Next 5 dan
Assuming, that White has got way more ko threats than black does,- can Black kill this group anyway?
Research (Beta) Add / View flags
Author kaf
Difficulty 5 dan (history)
AVG solve time 40 sec
User attempts 128 / 1058
Genre life and death ⓒ
Similar problems
Created 2006-04-28
Source dashnet
Stars 4.75  (4 votes)
Collections
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 User Rating When Result Path Time
— 9 dan 2025-04-26 15:51:43 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2025-04-26 14:40:06 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2025-04-22 15:58:26 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 8 dan 2025-04-08 23:59:54 Failed C2 D4 D5 C5 B5 N/A
— 9 dan 2024-10-19 04:14:26 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-10-15 00:04:58 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-10-14 22:15:17 Failed B5 D4 D5 C5 A6 A3 A4 C2 C4 A5 N/A
— 9 dan 2024-09-24 14:26:14 Got It B5 D4 D5 C5 A6 A3 B1 C1 C2 A1 C4 C5 A4 N/A
— 6 dan 2024-09-20 16:05:20 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 6 dan 2024-09-20 16:04:51 Failed B5 D4 D5 C5 A6 A3 C2 B1 C4 N/A
— 9 dan 2024-07-29 16:36:09 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 7 dan 2024-06-01 12:37:57 Failed D4 C2 A4 N/A
— 8 dan 2024-04-17 08:35:10 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-04-02 19:17:44 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 8 dan 2024-03-27 07:33:44 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-03-15 23:03:53 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-03-13 17:22:01 Failed B5 D4 D5 C5 A6 A3 A4 C2 C4 A5 N/A
— 8 dan 2024-03-13 09:53:42 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 8 dan 2024-03-13 03:59:38 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 8 dan 2024-03-13 00:48:09 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 8 dan 2024-03-10 06:39:52 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 8 dan 2024-03-09 04:13:16 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-03-06 18:35:09 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-03-04 21:26:54 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-03-04 21:23:17 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-03-04 06:19:30 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-03-03 23:53:20 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-03-03 20:55:06 Failed B5 D4 D5 C5 A6 A3 A4 C2 C4 A5 N/A
— 9 dan 2024-03-02 17:10:49 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-03-02 15:49:45 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
