Problem	12940
Created	2009-07-21
Name	Black to kill
Source	KGS 8k game
Rating

Difficulty	20.7 kyu
Average Solve Time	31 secs
User Attempts	2458 / 4653
Solve Ratio Rating	10 kyu
	rating history

White thinks that this shape is alive, prove him wrong.

(;AB[ga]AW[ha]AB[gb]AB[hb]AB[ic]AB[hd]AB[id]AB[jd]AW[ib]AW[jc]AW[kd]AW[le]AW[md]AW[ld]AW[lc]AW[mb]AW[ma]AW[kb]AB[ke]AB[kf]AB[lg]AB[mf]AB[ne]AB[nd]AB[nc]AB[mc]AB[nb]AB[na]AW[ia]C[Black to move]AP[goproblems] (;B[ka] (;W[lb] (;B[jb];W[ja];B[jb]C[CorrectRIGHT]) (;B[la] (;W[ja]C[White lives]) (;W[jb]C[White lives])) (;B[ja];W[jb]C[White lives])) (;W[jb] (;B[lb];W[la];B[lb]C[CorrectRIGHT]) (;B[ja] (;W[la]C[White lives]) (;W[lb]C[White lives])) (;B[la];W[lb]C[White lives]))) (;B[jb];W[ja]C[White lives]) (;B[lb];W[la]C[White lives]) (;B[ja];W[jb] (;B[ka];W[la]C[White lives]) (;B[la];W[lb]C[White lives]) (;B[lb];W[la]C[White lives])) (;B[la];W[lb] (;B[ka];W[ja]C[White lives]) (;B[ja];W[jb]C[White lives]) (;B[jb];W[ja]C[White lives])) (;B[lf];W[ka]C[White lives]) (;B[me];W[ka]C[White lives]))