Problem | 654 |
Created | 2001-06-02 |
Source | |
Rating | |
Difficulty | 11.6 kyu |
Average Solve Time | 33 secs |
User Attempts |
4333 / 12576 |
Solve Ratio Rating | 5 kyu |
| rating history |
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]
SZ[19]RU[Japanese]KM[0.00]TM[]
AW[ea][fa][fb][fc][fd][be][ce][de][ee]AB[da][eb][ac][bc][cc][dc][ec]C[white to kill]PL[W]
(;W[ba]CR[ba]
;B[cb]CR[cb]
(;W[ca]CR[ca]C[RIGHT
ko is best])
(;W[ab]CR[ab]
;B[ca]CR[ca]))
(;W[ca]CR[ca]
;B[ba]CR[ba]
(;W[db]CR[db]
;B[cb]CR[cb]
(;W[da]CR[da]
;B[ab]CR[ab])
(;W[ab]CR[ab]
;B[da]CR[da]))
(;W[cb]CR[cb]
;B[bb]CR[bb]))
(;W[cb]CR[cb]
;B[bb]CR[bb]
(;W[ba]CR[ba]
;B[db]CR[db])
(;W[ca]CR[ca]
;B[ba]CR[ba]))
(;W[bb]CR[bb]
;B[cb]CR[cb]
(;W[ba]CR[ba]
;B[ca]CR[ca])
(;W[aa]CR[aa]
;B[ab]CR[ab]))
(;W[db]CR[db]
;B[cb]CR[cb])
(;W[ab]CR[ab]
;B[cb]CR[cb]
(;W[ba]CR[ba]
;B[bb]CR[bb])
(;W[bb]CR[bb]
;B[ba]CR[ba])
(;W[ca]CR[ca]
;B[ba]CR[ba]))
(;W[aa]CR[aa]
;B[ba]CR[ba]
;W[bb]CR[bb]
;B[ab]CR[ab]))
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