There is a couple of hours worth of analysis in the variations, so it may be interesting to navigate the solution afterwards. Most of the variations are based on my own analysis, so if you think there is an error or an important variation has been omitted, please add a comment. Thanks to Teemu Hirsimäki for practically forcing me to count these out by showing a subproblem of this :-)
Author Bass Created 2004-04-14
Difficulty 7 dan (history) Source N/A
AVG solve time 48 sec Stars 4.5  (4 votes)
User attempts 624 / 3325 Collections Carpenter's Square, Basic Shape, Corner based
Genre life and death Your attempts N/A
Similar problems
Created 2004-04-14
Source N/A
Stars 4.5  (4 votes)
Collections Carpenter's Square, Basic Shape, Corner based
Your attempts N/A
This feature allows you to explore how other users have tried to solve this problem. The number appearing in an intersection shows how many people went down that particular path. As well as being nice for curiosity's sake, this feature also shows problem creators where they might need to add more explanations of why certain moves don't work.
User Attempts
Name When Result Path
Spirit 2023-08-25 19:20:08 Got It S2 R2 Q2 T2 T3 S1 T1
davidgoto 2023-05-22 09:05:45 Failed Q2 S2 S1 T4 T3 R2 Q1 S3 T5 T2
2022-08-04 21:18:25 Got It S2 R2 Q2 T2 T3 S1 T1
:go 2022-03-12 05:08:05 Got It S2 R2 Q2 T2 T3 S1 T1
shimitaku 2019-01-25 12:41:46 Failed S2 R2 Q2 T2 T3 S1 R3
2016-02-22 13:17:56 Failed Q2 S2 S1 T4 S3 T3 R2
2015-12-31 09:32:06 Got It S2 R2 Q2 T2 T3 S1 T1
2015-12-11 02:14:47 Failed R2 S3 T4 S2 S1 Q1 Q2
2015-05-10 12:11:47 Got It S2 R2 Q2 T2 T3 S1 T1
2015-05-09 21:11:18 Failed S2 R2 Q2 T2 T3 S1 T1
2015-03-31 15:08:58 Got It S2 R2 Q2 T2 T3 S1 T1
2015-03-31 01:13:15 Failed Q2 S2 S1 T4 S3 T3 T2 T1
calabiyau 2015-03-09 11:34:48 Got It S2 R2 Q2 T2 T3 S1 T1
pento 2015-03-08 20:13:53 Failed S2 R2 Q2 T2 R1 T4
2015-02-02 14:33:19 Failed Q2 S2 S1 T4 S3 T3 T2 T1
2014-11-10 10:48:04 Got It R2 S3 T4 S2 T2 T3 S1 T1 Q2 Q1
2014-11-10 10:47:51 Failed R2 S3 T4 S2 T2 T3 S1 T1 Q2 Q1 R1
2014-11-10 10:47:28 Failed Q2 S2 S1 T4 S3 T3 T2 T1
2014-08-24 09:31:41 Failed S2 R2 Q2 T2 R3 T4 T3 S3
pento 2014-04-07 22:49:24 Failed S2 R2 Q2 T2 R1 T4
