Problem	3159
Created	2003-10-25
Source
Rating

Difficulty	10.2 kyu
Average Solve Time	55 secs
User Attempts	2889 / 8437
Solve Ratio Rating	5 kyu
	rating history

Black to kill. If your intuition fails, try a "process of elimination"

(;AB[cs][bs][br][cq][cp][do][cn][fo][go][hp][iq][ir][fs][fr][fq][eq]AW[ds][dr][cr][er][dq][dp][ep][fp][gq][gr]SZ[19] (;B[gs];W[hs] (;B[hr];W[es] (;B[fq];W[gs];B[fr]C[RIGHT Well done !]) (;B[is];W[gs]C[White is alive]) (;B[fs];W[gs]C[White is alive]) (;B[fr];W[fq]C[White is alive]) (;B[gs] (;W[fs]C[CHOICE];B[fq]C[RIGHT Well Done !]) (;W[fq]C[CHOICE];B[fs];W[fr];B[gs]C[RIGHT Well Done !!]))) (;B[gp];W[es] (;B[fq];W[hr]C[White is alive]) (;B[fr];W[hr]C[White is alive]) (;B[is];W[hr]C[White is alive])) (;B[is];W[hr] (;B[hq];W[es]C[White is alive]) (;B[gp];W[es]C[White is alive]))) (;B[hs];W[gs]C[White is alive]) (;B[gp];W[gs]C[White is alive]) (;B[es];W[gs]C[White is alive]) (;B[hr];W[gs]C[White is alive]))