

**L=246 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Oct 29 12:28:47**

**L=245 found by Vadim Trofimov 2007 Sep 2 19:08:22 (symmetric)**

**L=245 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Oct 29 12:12:22**

**L=245 found by Michael van Fondern 2007 Nov 6 21:08:45**

L=245 found by Hugo Pfoertner and Markus Sigg 2008 Mar 1 (symmetric)

L=245 found by Hugo Pfoertner and Markus Sigg 2008 Apr 26 (symmetric)

L=245 found by Hugo Pfoertner and Markus Sigg 2008 Apr 26 (symmetric)

L=245 found by Hugo Pfoertner and Markus Sigg 2008 Apr 26 (symmetric)

L=245 found by Hugo Pfoertner and Markus Sigg 2008 Apr 26 (symmetric)

L=245 found by Hugo Pfoertner and Markus Sigg 2008 Apr 26 (symmetric)

L=243 found by Hugo Pfoertner 2012 May 23

**L=242 found by Moritz Franckenstein 2007 Oct 31 07:52:13**

**L=241 found by Moritz Franckenstein 2007 Oct 30 08:16:23**

**L=240 found by Yirmy Yasovsky 2007 Nov 20 21:17:50**

**L=239 found by Michael van Fondern 2007 Nov 4 07:32:23**

**L=238 found by Moritz Franckenstein 2007 Sep 17 16:59:24**

**L=238 found by Michael van Fondern 2007 Oct 18 16:34:38**

**L=236 found by Yirmy Yasovsky 2007 Oct 23 21:26:41**

**L=236 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Oct 29 11:38:02**

**L=235 found by Markus Sigg 2007 Sep 9 16:59:38**

**L=234 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Sep 21 19:56:13**

**L=233 found by Yirmy Yasovsky 2007 Sep 12 19:33:53**

L=233 found by Hugo Pfoertner and Markus Sigg 2008 Apr 26 (symmetric)

**L=231 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Sep 21 07:26:19**

**L=231 found by Ivan Kazmenko 2007 Sep 25 22:06:47 (symmetric)**

**L=230 found by Moritz Franckenstein 2007 Sep 17 09:17:16**

**L=229 found by Mark Gordon 2007 Sep 10 06:11:21**

**L=229 found by Michael van Fondern 2007 Oct 16 20:21:15**

**L=229 found by Jesse Kolman 2007 Nov 19 06:23:44**

**L=225 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Sep 20 12:21:57**

**L=224 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Sep 11 09:56:10**

**L=224 found by Fred Mellender 2007 Sep 16 18:06:20**

**L=223 found by Mark Beyleveld 2007 Sep 5 20:00:16**

**L=222 found by Mark Beyleveld 2007 Sep 5 19:59:51**

**L=222 found by Michael van Fondern 2007 Oct 15 20:47:17**

**L=220 found by Yirmy Yasovsky 2007 Sep 11 21:07:28**

**L=220 found by Fred Mellender 2007 Sep 15 20:44:22**

**L=220 found by Klaus Nagel & Hugo Pfoertner & Rainer Rosenthal 2007 Nov 19 15:44:42**

L=220 found by Hermann Jurksch 2012 Sep 22 (closed)

**L=219 found by Michael van Fondern 2007 Sep 28 20:31:17**

**L=218 found by Klaus Nagel & Hugo Pfoertner & Rainer Rosenthal 2007 Nov 6 19:06:22**

**L=217 found by Vadim Trofimov 2007 Aug 26 09:47:37 (symmetric)**

**L=217 found by Joshua Zucker 2007 Sep 18 04:48:56**

**L=215 found by Mark Beyleveld 2007 Sep 5 19:14:42**

**L=214 found by Michael van Fondern 2007 Sep 27 16:50:10**

**L=213 found by Mark Beyleveld 2007 Sep 2 23:53:30**

**L=212 found by Mark Beyleveld 2007 Sep 2 23:53:13**

**L=212 found by Jesse Kolman 2007 Nov 19 06:13:00**

**L=211 found by Fred Mellender 2007 Sep 12 12:16:15**

**L=210 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Sep 7 10:48:13**

L=210 found by Hermann Jurksch 2012 Sep 14 (closed)