2014-04-04 06:53:11 Got It S2 R2 Q2 T2 T3 S1 T1
2013-09-26 05:48:39 Failed R2 S3 T2 T3 T4 S2 S1 T1 Q2 R1 Q1
2013-08-06 15:11:03 Got It S2 R2 Q2 T2 T3 S1
2013-08-06 15:10:31 Failed S2 R2 Q2 T2 T4 S1
2013-02-19 07:28:22 Failed Q2 S2 S1 T4 T2 S3
2013-01-25 11:50:02 Got It S2 R2 Q2 T2 T3 S1 T1
2012-05-27 01:52:53 Failed R2 S3 T3 T2 T4 S2 S1 Q2
2012-05-17 15:35:29 Failed Q2 S2 R2 T4 T3 S3 T5 T2 T4 S1
—´000 2012-03-17 03:32:39 Got It S2 R2 Q2 T2 T3 S1
—´000 2012-03-15 01:39:00 Failed S2 R2 Q2 T2 T3 S1
—´000 2012-03-15 01:38:42 Failed R2 S3 T3 T2 T4 S2 Q2
—´000 2012-03-15 01:38:29 Failed T1
—´000 2012-03-15 01:38:23 Failed S1 T4 T2 R2 Q2 S2 S3 R1 Q1 T1
—´000 2012-03-15 01:38:05 Failed S1 T4 S3 R2 Q1
—´000 2012-03-15 01:37:54 Failed S2 R2 Q2 T2 R3 T4 T3 S3
—´000 2012-03-15 01:37:41 Failed Q2 S2 R2 T4 S3 T3
—´000 2012-03-15 01:37:30 Failed S1 T4 T3 R2 Q2 S2 R1 S3 T5 T2
—´000 2012-03-15 01:37:19 Failed S1 T4 T2 R2 Q2 S2 T3
—´000 2012-03-15 01:37:10 Failed S1 T4 S3 R2 Q2 S2 T3 Q1
2012-02-15 03:47:34 Got It S2 R2 Q2 T2 T3 S1
2012-02-15 03:46:44 Failed R2 S3 T3 T2 T4 S2 Q2
2012-02-06 21:18:09 Failed R2 S3 T4 S2 S1 Q1 T2
krt 2012-01-04 21:50:54 Got It R2 S3 T2 T3 T4 S2 S1 T1 Q2 Q1
BartTM 2011-07-15 03:21:18 Got It S2 R2 Q2 T2 T3 S1
2011-07-14 20:17:15 Failed R2 S3 T2 T3 T4 S2 R3
2011-06-17 09:42:02 Got It R2 S3 T4 S2 T2 T3 S1 T1 Q1 Q2
2011-06-17 09:27:28 Failed R2 S3 T3 T2 T4 S2 S1 Q2
2011-06-17 06:09:37 Failed S2 R2 T3
2011-06-01 08:42:43 Failed S1 T4 T3 R2 Q2 S2 T2 Q1
2011-03-09 08:07:13 Got It S2 R2 Q2 T2 T3 S1
2011-03-09 06:37:41 Failed S2 R2 Q2 T2 R1 T4
2011-01-19 01:22:17 Got It R2 S3 T4 S2 T2 T3 S1 T1 R3 R1 Q1 Q2
2011-01-18 23:52:10 Failed R2 S3 T3 T2 T4 S2 S1 Q2
2010-12-20 05:36:11 Failed R2 S3 S2
2010-11-24 11:11:46 Failed Q2 S2 R2 T4 S1
frostburn 2010-06-13 12:46:41 Got It R2 S3 T2 T3 T4 S2 S1 T1 R3 R1 Q1 Q2
frostburn 2010-06-13 12:43:48 Failed S2 R2 Q2 T2 T3 S1 R3
2010-06-11 17:15:46 Got It S2 R2 Q2 T2 T3 S1
2010-05-22 10:18:15 Failed R2 S3 T3 T2 S2 T4
alexandrk 2010-04-02 07:08:08 Got It S2 R2 Q2 T2 T3 S1
2010-03-16 12:35:52 Got It S2 R2 Q2 T2 T3 S1
2010-03-12 06:50:59 Failed R2 S3 T3 T2 T4 S2 S1 Q2
2010-01-23 22:35:49 Got It S2 R2 Q2 T2 T3 S1
2009-05-27 08:41:59 Got It R2 S3 T2 T3 T4 S2 S1 T1 Q2 Q1
