Next 7 dan endgame
This is the seventh and last 7x7-endgame-ko-problem! The last white move (the marked stone)was a mistake, although a common one (A2 instead would have secured a jigo). How can black punish white for his careless play?
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Author ferdi Created 2003-01-08
Difficulty 7 dan (history) Source ferdi
AVG solve time 40 sec Stars 4.5  (10 votes)
User attempts 160 / 2775 Collections 7x7 Endgames
Genre endgame Your attempts N/A
Similar problems
Created 2003-01-08
Source ferdi
Stars 4.5  (10 votes)
Collections 7x7 Endgames
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
— 2024-01-31 12:17:20 Failed A14 A13 C14 D14 A16 C13 A14 F18 B13 G18 C14 D13 B14 G19 E19
— 2023-10-07 12:43:00 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
davidgoto 2023-08-20 10:42:05 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
— 2023-08-09 00:49:27 Failed A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
— 2023-06-29 06:36:23 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
— 2023-06-28 06:49:49 Failed A14 A13 A16 C14 A14 F18 G18 A15
jmdingess 2022-12-28 20:38:47 Failed A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
:go 2020-10-09 22:49:43 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
shimitaku 2019-01-24 13:10:54 Failed A14 A13 C14 D14 A16 C13 A14 F18 B13 G18 C14 D13 B14 G19 E19
shimitaku 2019-01-24 13:10:27 Failed A14 A13 C14 D14 A16 C13 A14 F18 G18 A15
pento 2018-06-16 01:06:25 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2018-06-06 19:18:43 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2017-11-08 12:17:38 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2017-05-14 03:22:55 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
— 2017-05-14 03:21:32 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2016-03-01 09:36:42 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
— 2015-12-19 08:19:17 Failed A14 A13 A16 C14 A14 F18 G18 A15
Athanatos 2015-09-16 17:58:24 Failed A14 A13 A16 C14 A14 F18 G18 A15
calabiyau 2015-06-08 18:21:04 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
— 2014-07-22 20:55:55 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
pento 2014-06-03 12:04:33 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2014-03-10 03:18:31 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
— 2014-03-09 17:27:45 Failed A14 A13 C14 D14 A16 C13 A14 F18 G18 A15
— 2013-10-06 11:19:58 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
dischord 2013-05-11 21:46:50 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2012-11-09 14:41:08 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2012-09-26 04:58:00 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
— 2012-06-19 08:28:07 Failed A14 A13 A16 C14 A14 F18 G18 A15
Field Mouse 2012-05-10 09:33:45 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
— 2012-04-26 19:16:23 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
krt 2012-01-01 23:39:37 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
—´000 2011-12-29 02:59:54 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
Minirock 2011-12-05 06:48:00 Failed A14 A13 C14 D14 A16 C13 A14 F18 G18 A15
— 2011-10-30 11:28:14 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
zariuq 2011-09-24 09:25:03 Failed A14 A13 C14 D14 A16 C13 A14 F18 G18 A15
Spica 2011-09-13 14:23:48 Failed A14 A13 C14 D14 A16 C13 A14 F18 G18 A15
— 2011-09-11 15:41:05 Failed A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
— 2011-06-11 12:14:12 Failed A14 A13 C14 D14 A16 C13 A14 F18 G18 A15
— 2011-05-20 18:08:19 Failed A14 A13 A16 C14 A14 F18 G18 A15
MrMoto 2010-10-03 08:21:57 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
MrMoto 2010-10-03 08:10:40 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2009-04-18 11:57:21 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C13 C14
— 2008-10-18 04:44:38 Failed A14 A13 A16 C14 A14 F18 G18 A15
Piccolo 2008-06-19 15:01:29 Failed C14 A14 A16 D14
SolarBear 2008-06-16 16:17:25 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2008-05-05 10:42:52 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
— 2008-02-14 13:58:40 Failed A14 A13 C14 D14 A16 C13 A14 F18 G18 A15
— 2007-05-11 11:11:55 Failed C14 A14 B13
MrMoto 2007-03-24 13:35:51 Failed A14 A13 A16 C14 A14 F18 G18 A15
gorka 2006-06-18 09:24:11 Failed A14 A13 A16 C14 A14 F18 G18 A15 A19
hello 2006-04-04 07:07:53 Failed A14 A13 A16 C14 A14 F18 G18 A15
Field Mouse 2005-11-22 12:22:28 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
Field Mouse 2005-11-22 12:22:04 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2005-02-13 17:41:19 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
— 2005-02-12 08:10:35 Failed A14 A13 A16 C14 A14 F18 G18 A15
MrMoto 2005-01-20 18:54:46 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2004-06-24 13:56:09 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2004-03-04 07:10:48 Failed A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
— 2004-01-29 06:29:32 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
— 2003-12-15 03:05:04 Failed C14 A14 D14
— 2003-11-19 15:45:07 Failed A16 A14
— 2003-10-28 12:42:31 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
— 2003-10-02 07:30:02 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2003-08-23 22:16:24 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2003-06-16 04:05:19 Failed A14 A13 C14 D14 A16 C13 A14 F18 G18 A15
BartTM 2003-04-09 04:27:06 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
BartTM 2003-04-09 04:25:40 Failed A14 A13 A16 C14 A14 F18 G18 A15
— 2003-01-29 08:06:16 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
Hans 2003-01-15 03:14:04 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C13 C14 A14
— 2003-01-14 02:12:37 Failed A14 A13 A16 C14 A14 F18 G18 A15
adum 2003-01-08 20:09:01 Failed A14 A13 A16 C14 A14 F18 G18 A15
Hans 2003-01-09 03:56:28 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C13 C14 A14
Hans 2003-01-09 06:25:30 Failed A14 A13 C14 C13
Daniel 2003-01-09 08:45:48 Failed A14 A13 A16 C14 A14 F18 G18 A15
Spirit 2003-01-09 12:55:00 Failed A14 A13 A16 C14 A14 F18 G18 A15
Count Result Path
22 Failed A14 A13 A16 C14 A14 F18 G18 A15
11 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
10 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
8 Failed A14 A13 C14 D14 A16 C13 A14 F18 G18 A15
6 Failed A14 A13 A16 C14 A14 F18 G18 A15
3 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
3 Failed A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13 A14
2 Failed A14 A13 C14 D14 A16 C13 A14 F18 B13 G18 C14 D13 B14 G19 E19
2 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C13 C14 A14
1 Failed C14 A14 D14
1 Failed A16 A14
1 Failed A14 A13 A16 C14 A14 F18 G18 A15 A19
1 Failed C14 A14 B13
1 Failed C14 A14 A16 D14
1 Got It A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C13 C14
1 Failed A14 A13 C14 D14 C13 D13 A16 B13 A14 F18 G18 A15 C14 C13
1 Failed A14 A13 C14 C13