Problem	3926
Created	2004-02-15
Source	a game
Rating

Difficulty	22.5 kyu
Average Solve Time	54 secs
User Attempts	12238 / 20200
Solve Ratio Rating	15 kyu
	rating history

(;SZ[19]AW[fk]AW[cl]AW[el]AW[gl]AW[hl]AW[il]AW[cm]AW[em]AW[cn]AW[en]AW[fn]AW[hn]AW[in]AW[jo]AW[cp]AW[dp]AW[cq]AW[gq]AW[hq]AW[jq]AW[dr]AW[fr]AB[bj]AB[dj]AB[hj]AB[jj]AB[gk]AB[bl]AB[fl]AB[jl]AB[bm]AB[fm]AB[gm]AB[jm]AB[dn]AB[gn]AB[jn]AB[ho]AB[io]AB[ep]AB[fp]AB[gp]AB[hp]AB[fq]C[White to win this semeai unconditionally. (marked white stone only relevant to comments)]AW[ko]TR[ko]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[NZ]KM[5.50]PW[White]PB[Black]PL[W] (;W[go];B[fo] (;W[hm];B[go] (;W[eq];B[im] (;W[eo];B[ik];W[ip]C[RIGHT]) (;W[ip];B[ik];W[eo]C[RIGHT])) (;W[ip];B[ik] (;W[eq];B[hk];W[eo]C[RIGHT]) (;W[eo];B[hk];W[eq]C[RIGHT])) (;W[eo];B[ik] (;W[ip];B[hk];W[eq]C[RIGHT]) (;W[eq];B[hk];W[ip]C[RIGHT]))) (;W[eo];B[im];W[hm];B[go] (;W[eq];B[ik];W[ip]C[RIGHT]) (;W[ip];B[ik];W[eq]C[RIGHT])) (;W[eq];B[hm];W[im];B[go] (;W[ip];B[ik];W[eo]C[RIGHT]) (;W[eo];B[ik];W[ip]C[RIGHT])) (;W[ip];B[hm];W[im];B[go] (;W[eq];B[ik];W[eo]C[RIGHT]) (;W[eo];B[ik];W[eq]C[RIGHT]))) (;W[hm];B[go] (;W[eq];B[hk] (;W[ip];B[ik] (;W[eo];B[im]) (;W[fo];B[im])) (;W[eo];B[ik] (;W[ip];B[im]) (;W[fo];B[im])) (;W[fo];B[ik] (;W[ip];B[im]) (;W[eo];B[im]))) (;W[eo];B[ik] (;W[eq];B[hk] (;W[ip];B[im]) (;W[fo];B[im])) (;W[ip];B[hk] (;W[eq];B[im]) (;W[fo];B[im])) (;W[fo];B[hk] (;W[ip];B[im]) (;W[eq];B[im]))) (;W[fo];B[ik] (;W[eo];B[hk] (;W[eq];B[im]) (;W[ip];B[im])) (;W[eq];B[hk] (;W[ip];B[im]) (;W[eo];B[im])) (;W[ip];B[hk] (;W[eq];B[im]) (;W[eo];B[im]))) (;W[ip];B[ik] (;W[eq];B[hk] (;W[eo];B[im]) (;W[fo];B[im])) (;W[fo];B[hk] (;W[eq];B[im]) (;W[eo];B[im])) (;W[eo];B[hk] (;W[eq];B[im]) (;W[fo];B[im])))))