Problem	5561
Created	2004-11-16
Name	Go Seigen Tsumego No.90
Source	Go Seigen
Rating

Difficulty	7 dan
Average Solve Time	89 secs
User Attempts	141 / 1266
Solve Ratio Rating	3 dan
	rating history

Black to play.

(;AB[qa]AB[pb]AB[pc]AB[od]AB[qd]AB[qf]AB[nc]AB[mc]AB[lc]AB[jc]AB[kb]AW[lb]AW[mb]AW[nb]AW[ob]AW[oc]AW[oa]AW[pa]AW[qb]AW[rc]SZ[19] (;B[ra];W[la] (;B[rd];W[sc]C[Wrong.]) (;B[sc];W[rd];B[re] (;W[sb] (;B[sd];W[se];B[sd]C[RIGHT]) (;B[qc]TR[sd]TR[rb])) (;W[sd];B[rb]C[RIGHT]))) (;B[la];W[ra]C[Wrong.]))