Problem	18612
Created	2014-12-13
Source	Tsumego Pro Android
Rating

Difficulty	3.9 dan
Average Solve Time	52 secs
User Attempts	124 / 446
Solve Ratio Rating	3 kyu
	rating history

Black to live in the corner.

(;AB[pb]AB[pc]AB[pd]AB[pe]AB[pf]AB[rb]AW[rd]AW[qe]AW[qf]AW[pg]AW[ph]AW[qi]AW[qj]AB[og]AB[oh]AB[pi]AB[oi]AW[of]AW[oe]AW[od]AW[md]AW[oc]AW[nb]AP[goproblems] (;B[qg];W[qh] (;B[rf];W[rg] (;B[qd];W[rc];B[re];W[qg] (;B[qc];W[sf] (;B[sc];W[se];B[qa]C[RIGHT]) (;B[qa];W[sb];B[sa];W[ra]C[ko]) (;B[sb];W[qa])) (;B[sc];W[sf];B[qc];W[se];B[qa]C[RIGHT])) (;B[rc];W[qd];B[qc];W[qa];B[pa];W[sc];B[sb];W[ra])) (;B[rg];W[rf];B[rc];W[qd];B[qc];W[qa];B[pa];W[sc];B[sb];W[ra];B[sd];W[se]) (;B[qd];W[rc];B[rg];W[rf];B[sf];W[re];B[qc];W[qa]) (;B[rc];W[qd];B[rg];W[rf]) (;B[re];W[rf])) (;B[rf];W[rg] (;B[qd];W[rc];B[re];W[qg] (;B[qc];W[sf] (;B[sc];W[se];B[qa]C[RIGHT]) (;B[qa];W[sb];B[sa];W[ra]C[ko]) (;B[sb];W[qa])) (;B[sc];W[sf];B[qc];W[se];B[qa]C[RIGHT])) (;B[rc];W[qd];B[qc];W[qa]) (;B[re];W[qd])) (;B[qd];W[rc];B[qg];W[qh];B[rg];W[rf];B[sf];W[re];B[qc];W[qa]) (;B[rc];W[qd] (;B[qc];W[qa] (;B[pa];W[sc];B[sb];W[ra]) (;B[qg];W[qh] (;B[pa];W[sc];B[rg];W[rf];B[sb];W[ra];B[sd];W[se]) (;B[rg];W[rf];B[pa];W[sc];B[sb];W[ra];B[sd];W[se]))) (;B[qg];W[qh];B[rg];W[rf];B[qc];W[qa];B[pa];W[sc];B[sb];W[ra];B[sd];W[se])) (;B[qc];W[qa]) (;B[sb];W[qd]) (;B[re];W[rf];B[rc];W[qd];B[qc];W[qa];B[pa];W[sc];B[sb];W[ra]) (;B[pa];W[rc]) (;B[rg];W[qg]))