2009-05-27 01:14:40 Failed R2 S3 T3 T2 T4 S2 S1 Q2
dischord 2009-04-01 23:22:29 Got It S2 R2 Q2 T2 T3 S1
2009-03-24 10:58:32 Failed R2 S3 T4 S2 R1 Q2
2008-12-17 08:08:46 Got It S2 R2 Q2 T2 T3 S1
2008-12-13 03:10:07 Got It S2 R2 Q2 T2 T3 S1
2008-12-06 21:19:59 Failed S2 R2 Q2 T2 T3 S1 R3
2009-10-11 23:01:55 Failed S2 R2 Q2 T2 T3 S1
2008-09-22 10:24:33 Failed Q1 Q2 R2 S3
2008-08-27 17:47:29 Failed S2 R2 Q2 T2 R1 T4
2008-08-21 13:47:13 Failed S2 R2 Q2 T2 R1 T4
alexandrk 2008-08-03 10:38:59 Got It S2 R2 Q2 T2 T3 S1
2008-07-06 16:20:32 Got It S2 R2 Q2 T2 T3 S1
2008-07-05 17:07:45 Failed S2 R2 Q2 T2 S1
2008-07-04 13:14:03 Got It S2 R2 Q2 T2 T3 S1
2008-06-30 21:28:23 Failed S2 R2 Q2 T2 S1
2008-03-29 21:33:33 Got It S2 R2 Q2 T2 T3 S1
2008-03-29 21:32:42 Failed S2 R2 Q2 T2 Q1
2008-01-17 19:22:46 Failed R2 S3 T4 S2 T2 T3 R1
Dudzik 2007-12-31 00:41:50 Failed Q2 S2 S1 T4 T3 R2 S3
ketran0 2007-11-29 18:14:21 Failed R2 S3 T3 T2 T4 S2 S1 Q2
julien_wiesel 2007-11-02 06:10:30 Got It S2 R2 Q2 T2 T3 S1
Dudzik 2007-10-24 10:29:51 Failed R2 S3 T3 T2 T4 S2 S1 Q2
2007-09-27 07:23:50 Failed Q2 S2 S1 T4 T3 R2 R1 S3 T5 T2
2007-09-16 01:56:16 Failed R2 S3 T2 T3 T4 S2 S1 T1 Q2 Q1
whendrik 2007-05-16 08:12:55 Failed R2 S3 T4 S2 R1 Q2
Dudzik 2007-05-13 10:26:53 Failed R2 S3 T3 T2 T4 S2 S1 Q2
whendrik 2007-05-12 14:42:45 Failed Q2 S2 S1 T4 T3 R2 R1 S3 T5 T2
2007-04-13 17:23:02 Failed R2 S3 T3 T2 T4 S2 S1 Q2
2007-04-07 22:48:50 Got It S2 R2 Q2 T2 T3 S1 T1
2007-04-07 22:48:33 Failed S2 R2 Q2 T2 R1 T4
2007-04-05 02:11:01 Failed R2 S3 T2 S1 Q2
2007-03-19 09:34:52 Failed Q2 S2 S1 T4 T3 R2 R1 S3 T2
Dudzik 2007-03-11 10:52:54 Failed R2 S3 T3 T2 S2 T4
Athanatos 2007-03-09 11:01:36 Got It S2 R2 Q2 T2 T3 S1 T1
Athanatos 2007-03-04 09:10:59 Failed Q2 S2 S1 T4 T3 R2 Q1 S3 T5 T2
Dudzik 2007-02-04 02:23:13 Failed S2 R2 Q2 T2 R3 T4 T3 S3
2007-01-25 10:26:42 Got It S2 R2 Q2 T2 T3 S1 T1
2007-01-16 09:59:08 Failed S2 R2 Q2 T2 R1 T4
2007-01-11 10:17:45 Failed S2 R2 Q2 T2 R1 T4
2006-10-27 06:08:46 Failed R2 S3 T3 T2 T4 S2 S1 Q2 A19
2006-10-09 16:33:49 Failed R2 S3 T4 S2 T2 Q1 R1 S1 Q2 A19
Dudzik 2006-08-16 12:47:06 Failed S2 R2 Q2 T2 S1 A19
2006-06-15 12:43:37 Got It R2 S3 T2 T3 T4 S2 S1 T1 R3 R1 Q1 Q2 S1 A19