**L=209 found by Mark Beyleveld 2007 Sep 2 23:52:08**

**L=209 found by Ivan Kazmenko 2007 Sep 23 21:15:54 (symmetric)**

**L=208 found by Mark Beyleveld 2007 Sep 2 23:51:09**

**L=206 found by Fred Mellender 2007 Sep 2 19:03:25**

**L=203 found by James Buddenhagen 2007 Sep 13 20:54:59**

**L=200 found by Mark Beyleveld 2007 Sep 2 23:48:12**

**L=200 found by Michael van Fondern 2007 Sep 27 05:35:20**

**L=199 found by Mark Beyleveld 2007 Sep 2 23:47:49**

**L=199 found by Honza Stola 2007 Sep 3 10:15:05 (symmetric)**

**L=197 found by Markus Sigg 2007 Sep 4 20:01:13 (symmetric)**

**L=196 found by Yirmy Yasovsky 2007 Sep 8 22:49:58**

**L=195 found by Yirmy Yasovsky 2007 Sep 5 19:45:33**

**L=195 found by Michael van Fondern 2007 Sep 25 17:47:54**

**L=194 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Sep 6 20:47:28**

**L=194 found by Michael van Fondern 2007 Sep 25 05:43:24**

**L=191 found by Kevin Burfitt 2007 Aug 31 23:21:33**

**L=190 found by Mark Beyleveld 2007 Aug 22 00:49:37**

**L=189 found by Mark Beyleveld 2007 Aug 22 00:49:17**

**L=188 found by Michael van Fondern 2007 Sep 24 16:13:18**

**L=187 found by James J Youlton Jr 2007 Sep 1 16:37:35**

**L=186 found by Yirmy Yasovsky 2007 Aug 22 09:25:29**

**L=186 found by James J Youlton Jr 2007 Sep 1 16:06:33**

**L=186 found by Joshua Zucker 2007 Sep 18 04:36:41**

L=186 found by Hermann Jurksch 2012 Sep 2 (closed)

**L=185 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Sep 3 09:30:21**

**L=184 found by Boris von Loesch 2007 Nov 15 16:51:43**

**L=183 found by Jesse Kolman 2007 Nov 12 07:32:15**

**L=183 found by Jesse Kolman 2007 Nov 12 07:33:05**

**L=182 found by Jesse Kolman 2007 Nov 12 07:30:52**

**L=181 found by Jesse Kolman 2007 Nov 12 07:30:38**

**L=180 found by Honza Stola 2007 Aug 30 17:54:07**

**L=180 found by Michael van Fondern 2007 Sep 23 16:17:28**

**L=180 found by Jesse Kolman 2007 Nov 12 07:25:55**

**L=180 found by Jesse Kolman 2007 Nov 12 07:30:10**

L=180 found by Hermann Jurksch 2012 Sep 2 (closed)

**L=179 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Aug 24 12:45:27**

**L=179 found by Jesse Kolman 2007 Nov 12 07:25:45**

**L=179 found by Jesse Kolman 2007 Nov 12 07:28:24**

**L=178 found by Michael van Fondern 2007 Sep 22 15:00:34**

**L=178 found by Jesse Kolman 2007 Nov 12 07:25:30**

**L=178 found by Jesse Kolman 2007 Nov 12 07:26:47**

**L=178 found by Jesse Kolman 2007 Nov 12 07:27:55**

**L=177 found by Kevin Burfitt 2007 Aug 30 00:38:29**

**L=177 found by James Buddenhagen 2007 Sep 1 18:52:54**

**L=177 found by Jesse Kolman 2007 Nov 12 07:24:58**

**L=176 found by Juha Saukkola 2007 Nov 14 10:00:33**

**L=174 found by Joshua Zucker 2007 Sep 18 04:27:41**

**L=173 found by Ivan Kazmenko 2007 Sep 9 22:49:01 (symmetric)**

**L=173 found by Jesse Kolman 2007 Nov 12 07:24:44**

**L=173 found by Michael J Gayle 2007 Nov 18 18:44:32**

**L=172 found by Michael Collier 2007 Nov 7 22:46:47**

**L=171 found by James J Youlton Jr 2007 Aug 28 03:51:13**

**L=171 found by Markus Sigg 2007 Aug 29 21:21:59**

**L=170 found by James J Youlton Jr 2007 Aug 28 03:48:53**

**L=170 found by Michael van Fondern 2007 Sep 17 11:19:14**

**L=170 found by Juha Saukkola 2007 Oct 26 07:37:31**

L=170 found by Hermann Jurksch 2012 Aug 27 (closed) (symmetric)

