Problem	17886
Created	2014-09-12
Name	Korean problem academy L2-004
Source	Korean problem academy
Rating

Difficulty	26.1 kyu
Average Solve Time	26 secs
User Attempts	3007 / 4403
Solve Ratio Rating	18 kyu
	rating history

(;AB[ra]AB[rb]AB[qb]AB[pb]AB[pc]AB[oc]AB[nc]AB[mc]AB[mb]AB[ma]AW[oa]AW[ob]AW[pa]AW[sb]AW[rc]AW[qc]AW[pd]AW[qe]AW[od]AW[nd]AW[md]AW[ld]AW[jd]AW[kb]AW[lb]C[Black to make life.]AP[goproblems] (;B[na]C[Good. This is a seki.RIGHT]) (;B[nb];W[na] (;B[qa];W[oa]) (;B[sc];W[sd];B[qa];W[oa]) (;B[sa];W[sc];B[qa];W[oa])) (;B[qa];W[na] (;B[nb]) (;B[sc];W[sd];B[nb]) (;B[sa];W[sc];B[nb])) (;B[sc];W[na] (;B[sa];W[rd]C[This is a dead shape.]) (;B[sd];W[se] (;B[rd];W[qd] (;B[re];W[rf]) (;B[sa];W[re])) (;B[re];W[rd]) (;B[sa];W[rd])) (;B[rd];W[qd] (;B[sd];W[re] (;B[sa];W[se]) (;B[se];W[sf])) (;B[re];W[rf] (;B[sf];W[se] (;B[sd];W[se]) (;B[sa];W[sd])) (;B[se];W[sf] (;B[sa];W[sd]) (;B[qf];W[sd])) (;B[qf];W[se] (;B[rg];W[sd]) (;B[sf];W[sd]) (;B[sa];W[sd]))) (;B[se];W[re];B[sa];W[sf]))) (;B[sa];W[na];B[sc]))