Problem	4006
Created	2004-02-28
Source	adum vs anna
Rating

Difficulty	23.5 kyu
Average Solve Time	17 secs
User Attempts	18010 / 25614
Solve Ratio Rating	20 kyu
	rating history

(;AB[pq]AB[pp]AB[qp]AW[po]AW[qn]AB[pn]AB[nn]AB[on]AW[op]AW[no]AW[mn]AW[mp]AW[mm]AW[om]AW[pm]AB[nk]AB[ok]AB[pk]AB[ql]AB[qm]TR[qn]C[how to answer the triangled stone?]AP[goproblems] (;B[qo];W[nm] (;B[rn]C[RIGHT]) (;B[oo];W[po])) (;B[rn];W[qo] (;B[nm];W[nl]) (;B[ro];W[oo])) (;B[oo];W[nm]) (;B[nm];W[nl]) (;B[pl];W[nm]) (;B[ol];W[nm]) (;B[ro];W[rn]))