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life and death
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+4
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Problem | 1133 |
Created | 2001-11-01 |
Source | |
Rating | |
Difficulty | 10 kyu |
Average Solve Time | 33 secs |
User Attempts |
2068 / 7187 |
Solve Ratio Rating | 4 kyu |
| rating history |
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[13]KM[0.00]TM[]
PW[White]PB[Black]AW[cb][dc][bd][cd][dd][ae]AB[db][eb][fc][be][ce][de][ee][bg]C[Black plays, White dies. (Be careful of a Ko.) ]
(;B[ba]CR[ba]
;W[ca]CR[ca]
;B[bb]CR[bb]
;W[bc]CR[bc]
(;B[da]CR[da]C[RIGHT B13 is the vital point. After White C13, Black B12 destroys White's eye shape. ])
(;B[ab]CR[ab]
;W[ac]CR[ac]))
(;B[bb]CR[bb]
;W[ba]CR[ba]
(;B[bc]CR[bc]
;W[ab]CR[ab]
;B[ac]CR[ac]
;W[ad]CR[ad]
;B[aa]CR[aa]C[White gets a ko.])
(;B[ac]CR[ac]
;W[bc]CR[bc]))
(;B[ac]CR[ac]
;W[bb]CR[bb]
(;B[bc]CR[bc]
;W[ab]CR[ab]
(;B[ca]CR[ca]
;W[ba]CR[ba]
;B[af]CR[af]
;W[ad]CR[ad])
(;B[ba]CR[ba]
;W[ca]CR[ca]))
(;B[ab]CR[ab]
;W[bc]CR[bc]
(;B[ca]CR[ca]
;W[ba]CR[ba])
(;B[ba]CR[ba]
;W[ca]CR[ca]
;B[aa]CR[aa]
;W[ad]CR[ad])
(;B[af]CR[af]
;W[ad]CR[ad]
(;B[ba]CR[ba]
;W[ca]CR[ca]
;B[da]CR[da]
;W[aa]CR[aa])
(;B[ca]CR[ca]
;W[ba]CR[ba])))
(;B[ba]CR[ba]
;W[ab]CR[ab]
;B[ca]CR[ca]
;W[bc]CR[bc]
(;B[af]CR[af]
;W[ad]CR[ad])
(;B[aa]CR[aa]
;W[da]CR[da]))))
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