(;GM[1]FF[4]AP[Drago:4.22.03]SZ[19]CA[UTF-8]AW[qr][rr][rq][qp][pp][oq][nq][nr][ms][lr]AB[qq][pq][pr][np][op][mp][mq][mr][kp][jp][jr]C[Black to play and rescue three stones]
(;B[or]C[The simple play fails];W[ns];B[ks]
;W[ls]C[Black is behind in the race to capture])
(;B[os]C[This is the correct play];W[ns]
(;B[ks]C[Black now plays here to win the capturing race];W[kr];B[js];W[ls];B[kq])
(;B[kr]C[Filling this liberty is not fast enough];W[qs];B[lq]
;W[ps]C[Black loses the race])))