***** 11 kyu 2024-03-02 06:07:34 Failed C2 D4 D5 C5 B5 N/A
SlappyTappy 1 dan 2024-03-02 05:34:31 Failed B5 D4 D5 C5 A3 B6 N/A
SlappyTappy 1 dan 2024-03-02 05:33:52 Failed A3 D4 D5 C5 B6 N/A
— 9 dan 2024-02-29 23:42:42 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-02-29 07:31:42 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 9 dan 2024-02-29 06:17:58 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 12 kyu 2024-02-26 12:08:05 Failed B5 D4 D5 C5 C2 B6 N/A
— 12 kyu 2024-02-26 12:05:16 Failed D4 C2 B5 A3 N/A
— 12 kyu 2024-02-26 11:54:46 Failed B5 D4 D5 C5 C2 B6 N/A
— 9 dan 2024-02-25 20:56:22 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 8 dan 2024-02-25 13:44:51 Failed B5 D4 D5 C5 B6 A3 C2 B1 N/A
— 5 dan 2024-02-24 14:37:49 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 5 dan 2024-02-23 09:23:56 Failed B6 N/A
— 5 dan 2024-02-23 09:23:00 Failed B5 D4 D5 C5 B6 A3 C2 B1 N/A
— 10 kyu 2024-02-22 21:46:22 Failed D4 C2 C1 B1 N/A
— 9 dan 2024-02-22 14:23:19 Failed B5 D4 D5 C5 B6 A3 C2 B1 N/A
— 8 dan 2024-02-17 14:35:16 Failed A3 D4 D5 C5 B5 N/A
— 8 dan 2024-02-16 14:22:48 Failed D4 C2 B6 N/A
— 13 kyu 2023-06-12 06:50:57 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 13 kyu 2023-06-11 05:49:12 Failed B5 D4 D5 C5 C2 B6 N/A
— 13 kyu 2023-06-10 10:12:03 Failed B5 D4 D5 C5 C2 B6 N/A
davidgoto 1 dan 2023-04-27 15:46:26 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 10 kyu 2023-03-04 22:32:06 Failed B1 C2 C1 D4 D5 C5 N/A
Spirit 7 dan 2023-01-25 19:27:13 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
Spirit 7 dan 2023-01-25 18:39:54 Failed B5 D4 D5 C5 A4 N/A
jmdingess 5 dan 2022-12-28 21:09:53 Failed B5 D4 D5 C5 C2 B6 N/A
— 9 dan 2022-12-20 10:56:06 Failed B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 5 dan 2022-12-16 11:57:35 Failed B5 D4 D5 C5 A3 B6 N/A
— 3 kyu 2022-12-07 20:30:44 Failed C5 C2 N/A
— 9 dan 2022-11-30 15:27:41 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 10 kyu 2022-11-30 00:18:49 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 10 kyu 2022-11-29 15:21:17 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 10 kyu 2022-11-29 10:17:52 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 10 kyu 2022-11-27 15:09:35 Failed D4 C2 C1 B1 N/A
— 1 dan 2021-08-31 21:01:10 Failed B5 D4 D5 C5 C2 B6 N/A
— 10 kyu 2020-05-12 17:19:09 Failed A3 D4 D5 C5 B6 N/A
— 10 kyu 2019-07-10 13:29:00 Failed B5 D4 D5 C5 B6 A3 C2 B1 N/A
— 8 dan 2015-12-01 06:20:35 Failed B5 D4 D5 C5 C4 N/A
— 1 kyu 2015-11-29 03:44:19 Failed C5 C2 N/A
