Problem	3503
Created	2003-12-08
Source	Japanese Booklet
Rating

Difficulty	7 dan
Average Solve Time	60 secs
User Attempts	162 / 1814
Solve Ratio Rating	4 dan
	rating history

Black to do something about the 5 stones.

(;AB[qj]AB[ri]AB[qh]AB[qg]AB[rg]AB[sh]AB[pf]AB[pe]AB[pd]AB[pc]AB[qd]AW[qf]AW[rf]AW[qe]AW[rd]AW[qc]AW[qb]AW[oc]AW[nc]AW[ne]AW[of]AW[og]AW[pg]AW[qi]AW[pi]AW[oi] AP[goproblems] (;B[rc] (;W[rb] (;B[re];W[se] (;B[sf];W[sg]C[CHOICE Ko. This is the best for black.RIGHT]) (;B[sc];W[sf]) (;B[sg];W[sf])) (;B[sc];W[sb]) (;B[sf];W[re]) (;B[pb];W[sc])) (;W[re] (;B[sd];W[rb];B[sb]C[CHOICE Ko. This is best for black.RIGHT]) (;B[rb];W[pb];B[sf];W[oe]) (;B[pb];W[rb]) (;B[sc];W[pb]))) (;B[re];W[sf] (;B[rc];W[se] (;B[rb];W[pb] (;B[sd];W[sc];B[sb];W[oe]) (;B[sc];W[oe])) (;B[sc];W[rb]) (;B[sb];W[rb])) (;B[sg];W[se]) (;B[pb];W[rb])) (;B[sf];W[re]) (;B[se];W[re]) (;B[pb];W[rb]) (;B[rb];W[rc]))