Problem	12108
Created	2008-12-22
Source	Cho Chikun - Elementary Problems
Rating

Difficulty	21.1 kyu
Average Solve Time	28 secs
User Attempts	2981 / 4975
Solve Ratio Rating	12 kyu
	rating history

Black to kill

(;AW[ab]AW[bb]AW[cb]AW[db]AW[eb]AB[bc]AB[be]AB[cc]AB[dc]AB[ec]AB[fc]AB[gb]AB[hc]AP[goproblems] (;B[ea];W[ba];B[da];W[fa];B[fb];W[ca];B[ea]C[RIGHT]) (;B[ba] (;W[fa] (;B[fb];W[ea];B[ca]C[RIGHT]) (;B[ca];W[fb];B[da]C[seki.]) (;B[da];W[ca])) (;W[fb];B[fa]C[RIGHT])) (;B[ca];W[fb] (;B[fa];W[ba]) (;B[ba];W[fa];B[da]C[seki.])) (;B[fb];W[ea] (;B[ca];W[ba]C[]) (;B[ba];W[ca]C[])))