(;AB[qr]AB[qq]AB[qp]AB[ro]AB[so]AW[rp]AW[qo]AW[qn]AW[rm]AW[pp]AW[pq]AW[pr]AW[ps]AP[goproblems]
(;B[rs];W[rq]
(;B[rr];W[sr]
(;B[sq]C[RIGHT])
(;B[sp]C[RIGHT]))
(;B[sq];W[rr])
(;B[sr];W[rr]))
(;B[rq];W[rs]
(;B[qs];W[sq];B[sp];W[sr]C[dead])
(;B[sp];W[qs]
(;B[sr];W[rr])
(;B[rr];W[sr]))
(;B[sq];W[qs]))
(;B[rr];W[rs]
(;B[ss];W[sr]
(;B[qs];W[rq])
(;B[rq];W[qs]))
(;B[qs];W[sr]
(;B[ss]C[White can get ko but Black take first])
(;B[rq];W[sq])))
(;B[sq];W[rr]
(;B[rq];W[qs])
(;B[qs];W[rq])))