invalid problem set
Problem | 3412 |
Created | 2003-11-26 |
Source | |
Rating | |
Difficulty | 8 dan |
Average Solve Time | 112 secs |
User Attempts |
153 / 2907 |
Solve Ratio Rating | 5 dan |
| 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[pc][qd][qe][ho][dq]AB[pd][dp]LB[nc:B][od:A]C[Does the ladder work for white? If yes, play it (at A), else play B.]PL[W]
(;W[od]CR[od]
;B[pe]CR[pe]
;W[pf]CR[pf]
;B[oe]CR[oe]
;W[ne]CR[ne]
;B[of]CR[of]
;W[og]CR[og]
;B[nf]CR[nf]
;W[mf]CR[mf]
;B[ng]CR[ng]
;W[nh]CR[nh]
;B[mg]CR[mg]
;W[lg]CR[lg]
;B[mh]CR[mh]
;W[mi]CR[mi]
;B[lh]CR[lh]
;W[kh]CR[kh]
;B[li]CR[li]
;W[lj]CR[lj]
;B[ki]CR[ki]
;W[ji]CR[ji]
;B[kj]CR[kj]
;W[kk]CR[kk]
;B[jj]CR[jj]
;W[ij]CR[ij]
;B[jk]CR[jk]
;W[jl]CR[jl]
;B[ik]CR[ik]
;W[hk]CR[hk]
;B[il]CR[il]
;W[im]CR[im]
;B[hl]CR[hl]
;W[gl]CR[gl]
;B[hm]CR[hm]
(;W[hn]CR[hn]
;B[gm]CR[gm]
;W[fm]CR[fm]
;B[gn]CR[gn]
(;W[go]CR[go]
;B[fn]CR[fn]
;W[en]CR[en]
;B[fo]CR[fo]
;W[fp]CR[fp]
;B[eo]CR[eo]
;W[do]CR[do]
;B[ep]CR[ep]
(;W[cp]CR[cp]
;B[eq]CR[eq]
(;W[er]CR[er]
;B[fq]CR[fq]
(;W[gq]CR[gq]
;B[fr]CR[fr]
(;W[gr]CR[gr]
;B[gp]CR[gp]
;W[fs]CR[fs]C[RIGHT
Oiotoshi])
(;W[fs]CR[fs]
;B[gr]CR[gr]
;W[hr]CR[hr]
;B[gp]CR[gp]
(;W[gs]CR[gs]
;B[hq]CR[hq])
(;W[hp]CR[hp]
;B[hq]CR[hq])))
(;W[fr]CR[fr]
;B[gq]CR[gq]C[3 liberties = failure]))
(;W[fq]CR[fq]
;B[er]CR[er]C[3 liberties = failure]))
(;W[eq]CR[eq]
;B[cp]CR[cp]C[3 liberties = failure]))
(;W[fn]CR[fn]
;B[go]CR[go]
;W[gp]CR[gp]
;B[fo]CR[fo]
;W[eo]CR[eo]
;B[fp]CR[fp]
(;W[fq]CR[fq]
;B[ep]CR[ep]C[3 liberties = failure])
(;W[ep]CR[ep]
;B[fq]CR[fq]C[3 liberties = failure])))
(;W[gm]CR[gm]
;B[hn]CR[hn]
(;W[gn]CR[gn]
;B[in]CR[in]
;W[jn]CR[jn]
;B[jm]CR[jm]
;W[io]CR[io]
;B[kl]CR[kl])
(;W[in]CR[in]
;B[gn]CR[gn]
;W[fn]CR[fn]
;B[go]CR[go]
;W[gp]CR[gp]
;B[fo]CR[fo]
;W[eo]CR[eo]
;B[fp]CR[fp]
(;W[fq]CR[fq]
;B[ep]CR[ep]C[3 liberties = failure])
(;W[ep]CR[ep]
;B[fq]CR[fq]C[3 liberties = failure]))))
(;W[nc]CR[nc]C[The ladder actually works...]))
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