Problem	15868
Created	2012-02-18
Source
Rating

Difficulty	11.7 kyu
Average Solve Time	41 secs
User Attempts	820 / 2044
Solve Ratio Rating	7 kyu
	rating history

(;AB[ap]AB[bp]AB[bq]AB[cq]AB[dr]AW[ao]AW[bo]AW[co]AW[cp]AW[dp]AW[dq]AW[er]AW[es]AW[fq]AW[ep]C[Black to live.]AP[goproblems] (;B[ar];W[cr] (;B[br];W[ds];B[bs]C[RIGHT]) (;B[bs];W[ds] (;B[br]C[RIGHT]) (;B[cs];W[dr];B[br]C[RIGHT])) (;B[cs];W[ds];B[bs];W[dr];B[br]C[RIGHT])) (;B[br];W[ds] (;B[ar];W[bs]) (;B[bs];W[ar]) (;B[cs];W[ar];B[as];W[bs]C[White kills with double ko.]) (;B[cr];W[cs])) (;B[cr];W[ar] (;B[br];W[bs]) (;B[bs];W[ds]) (;B[ds];W[bs]C[Bent-four.])) (;B[bs];W[ar] (;B[br];W[ds]) (;B[cr];W[ds]) (;B[ds];W[cr])) (;B[cs];W[ar];B[br];W[ds];B[as];W[bs]C[White kills with double ko.]))