**L=169 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Aug 24 10:49:26**

**L=169 found by James J Youlton Jr 2007 Aug 27 03:23:29**

**L=169 found by Moritz Franckenstein 2007 Sep 16 13:57:10**

**L=168 found by Markus Sigg 2007 Aug 29 21:19:13**

**L=167 found by Kevin Burfitt 2007 Aug 23 13:41:15**

**L=166 found by Jesse Kolman 2007 Nov 12 07:24:24**

**L=163 found by Eckard Specht & Dietmar Viertel & Martin Wohlgemuth 2007 Aug 21 07:19:37**

**L=163 found by QfwfQ 2007 Nov 13 17:12:19**

**L=162 found by Fred Mellender 2007 Aug 27 09:09:33**

**L=162 found by Moritz Franckenstein 2007 Sep 15 07:50:47**

**L=162 found by Ivan Kazmenko 2007 Sep 24 23:24:43 (closed) (symmetric)**

**L=162 found by Alexander Fischer 2007 Nov 20 08:31:57**

**L=161 found by James J Youlton Jr 2007 Aug 24 03:46:50**

**L=160 found by Olivier Buffet & Dmitry Kamenetsky 2007 Sep 8 00:04:40**

**L=158 found by Michael van Fondern 2007 Sep 16 07:16:09**

**L=157 found by Vadim Trofimov 2007 Aug 24 22:06:27 (symmetric)**

**L=156 found by James J Youlton Jr 2007 Aug 24 03:16:41**

**L=155 found by Ivan Kazmenko 2007 Sep 8 22:18:07 (symmetric)**

**L=153 found by Jesse Kolman 2007 Nov 12 07:23:50**

**L=151 found by Yirmy Yasovsky 2007 Aug 21 20:53:56**

**L=151 found by Joshua Zucker 2007 Sep 18 04:10:40**

**L=150 found by Joshua Zucker 2007 Aug 27 14:53:34**

**L=149 found by Michael van Fondern 2007 Sep 14 18:41:13**

**L=149 found by Jesse Kolman 2007 Nov 12 07:23:35**

**L=146 found by Klaus Nagel & Hugo Pfoertner & Rainer Rosenthal 2007 Aug 28 12:47:33**

**L=145 found by Mark Mammel 2007 Aug 21 12:34:47**

**L=144 found by Markus Sigg 2007 Aug 22 23:10:36**

**L=144 found by QfwfQ 2007 Oct 5 09:21:11**

**L=144 found by Jesse Kolman 2007 Nov 12 07:17:59**

**L=143 found by Markus Sigg 2007 Aug 22 23:07:26**

**L=143 found by Juergen Winterberg 2007 Nov 8 23:48:29**

**L=143 found by Jesse Kolman 2007 Nov 12 07:17:32**

**L=142 found by Olivier Buffet & Dmitry Kamenetsky 2007 Sep 2 16:00:57**

**L=142 found by G.R.A.20 Problem Solving 2007 Sep 4 15:10:17**

**L=142 found by Jesse Kolman 2007 Nov 12 07:17:18**

**L=142 found by Jesse Kolman 2007 Nov 12 07:23:16**

**L=141 found by Markus Sigg 2007 Aug 22 23:06:11**

**L=141 found by Jesse Kolman 2007 Nov 12 07:16:52**

**L=140 found by Markus Sigg 2007 Aug 21 10:32:13**

**L=140 found by Joshua Zucker 2007 Aug 27 14:52:31**

**L=138 found by G.R.A.20 Problem Solving 2007 Sep 2 20:08:20**

**L=138 found by Ivan Kazmenko 2007 Sep 24 23:24:32 (closed) (symmetric)**

**L=138 found by Jesse Kolman 2007 Nov 12 07:16:39**

**L=138 found by Jesse Kolman 2007 Nov 12 07:22:58**

**L=137 found by Olivier Buffet & Dmitry Kamenetsky 2007 Sep 1 00:50:53**

**L=137 found by Moritz Franckenstein 2007 Sep 9 00:11:13**

**L=136 found by Olivier Buffet & Dmitry Kamenetsky 2007 Aug 23 22:24:47**

**L=136 found by Vadim Trofimov 2007 Aug 24 17:12:02 (same as