Problem	6919
Created	2005-07-17
Source	korean problems
Rating

Difficulty	2.5 kyu
Average Solve Time	31 secs
User Attempts	1796 / 5430
Solve Ratio Rating	5 kyu
	rating history

(;AB[rb]AB[qb]AB[ra]AB[pa]AB[oa]AB[nb]AB[nc]AW[ob]AW[pb]AW[oc]AW[od]AW[qc]AW[rc]AW[sb]AW[pe]AW[qe]AW[re]AW[se]AB[sf]AB[rf]AB[qf]AB[pf]AB[of]AB[oe]AB[nd]AB[ne]C[Black to kill]AP[goproblems] (;B[pc];W[pd]) (;B[pd];W[pc] (;B[qd];W[sc] (;B[sd];W[rd]) (;B[rd];W[sd];B[qd];W[sa]C[White is alive])) (;B[sc] (;W[qd] (;B[sd]C[CHOICERIGHT]) (;B[rd];W[sd])) (;W[sd] (;B[qd]C[CHOICERIGHT]) (;B[rd];W[qd]))) (;B[rd];W[qd]) (;B[sd];W[sc])) (;B[sc];W[pd] (;B[rd];W[sd]) (;B[sd];W[rd])) (;B[qd];W[pd]) (;B[rd];W[pd]) (;B[sd];W[pd]))