— 8 dan 2015-10-03 14:52:40 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 6 dan 2015-09-22 18:39:22 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
pento 10 kyu 2015-05-16 18:02:04 Failed D4 C2 B5 A3 N/A
wukong1 3 dan 2014-12-19 04:16:53 Failed K9 N/A
wukong1 3 dan 2013-09-03 18:39:08 Failed B5 D4 D5 C5 C4 N/A
— 8 dan 2013-05-14 13:30:06 Failed B6 N/A
— 7 dan 2013-03-14 14:15:05 Got It B5 D4 D5 C5 A6 A3 C2 B1 N/A
— 7 dan 2013-03-14 14:14:14 Failed B5 D4 D5 C5 C2 B6 N/A
— 5 dan 2012-10-24 15:42:28 Failed C2 D4 D5 C5 B6 N/A
— 5 dan 2012-10-24 15:41:58 Failed C2 D4 D5 C5 A3 N/A
—´000 7 dan 2012-07-10 01:25:39 Got It B5 D4 D5 C5 A6 A3 C2 B1 N/A
— 4 dan 2012-06-28 09:55:39 Failed D4 C2 B5 A3 N/A
— 7 dan 2012-06-09 12:13:15 Failed B5 D4 D5 C5 A6 A3 C2 B1 N/A
— 4 dan 2012-02-14 09:24:13 Failed D4 C2 A4 N/A
—´000 7 dan 2012-01-04 01:32:31 Got It B5 D4 D5 C5 A6 A3 C2 B1 N/A
—´000 7 dan 2012-01-04 01:32:14 Failed B5 D4 D5 C5 B6 A3 B1 C1 C2 A1 N/A
krt 9 dan 2012-01-02 16:36:08 Got It B5 D4 D5 C5 A6 A3 C2 B1 N/A
— 5 dan 2011-09-12 22:36:22 Failed B5 D4 D5 C5 B6 A3 C2 B1 N/A
Spica 29 kyu 2011-09-03 17:46:36 Failed D4 C2 A3 A2 N/A
MrMoto 5 kyu 2010-10-07 19:28:30 Failed B5 D4 D5 C5 C2 B6 N/A
— 4 dan 2010-07-12 12:33:26 Failed D4 C2 B5 A3 N/A
— 6 dan 2010-06-02 15:29:58 Failed D4 C2 A3 A2 N/A
dischord 4 dan 2010-03-18 22:58:31 Failed A6 N/A
— 29 kyu 2009-04-14 12:07:26 Got It B5 D4 D5 C5 A6 A3 C2 B1 N/A
— 29 kyu 2009-03-17 23:10:55 Failed D4 C2 B5 A3 N/A
— 4 dan 2009-03-04 13:24:08 Got It B5 D4 D5 C5 A6 A3 C2 B1 N/A
— 1 kyu 2008-11-09 20:26:56 Failed D4 C2 A3 A2 N/A
BartTM 2 kyu 2008-09-22 03:14:03 Failed B5 D4 D5 C5 B6 A3 B1 C1 C2 A1 N/A
MrMoto 5 kyu 2008-02-13 08:37:16 Failed B5 D4 D5 C5 B6 A3 B1 C1 C2 A1 N/A
Athanatos 5 dan 2007-09-12 05:41:52 Failed D4 C2 A3 A2 N/A
ketran0 29 kyu 2007-04-17 18:17:46 Failed B5 D4 D5 C5 B6 A3 N/A
Field Mouse 5 dan 2007-03-05 11:01:59 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 N/A
— 8 kyu 2006-12-12 03:15:30 Got It B5 D4 D5 C5 A6 A3 B1 C1 C2 A1 C4 C5 A4 A19 N/A
— 28 kyu 2006-12-11 20:56:22 Failed B5 D4 D5 C5 A4 A19 N/A
— 8 kyu 2006-12-11 10:46:39 Failed D4 C2 A3 A2 A19 N/A
— 28 kyu 2006-12-09 08:12:38 Failed A3 D4 D5 C5 A19 N/A
— 8 kyu 2006-12-01 07:33:16 Failed B5 D4 D5 C5 A4 A19 N/A
— 28 kyu 2006-11-30 19:05:28 Failed C5 A19 N/A
— 8 kyu 2006-11-07 09:12:27 Failed B5 D4 D5 C5 A4 A19 N/A
— 8 kyu 2006-11-03 05:46:25 Failed D4 C2 A3 A2 A19 N/A
— 8 kyu 2006-10-27 05:52:44 Failed B5 D4 D5 C5 B6 A3 B1 C1 A19 N/A
— 2 kyu 2006-08-11 23:12:09 Failed A3 D4 D5 C5 A19 N/A