2006-06-15 03:00:54 Failed R2 S3 T3 T2 T4 S2 S1 Q2 A19
2006-06-05 12:35:26 Failed R2 S3 T3 T2 T4 S2 S1 Q2 A19
2006-04-27 15:10:22 Got It S2 R2 Q2 T2 T3 S1 T1 A19
miicthor 2006-04-12 23:06:24 Failed S2 R2 Q2 T2 R1 T4
miicthor 2006-03-30 10:40:30 Failed R2 S3 S2
whendrik 2006-03-07 04:43:16 Failed R2 S3 S2 A19
MrMoto 2006-01-01 21:36:06 Failed Q2 S2 S1 T4 S3 T3 T2 T1
WTD 2005-11-18 06:21:56 Got It S2 R2 Q2 T2 T3 S1 T1
WTD 2005-11-18 06:19:56 Failed S1 T4 S3 R2 Q2 S2 T2 R1 Q1 T1
Field Mouse 2005-10-30 10:48:35 Got It S2 R2 Q2 T2 T3 S1 T1
2005-10-15 05:54:34 Got It S2 R2 Q2 T2 T3 S1 T1
2005-09-07 14:23:32 Failed Q2 S2 S1 T4 S3 T3 T2 T1
2005-07-23 02:28:11 Failed S2 R2 Q2 T2 S1
2005-07-19 04:17:45 Failed R1 Q1
2005-07-03 12:29:09 Failed R2 S3 T4 S2 T2 S1 Q2
tom111 2005-06-19 06:52:42 Failed Q2 S2 S1 T4 T3 R2 R1 S3 T5 T2
2005-06-16 23:52:57 Got It S2 R2 Q2 T2 T3 S1 T1
2005-06-13 04:10:22 Failed R2 S3 T3 T2 T4 S2 S1 Q2
2005-05-31 19:27:54 Failed S2 R2 Q2 T2 S1
2005-05-30 04:03:30 Got It S2 R2 Q2 T2 T3 S1 T1
2005-05-26 20:20:31 Failed R2 S3 T3 T2 T4 S2 S1 Q2
2005-05-18 18:38:56 Failed R2 S3 T3 T2 T4 S2 S1 Q2
2005-05-17 14:14:52 Failed R2 S3 T3 T2 T4 S2 S1 Q2
MrMoto 2005-05-15 16:54:38 Got It S2 R2 Q2 T2 T3 S1 T1
Spirit 2005-05-05 01:04:45 Got It S2 R2 Q2 T2 T3 S1 T1
2005-04-28 13:53:50 Got It S2 R2 Q2 T2 T3 S1 T1
2005-04-16 18:10:32 Failed S2 R2 Q2 T2 T3 S1 R3
2005-04-07 22:18:31 Failed S2 R2 Q2 T2 R1 T4
2005-03-30 03:23:49 Got It S2 R2 Q2 T2 T3 S1 T1
2005-03-01 06:17:56 Got It S2 R2 Q2 T2 T3 S1 T1
marwin 2005-01-14 09:36:11 Got It R2 S3 T4 S2 T2 T3 S1 T1 Q1 Q2 T2
marwin 2005-01-14 09:23:34 Failed R2 S3 T3 T2 T4 S2 S1 Q2
marwin 2005-01-14 09:12:02 Failed Q2 S2 R2 T4 T3 S3 T5 T2 Q1 S1
2005-01-14 04:28:11 Failed R1 Q2 R2 S3
MrMoto 2005-01-14 01:17:45 Failed S2 R2 Q2 T2 R1 T4
2004-11-17 00:18:25 Failed S2 R2 Q2 T2 T3 S1 T1
2004-11-17 00:14:50 Failed S2 R2 Q2 T2 R3 T4 T3 S3
2004-11-10 00:57:21 Failed R2 S3 S2
2004-11-02 02:51:08 Failed S2 R2 Q2 T2 S3 Q1
switch 2004-10-28 13:38:05 Got It S2 R2 Q2 T2 T3 S1 T1
switch 2004-10-28 05:35:11 Failed S2 R2 Q2 T2 R1 T4
switch 2004-10-21 05:43:05 Failed R2 S3 T3 T2 T4 S2 S1 Q2
2004-09-10 09:18:02 Got It S2 R2 Q2 T2 T3 S1 T1
2004-09-01 23:10:13 Got It S2 R2 Q2 T2 T3 S1 T1