Aug 23 22:24:47)**

**L=136 found by SuperRock Sep 6 03:38:25 (same as 2007 Aug 23 22:24:47)**

**L=136 found by Mike White Nov 19 00:26:31 (same as 2007 Aug 23 22:24:47)**

**L=135 found by Sebastian Mingramm 2007 Sep 11 12:07:57**

**L=135 found by Jesse Kolman 2007 Nov 12 07:16:06**

**L=134 found by Olivier Buffet & Dmitry Kamenetsky 2007 Aug 23 22:24:10**

**L=134 found by Mike White Nov 18 17:02:25 (same as 2007 Aug 23 22:24:10)**

**L=133 found by QfwfQ 2007 Sep 27 09:20:35**

**L=133 found by Juergen Winterberg 2007 Oct 29 17:54:32**

**L=133 found by Jesse Kolman 2007 Nov 12 23:32:51**

**L=132 found by Sabur Zaheed (AIUB) 2007 Aug 21 17:27:59**

**L=132 found by Moritz Franckenstein 2007 Sep 3 10:29:09**

**L=132 found by Mark Gordon 2007 Sep 9 06:25:28**

**L=132 found by Tobias Baumann 2007 Nov 16 09:24:37**

**L=131 found by Mark Gordon 2007 Sep 8 20:13:27**

**L=131 found by Jesse Kolman 2007 Nov 12 07:15:01**

**L=130 found by Jesse Kolman 2007 Nov 10 17:26:50**

**L=130 found by Jesse Kolman 2007 Nov 12 07:38:46**

**L=129 found by Markus Sigg 2007 Aug 20 19:06:39**

**L=129 found by Frank Buss 2007 Sep 3 15:35:49**

**L=129 found by Polegenko Vladimir Nov 7 13:31:54 (same as 2007 Sep 3 15:35:49)**

**L=129 found by Brian Adams Nov 7 18:41:20 (same as 2007 Sep 3 15:35:49)**

**L=129 found by Jesse Kolman 2007 Nov 12 07:39:01**

**L=129 found by Mike White Nov 17 09:14:24 (same as 2007 Sep 3 15:35:49)**

**L=128 found by Moritz Franckenstein 2007 Aug 30 09:12:51**

**L=127 found by Jesse Kolman 2007 Nov 12 07:14:49**

**L=127 found by Jesse Kolman 2007 Nov 12 07:22:39**

**L=126 found by Moritz Franckenstein 2007 Aug 30 08:46:34**

**L=126 found by Ivan Kazmenko 2007 Sep 24 23:24:20 (closed) (symmetric)**

**L=126 found by Steve Trevorrow 2007 Oct 7 07:51:13**

**L=126 found by Jesse Kolman 2007 Nov 12 07:22:33**

**L=124 found by Jesse Kolman 2007 Nov 8 18:29:40**

**L=123 found by Sabur Zaheed (AIUB) 2007 Aug 21 17:27:18**

**L=123 found by Daumilas Ardickas 2007 Aug 24 19:50:01**

**L=123 found by Jesse Kolman 2007 Nov 12 07:14:40**

**L=123 found by Jesse Kolman 2007 Nov 12 07:21:43**

**L=122 found by Henry Song 2007 Sep 25 20:42:14**

**L=122 found by Tobias Baumann 2007 Nov 14 09:16:02**

**L=121 found by Jesse Kolman 2007 Nov 12 06:57:06**

**L=120 found by Moritz Franckenstein 2007 Aug 27 13:48:52**

**L=120 found by Jesse Kolman 2007 Nov 12 07:13:56**

**L=119 found by Fred Mellender 2007 Aug 22 02:16:00**

**L=119 found by Steve Trevorrow 2007 Oct 6 23:28:02**

**L=117 found by G.R.A.20 Problem Solving 2007 Aug 30 13:13:47**

**L=116 found by Gregor Heitkamp 2007 Sep 21 20:50:02**

**L=115 found by G.R.A.20 Problem Solving 2007 Aug 29 15:29:41**

**L=115 found by Sebastian Mingramm 2007 Sep 8 19:37:19**

**L=114 found by Joshua Zucker 2007 Aug 23 04:35:29**

**L=113 found by Jesse Kolman 2007 Nov 12 07:13:38**

**L=112 found by Frank Buss 2007 Aug 24 