Problem	12742
Created	2009-06-03
Source
Rating

Difficulty	14.1 kyu
Average Solve Time	41 secs
User Attempts	2435 / 6152
Solve Ratio Rating	6 kyu
	rating history

I think everything is covered... please comment if something is missing.

(;AB[cb]AB[dc]AB[dd]AB[ed]AB[fd]AB[fc]AB[be]AW[db]AW[eb]AW[ec]AW[fb]AW[hc]AW[he]AW[bh]AW[cf]AW[ef]AW[gf]AW[gc]AW[bb]AB[ca]AW[bc]AB[cc]AW[ce]AB[bd]AW[bf]AB[ba]C[White to kill]AP[goproblems] (;W[ab];B[ae] (;W[ad];B[aa]) (;W[aa];B[ac]) (;W[ac]C[RIGHT]) (;W[cd];B[ac]C[Ko]) (;W[af];B[ac]C[Ko])) (;W[ac];B[ab] (;W[aa];B[ad]) (;W[cd];B[ad]) (;W[ae];B[ad]) (;W[ad];B[ae])) (;W[cd];B[ab] (;W[ae];B[ac];W[bc];B[ad]) (;W[ad];B[ac]) (;W[ac];B[ad])) (;W[ae];B[ab] (;W[ad];B[ac];W[bc];B[cd]) (;W[ac];B[ad]) (;W[cd];B[ac];W[bc];B[ad])) (;W[ad];B[ab] (;W[ae];B[ac];W[bc] (;B[cd]) (;B[af])) (;W[ac];B[ae]) (;W[cd];B[ac])) (;W[aa];B[ab]))