2004-08-25 19:25:33 Failed S2 R2 Q2 T2 R3 T4 T3 S3
2004-08-23 22:27:09 Got It S2 R2 Q2 T2 T3 S1 T1
2004-08-23 21:58:35 Failed R2 S3 T2 T3 T4 S2 S1 T1 Q2 R1 Q1 P1
2004-08-23 21:54:00 Failed S2 R2 Q2 T2 S3 Q1
2004-08-23 14:18:30 Got It R2 S3 T4 S2 T2 T3 S1 T1 Q2 Q1 T2
Hans 2004-08-16 07:02:42 Failed R2 S3 T3 T2 T4 S2 S1 Q2
hello 2004-08-11 10:32:20 Got It S2 R2 Q2 T2 T3 S1 T1
2004-07-15 23:43:34 Got It S2 R2 Q2 T2 T3 S1 T1
2004-07-07 12:05:42 Got It S2 R2 Q2 T2 T3 S1 T1
assacra 2004-05-29 02:26:00 Failed R2 S3 T3 T2 T4 S2 R1
2004-05-14 05:01:52 Failed R2 S3 T4 S2 S1 Q1 T2 R1
2004-05-04 16:35:27 Got It S2 R2 Q2 T2 T3 S1 T1
2004-05-03 15:54:15 Failed R2 S3 T3 T2 T4 S2 S1 Q2
marwin 2004-04-30 02:10:14 Failed R2 S3 T4 S2 S1 Q1 T2 R1
2004-04-29 06:08:46 Got It S2 R2 Q2 T2 T3 S1 T1
marwin 2004-04-27 13:21:11 Failed R2 S3 T3 T2 T4 S2 S1 Q2
2004-04-26 03:03:19 Failed R2 S3 T4 S2 T2 Q1 R1 S1 Q2
kochi 2004-04-18 03:56:13 Got It S2 R2 Q2 T2 T3 S1 T1
kochi 2004-04-17 22:19:31 Failed S2 R2 Q2 T2 R1
2004-04-16 03:30:10 Got It S2 R2 Q2 T2 T3 S1 T1
2004-04-16 03:01:28 Failed S2 R2 Q2 T2 T3 S1 T1
Aret 2004-04-16 00:44:21 Failed R2 S3 T4 S2 R1
BartTM 2004-04-16 00:29:21 Got It S2 R2 Q2 T2 T3 S1 T1
2004-04-15 23:20:47 Failed Q2 S2 R2 T4 T3 S3 T5 T2 S1 T4
adum 2004-04-15 08:54:32 Failed S2 R2 Q2 T2 S1
WTD 2004-04-15 08:13:20 Failed S2 R2 Q2 T2 R3 T4 R1
2004-04-15 06:34:31 Failed R2 S3 S2
2004-04-15 05:59:58 Failed S2 R2 R1
Daniel 2004-04-15 04:52:49 Got It S2 R2 Q2 T2 T3 S1 T1
2004-04-15 04:40:19 Failed S2 R2 Q2 T2 R1
2004-04-15 04:36:55 Failed S2 R2 Q2 T2 T3 S1 S3
maba 2004-04-15 04:14:45 Got It S2 R2 Q2 T2 T3 S1 T1
2004-04-15 03:59:55 Failed T4 R2 Q2 Q1
2004-04-15 03:41:23 Failed S2 R2 Q2 T2 T3 S1 T1
2004-04-15 03:36:37 Failed R2 S3 T4 S1
2004-04-15 02:50:43 Got It S2 R2 Q2 T2 T3 S1 T1
2004-04-15 02:42:18 Failed S2 R2 Q2 T2 T3 S1 T1
marwin 2004-04-15 02:26:52 Failed Q2 S2 S1 T4 T3 R2 R1 S3 T5 T2
2004-04-15 02:18:55 Got It R2 S3 T4 S2 S1 T3 T2 T1 Q2 Q1 T2
2004-04-14 23:13:17 Failed R2 S3 T4 S2 S1 T3 T2 T1 Q2 Q1 T2
Count Result Path
37 Got It S2 R2 Q2 T2 T3 S1 T1
18 Failed R2 S3 T3 T2 T4 S2 S1 Q2
17 Got It S2 R2 Q2 T2 T3 S1
12 Failed S2 R2 Q2 T2 R1 T4
5 Failed Q2 S2 S1 T4 S3 T3 T2 T1