14:13:08**

**L=112 found by Jesse Kolman 2007 Nov 12 06:54:07**

**L=112 found by Jesse Kolman 2007 Nov 12 07:38:21**

**L=111 found by Brad Smith 2007 Oct 28 20:37:32**

**L=111 found by Jesse Kolman 2007 Nov 12 07:21:14**

**L=110 found by Jesse Kolman 2007 Nov 12 07:21:05**

**L=109 found by Jesse Kolman 2007 Nov 12 07:20:59**

**L=108 found by Ivan Kazmenko 2007 Sep 24 20:51:41 (closed) (symmetric)**

**L=108 found by Jesse Kolman 2007 Nov 12 07:20:46**

**L=108 found by Jesse Kolman 2007 Nov 12 07:38:03**

**L=106 found by Juha Saukkola 2007 Aug 26 12:11:21**

**L=106 found by Johan Stang 2007 Sep 28 11:44:46**

**L=106 found by Jesse Kolman 2007 Nov 12 07:13:20**

**L=106 found by Jesse Kolman 2007 Nov 12 07:37:31**

**L=105 found by Sebastian Mingramm 2007 Sep 6 06:20:05**

**L=105 found by Jesse Kolman 2007 Nov 12 07:20:24**

**L=104 found by Jesse Kolman 2007 Nov 12 07:13:12**

**L=102 found by Jesse Kolman 2007 Nov 12 07:12:33**

**L=102 found by Jesse Kolman 2007 Nov 12 07:20:08**

**L=101 found by Evgeni Lukin 2007 Oct 31 10:22:22**

**L=100 found by Sabur Zaheed (AIUB) 2007 Aug 21 17:26:18**

**L= 98 found by Henry Song 2007 Sep 21 16:11:32**

**L= 98 found by Jesse Kolman 2007 Nov 5 21:46:33**

**L= 96 found by David Rendo Rodriguez 2007 Sep 11 09:52:08**

**L= 96 found by Brad Smith Oct 15 22:04:27 (same as 2007 Sep 11 09:52:08)**

**L= 93 found by Juha Saukkola 2007 Aug 24 12:15:26**

**L= 93 found by Sebastian Mingramm 2007 Sep 5 06:28:59**

**L= 92 found by QfwfQ 2007 Sep 20 08:43:23**

**L= 92 found by Jesse Kolman 2007 Nov 12 07:19:50**

**L= 91 found by Jesse Kolman 2007 Nov 12 07:19:31**

**L= 90 found by Fironov Sergey 2007 Sep 6 19:23:19**

**L= 89 found by Juha Saukkola 2007 Aug 24 12:14:53**

**L= 89 found by David Rendo Rodriguez 2007 Sep 11 08:52:31**

**L= 89 found by Jesse Kolman 2007 Nov 12 07:19:11**

**L= 88 found by Jesse Kolman 2007 Nov 12 07:10:40**

**L= 84 found by Magnus Jansson 2007 Oct 16 23:19:38**

**L= 81 found by Henry Song 2007 Sep 17 03:43:48**

**L= 81 found by Juha Saukkola 2007 Oct 5 10:00:08**

**L= 81 found by Hyung-Sul Kim 2007 Oct 29 07:04:15**

**L= 80 found by Juha Saukkola 2007 Oct 5 10:00:47**

**L= 75 found by Fironov Sergey 2007 Sep 6 18:57:15**

**L= 74 found by Leonid Shishlo 2007 Aug 21 23:41:38**

**L= 66 found by Gregor Heitkamp 2007 Sep 12 22:05:19**

**L= 63 found by David Rendo Rodriguez 2007 Sep 8 08:53:23**

**L= 40 found by Adam Panagos 2007 Aug 27 19:39:23**

**L= 33 found by Ivan Kazmenko 2007 Sep 21 00:02:02**

**L= 32 found by Magnus Jansson 2007 Aug 28 12:46:58**

**L= 31 found by Gregory Horvath 2007 Nov 5 17:11:37**

**L= 16 found by Leonid Shishlo 2007 Aug 21 19:40:02**

**L= 7 found by Magnus Jansson 2007 Aug 24 16:59:24 (symmetric)**

**L= 7 found by Brad Smith Sep 25 22:32:31 (symmetric) (same as 2007 Aug 24 16:59:24)**

**L= 7 found by test Oct 24 11:49:44 (symmetric) (same as 2007 Aug 24 16:59:24)**