Problem	10937
Created	2008-02-21
Name	White to kill Black.
Source	White to kill Black.
Rating

Difficulty	4 kyu
Average Solve Time	43 secs
User Attempts	1007 / 2512
Solve Ratio Rating	7 kyu
	rating history

White to kill Black.

(;AP[goproblems]AB[or]AB[os]AB[ms]AB[mr]AB[nr]AB[qr]AW[ls]AW[lr]AW[lq]AW[mq]AW[nq]AW[oq]AW[pq]AW[pp]AW[po]C[White to kill Black.](;W[pr];B[ps](;W[rq](;B[rr](;W[sr];B[qq];W[rp];B[qp](;W[qo]C[RIGHT])(;W[ro]C[RIGHT])(;W[rn]C[RIGHT]))(;W[qs];B[rs];W[sr];B[qq];W[rp]C[RIGHT])(;W[rs];B[qq];W[rp];B[qp];W[ro];B[qs];W[sr];B[sq];W[sp];B[qo];W[qn];B[ss]C[Only ko]))(;B[qq](;W[rp];B[qp];W[qo];B[rr];W[sr]C[RIGHT])(;W[qs];B[rs];W[rp];B[rr];W[sr]C[RIGHT])(;W[rr];B[qp];W[rs];B[qs];W[rp];B[qo];W[qn];B[ro];W[rn];B[so];W[sn]C[RIGHT])))(;W[qq];B[rr](;W[rq];B[sr])(;W[sq];B[sr]))(;W[rr](;B[rq];W[rs]C[RIGHT])(;B[qq];W[rq];B[qp];W[rs];B[qs];W[rp];B[qo];W[qn];B[ro];W[rn];B[so];W[sn]C[RIGHT]))(;W[qs];B[rs];W[rq]C[RIGHT]))(;W[qq];B[pr])(;W[rq];B[pr])(;W[rr];B[pr];W[qs];B[qq];W[rq];B[qp];W[rp];B[qo];W[qn];B[ro];W[rn];B[so];W[sn];B[sp];W[sq]C[Only Seki])(;W[qs];B[pr]))