(;AB[qr]AB[rq]AB[sr]AB[ps]AB[os]AB[or]AB[oq]AB[np]AB[mp]AB[op]AB[lq]AB[lr]AB[ms]AB[rp]AB[qp]AW[pr]AW[pq]AW[qq]AW[sp]AW[so]AW[ro]AW[qo]AW[po]AW[pp]AW[mr]AW[nr]AB[mq]AW[ls]AW[ks]AW[kr]AW[kq]AW[kp]AW[lp]AW[mo]AW[no]AW[oo]C[Black to play.]AP[goproblems]
(;B[rs]
(;W[sq]
(;B[ns];W[rr];B[rq];W[rp];B[rr]C[RIGHT])
(;B[rr];W[ns])
(;B[nq];W[rr];B[rq];W[rp];B[rr]C[RIGHT]))
(;W[ns];B[sq]C[RIGHT]))
(;B[ns];W[rs]
(;B[qs];W[rr]
(;B[ss];W[rr]
(;B[rs];W[sq])
(;B[sq];W[rs]))
(;B[sq];W[nq]))
(;B[rr];W[qs];B[ss];W[qs])
(;B[sq];W[qs])
(;B[ss];W[sq]
(;B[rr];W[qs])
(;B[qs];W[rr])))
(;B[sq];W[rs]
(;B[ns];W[qs])
(;B[qs];W[ns]))
(;B[nq];W[rs]
(;B[qs];W[rr]
(;B[ss];W[rr]
(;B[rs];W[sq])
(;B[sq];W[rs]))
(;B[sq];W[ns]))
(;B[rr];W[qs];B[ss];W[qs])
(;B[sq];W[qs])
(;B[ss];W[qs];B[rr];W[qs]))
(;B[qs];W[ns]
(;B[sq];W[rs])
(;B[rs];W[sq])
(;B[nq];W[ms]
(;B[rs];W[sq])
(;B[sq];W[rs])))
(;B[rr];W[ns])
(;B[ss];W[ns]))