Problem	10022
Created	2007-05-01
Source	from tournament
Rating

Difficulty	9 dan
Average Solve Time	50 secs
User Attempts	79 / 888
Solve Ratio Rating	4 dan
	rating history

White needs a few more points to win this game. However, White found the move only after losing the game by 8.5. Can you find this move? The triangle is the edge of a black moyo. White has many ko threats.

(;AB[md]AB[kd]AB[jf]AB[jh]AB[od]AB[oe]AB[pf]AB[qe]AB[qd]AB[pc]AB[of]AB[rc]AB[rb]AW[nd]AW[nf]AW[mf]AW[lf]AW[og]AW[pg]AW[nh]AW[qg]AW[qf]AW[re]AW[rd]AW[qc]AW[rf]TR[je]TR[jd]TR[jg]AP[goproblems] (;W[ld] (;B[lc];W[mc];B[le];W[me];B[ld] (;W[oc];B[ne] (;W[pd];B[nc];W[pb]C[RIGHT]) (;W[nc]C[CHOICE];B[qb])) (;W[nc];B[ne]C[CHOICE] (;W[oc];B[qb]) (;W[pd];B[qb];W[oc];B[pe]C[CHOICE]))) (;B[mc];W[ke] (;B[lc];W[je]C[RIGHT]) (;B[je] (;W[lc]C[RIGHT]) (;W[kc]C[RIGHT])))) (;W[me];B[mc]C[CHOICE] (;W[oc];B[nc];W[pd];B[pe]C[CHOICE]) (;W[nc];B[ne]C[CHOICE])) (;W[ne];B[nc]C[CHOICE]))