— 4 dan 2006-05-30 13:40:55 Failed D4 C2 A19 N/A
— 4 dan 2006-05-16 18:52:09 Failed B5 D4 D5 C5 A6 A3 A4 A19 N/A
— 4 dan 2006-05-12 16:48:17 Failed B5 D4 D5 C5 A6 A3 C2 B1 C4 C5 C4 A19 N/A
— 4 dan 2006-05-11 14:43:39 Failed B5 D4 D5 C5 A6 A3 C2 B1 C4 C5 C4 A19 N/A
— 4 dan 2006-05-09 17:33:29 Got It B5 D4 D5 C5 A6 A3 C2 B1 C4 C5 A4 A19 N/A
— 4 dan 2006-05-07 22:40:16 Failed B5 D4 D5 C5 A6 A3 B1 A19 N/A
— 4 dan 2006-05-04 18:18:02 Failed A3 D4 D5 C5 B5 B6 A19 N/A
— 4 dan 2006-05-04 18:13:32 Failed B5 D4 D5 C5 A6 A3 D1 A19 N/A
— 1 kyu 2006-05-02 09:48:15 Failed B5 D4 D5 C5 A6 A3 C2 B1 C4 A19 N/A
— 4 dan 2006-05-01 21:06:54 Failed B5 D4 D5 C5 C2 B6 A19 N/A
— 4 dan 2006-05-01 20:47:40 Failed B5 D4 D5 C5 A6 C2 C1 B1 A3 A4 A2 A19 N/A
— 4 dan 2006-05-01 20:44:58 Failed D4 C2 B5 A3 A19 N/A
— 1 dan 2006-05-01 13:22:16 Failed D4 C2 A3 A19 N/A
— 1 kyu 2006-05-01 03:42:33 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 A5 C4 A19 N/A
— 1 kyu 2006-05-01 03:00:53 Failed B5 D4 D5 C5 B6 A19 N/A
— 5 kyu 2006-04-29 14:45:52 Failed C2 D4 D5 C5 B5 B6 A19 N/A
Count Result Path
38 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4
8 Failed B5 D4 D5 C5 C2 B6
6 Got It B5 D4 D5 C5 A6 A3 C2 B1
5 Failed B5 D4 D5 C5 B6 A3 C2 B1
5 Failed D4 C2 B5 A3
4 Failed D4 C2 A3 A2
3 Failed B5 D4 D5 C5 A6 A3 A4 C2 C4 A5
3 Failed B5 D4 D5 C5 B6 A3 B1 C1 C2 A1
3 Failed B5 D4 D5 C5 A4 A19
2 Failed A3 D4 D5 C5 A19
2 Failed D4 C2 A4
2 Failed B6
2 Failed B5 D4 D5 C5 C4
2 Failed D4 C2 A3 A2 A19
2 Failed A3 D4 D5 C5 B6
2 Failed B5 D4 D5 C5 A6 A3 C2 B1 C4 C5 C4 A19
2 Failed D4 C2 C1 B1
2 Failed B5 D4 D5 C5 A3 B6
2 Failed C2 D4 D5 C5 B5
2 Failed C5 C2
1 Failed C2 D4 D5 C5 B6
1 Failed C2 D4 D5 C5 B5 B6 A19
1 Failed B5 D4 D5 C5 A6 A3 C2 B1 C4
1 Failed C2 D4 D5 C5 A3
1 Failed A3 D4 D5 C5 B5
1 Failed D4 C2 B6
1 Failed B1 C2 C1 D4 D5 C5
1 Failed B5 D4 D5 C5 A4
1 Failed B5 D4 D5 C5 A6 A3 C2 B1 A4
1 Failed K9
1 Got It B5 D4 D5 C5 A6 A3 B1 C1 C2 A1 C4 C5 A4
1 Failed B5 D4 D5 C5 A6 A3 B1 A19
1 Failed B5 D4 D5 C5 B6 A19
1 Got It B5 D4 D5 C5 A6 A3 C2 B1 A4 A5 C4 A19
1 Failed D4 C2 A3 A19
1 Failed D4 C2 B5 A3 A19
1 Failed B5 D4 D5 C5 A6 C2 C1 B1 A3 A4 A2 A19
1 Failed B5 D4 D5 C5 C2 B6 A19
1 Failed B5 D4 D5 C5 A6 A3 C2 B1 C4 A19
1 Failed B5 D4 D5 C5 A6 A3 D1 A19
1 Failed A3 D4 D5 C5 B5 B6 A19
1 Failed B5 D4 D5 C5 A6 A3 C2 B1
1 Got It B5 D4 D5 C5 A6 A3 C2 B1 C4 C5 A4 A19
1 Failed B5 D4 D5 C5 A6 A3 A4 A19
1 Failed D4 C2 A19
1 Failed B5 D4 D5 C5 B6 A3 B1 C1 A19
1 Failed C5 A19
1 Got It B5 D4 D5 C5 A6 A3 B1 C1 C2 A1 C4 C5 A4 A19
1 Failed B5 D4 D5 C5 B6 A3
1 Failed A6