Problem | 253 |
Created | 2000-11-01 |
Source | Igo-Hatsuyo Ron |
Rating | |
Difficulty | 8 dan |
Average Solve Time | 65 secs |
User Attempts |
90 / 1971 |
Solve Ratio Rating | 5 dan |
| rating history |
(;GM[1]
FF[4]
AP[Hibiscus:2.1]
SZ[19]
ST[3]
;AB[ed][fc][hd][ie][kd][kf][le][me][nc][nd][ob][qf]
AW[ic][jc][kc][lb][md][nb]
PL[B]
C[Black to kill.
Warning: difficult problem!]
(;B[hb]
MN[1]
;W[mc]
(;B[ma]
;W[na]
;B[mb]
;W[la]
;B[mb]
;W[ma]
;B[ld]
;W[lc]
;B[ja]
;W[hc]
;B[gb]
;W[jb]
;B[ka]
;W[ib]
;B[ia]
;W[gc]
LB[gc:18][eb:A]C[Please connect at A]
;B[eb]
;W[gd]
;B[ge]
(;W[oc]
(;B[pc]
;W[od]
;B[ne]
;W[pd]
;B[qc]
;W[qd]
;B[rd]
;W[pb]
;B[qb]
;W[re]
;B[rc]
;W[oa]
;B[qe]
C[RIGHT
]
)(;B[pb]
(;W[pc]
;B[qc]
;W[pd]
(;B[od]
(;W[qb]
;B[rb]
(;W[rd]
;B[qa]
;W[rc]
;B[pe]
;W[qd]
;B[qb]
;W[sb]
;B[qe]
;W[oa]
;B[sa]
)(;W[pe]
;B[oe]
;W[rd]
;B[qa]
;W[rc]
;B[pf]
;W[qd]
;B[qb]
;W[sb]
;B[re]
;W[oa]
))(;W[pe]
;B[oe]
;W[qb]
;B[rb]
;W[rd]
;B[qa]
;W[rc]
;B[pf]
;W[qd]
;B[qb]
;W[sb]
;B[re]
;W[oa]
;B[sa]
))(;B[oe]
;W[qd]
;B[rc]
;W[rd]
;B[rb]
;W[pa]
))(;W[qc]
;B[pc]
;W[od]
;B[ne]
;W[pd]
(;B[qb]
;W[rc]
;B[rb]
;W[qd]
;B[sb]
;W[oa]
;B[qe]
;W[sc]
;B[oe]
)(;B[qd]
;W[qb]
;B[pe]
;W[pa]
;B[oe]
;W[oa]
;B[rc]
;W[rb]
;B[rd]
;W[sb]
))))(;W[pb]
;B[pc]
;W[oa]
;B[qb]
;W[oc]
;B[pd]
;W[od]
;B[ne]
;W[oe]
;B[of]
;W[pe]
;B[qe]
))(;B[ld]
;W[ka]
(;B[ib]
;W[jb]
;B[na]
;W[ma]
)(;B[na]
;W[ma]
))(;B[na]
;W[ma]
))(;B[mb]
;W[gb]
;B[fb]
;W[hc]
C[White is alive.]
))
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