5 Failed S2 R2 Q2 T2 T3 S1 T1
5 Failed S2 R2 Q2 T2 R3 T4 T3 S3
5 Failed S2 R2 Q2 T2 S1
4 Failed Q2 S2 S1 T4 T3 R2 R1 S3 T5 T2
4 Failed S2 R2 Q2 T2 T3 S1 R3
4 Failed R2 S3 S2
3 Failed R2 S3 T3 T2 T4 S2 S1 Q2 A19
2 Failed Q2 S2 S1 T4 T3 R2 Q1 S3 T5 T2
2 Failed R2 S3 T3 T2 T4 S2 Q2
2 Failed S2 R2 Q2 T2 S3 Q1
2 Failed R2 S3 T4 S2 S1 Q1 T2 R1
2 Failed R2 S3 T3 T2 S2 T4
2 Got It R2 S3 T2 T3 T4 S2 S1 T1 Q2 Q1
2 Failed R2 S3 T4 S2 R1 Q2
2 Failed S2 R2 Q2 T2 R1
2 Failed S2 R2 Q2 T2 T3 S1
1 Failed S2 R2 Q2 T2 Q1
1 Failed Q2 S2 R2 T4 S1
1 Got It R2 S3 T4 S2 T2 T3 S1 T1 R3 R1 Q1 Q2
1 Got It R2 S3 T2 T3 T4 S2 S1 T1 R3 R1 Q1 Q2
1 Failed S1 T4 T3 R2 Q2 S2 T2 Q1
1 Failed S2 R2 T3
1 Got It R2 S3 T4 S2 T2 T3 S1 T1 Q1 Q2
1 Failed Q1 Q2 R2 S3
1 Failed R2 S3 T2 T3 T4 S2 R3
1 Failed R2 S3 T4 S2 T2 Q1 R1 S1 Q2 A19
1 Failed R2 S3 T4 S2 S1 Q1 T2
1 Failed S1 T4 S3 R2 Q2 S2 T3 Q1
1 Failed S1 T4 T2 R2 Q2 S2 T3
1 Failed S1 T4 T3 R2 Q2 S2 R1 S3 T5 T2
1 Failed Q2 S2 R2 T4 S3 T3
1 Failed S1 T4 S3 R2 Q1
1 Failed S1 T4 T2 R2 Q2 S2 S3 R1 Q1 T1
1 Failed T1
1 Failed Q2 S2 R2 T4 T3 S3 T5 T2 T4 S1
1 Failed Q2 S2 S1 T4 T2 S3
1 Failed S2 R2 Q2 T2 T4 S1
1 Failed R2 S3 T2 T3 T4 S2 S1 T1 Q2 R1 Q1
1 Failed R2 S3 T4 S2 T2 T3 S1 T1 Q2 Q1 R1
1 Got It R2 S3 T4 S2 T2 T3 S1 T1 Q2 Q1
1 Failed R2 S3 T4 S2 S1 Q1 Q2
1 Failed Q2 S2 S1 T4 S3 T3 R2
1 Failed Q2 S2 R2 T4 T3 S3 T5 T2 Q1 S1
1 Got It R2 S3 T4 S2 S1 T3 T2 T1 Q2 Q1 T2
1 Failed R2 S3 T4 S1
1 Failed T4 R2 Q2 Q1
1 Failed S2 R2 Q2 T2 T3 S1 S3
1 Failed S2 R2 R1
1 Failed S2 R2 Q2 T2 R3 T4 R1
1 Failed Q2 S2 R2 T4 T3 S3 T5 T2 S1 T4
1 Failed R2 S3 T4 S2 R1
1 Failed R2 S3 T4 S2 T2 Q1 R1 S1 Q2
1 Failed R2 S3 T3 T2 T4 S2 R1
1 Got It R2 S3 T4 S2 T2 T3 S1 T1 Q2 Q1 T2
1 Failed R2 S3 T2 T3 T4 S2 S1 T1 Q2 R1 Q1 P1
1 Failed R1 Q2 R2 S3
1 Failed R2 S3 T4 S2 T2 T3 R1
1 Got It R2 S3 T4 S2 T2 T3 S1 T1 Q1 Q2 T2
1 Failed R2 S3 T4 S2 T2 S1 Q2
1 Failed R1 Q1
1 Failed S1 T4 S3 R2 Q2 S2 T2 R1 Q1 T1
1 Failed R2 S3 S2 A19
1 Got It S2 R2 Q2 T2 T3 S1 T1 A19
1 Got It R2 S3 T2 T3 T4 S2 S1 T1 R3 R1 Q1 Q2 S1 A19
1 Failed S2 R2 Q2 T2 S1 A19
1 Failed R2 S3 T4 S2 S1 T3 T2 T1 Q2 Q1 T2
1 Failed Q2 S2 S1 T4 T3 R2 R1 S3 T2
1 Failed R2 S3 T2 S1 Q2
1 Failed R2 S3 T2 T3 T4 S2 S1 T1 Q2 Q1
1 Failed Q2 S2 S1 T4 T3 R2 S3