(;GM[1]FF[4]AP[Drago:4.22.03]SZ[19]CA[UTF-8]AB[rs][rq][rp][qp][pp][op][nq][nr][ns][pr][rn][no]AW[rr][sq][qq][pq][oq][or][os][ps]C[Black to play and kill]
(;B[qr]C[This looks like a clever play];W[qs];B[sp];W[ss]
;B[sr]C[This ends in ko])
(;B[sr]
;W[ss]C[This is also ko])
(;B[sp]C[This is the correct first play];W[sr]
;B[qr]C[Now this is the clever play];W[qs]
;B[qr]C[Whichever stone White takes leaves a snap-back]))
