invalid problem set
Problem | 7063 |
Created | 2005-08-11 |
Source | Encyclopedia of life and death |
Rating | |
Difficulty | 9.3 kyu |
Average Solve Time | 69 secs |
User Attempts |
1740 / 5192 |
Solve Ratio Rating | 5 kyu |
| rating history |
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PW[White]PB[Black]AW[ea][cb][eb][bc][dc][fc][dd][ed][fd]AB[da][bb][fb][gb][cc][gc][cd][gd][ce][de][ee][fe][ge]C[Black to play]
(;B[ca]CR[ca]
;W[db]CR[db]
(;B[aa]CR[aa]
;W[ba]CR[ba]
;B[ca]CR[ca]
;W[bd]CR[bd]
(;B[be]CR[be]
;W[ac]CR[ac]
(;B[fa]CR[fa]C[RIGHT White can't approach from either side.])
(;B[ae]CR[ae]
;W[da]CR[da]
(;B[ad]CR[ad]
;W[ba]CR[ba]
;B[ab]CR[ab]C[RIGHT])
(;B[fa]CR[fa]
;W[ba]CR[ba]C[Ko. Black can do better.])))
(;B[fa]CR[fa]
;W[ad]CR[ad]
(;B[be]CR[be]
;W[ab]CR[ab]C[Ko. Black can do better.])
(;B[ab]CR[ab]
;W[ac]CR[ac]C[White lives])
(;B[ac]CR[ac]
;W[ab]CR[ab]C[Ko. Black can do better.])))
(;B[ba]CR[ba]
;W[ab]CR[ab]C[White lives])
(;B[ac]CR[ac]
;W[ba]CR[ba]
(;B[ab]CR[ab]
;W[ca]CR[ca]C[White lives])
(;B[ca]CR[ca]
;W[ab]CR[ab]C[White lives]))
(;B[bd]CR[bd]
;W[ba]CR[ba]
(;B[ac]CR[ac]
;W[ca]CR[ca]C[White lives])
(;B[ca]CR[ca]
;W[ab]CR[ab]C[White lives])))
(;B[ba]CR[ba]
;W[db]CR[db]
(;B[ca]CR[ca]
;W[ab]CR[ab]C[White lives])
(;B[ac]CR[ac]
;W[ca]CR[ca]C[White lives])
(;B[bd]CR[bd]
;W[ca]CR[ca]C[White lives]))
(;B[ac]CR[ac]
;W[ca]CR[ca]C[White lives])
(;B[ab]CR[ab]
;W[ca]CR[ca]C[White lives]))
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