(;GM[1]FF[4]AP[Drago:4.22.03]SZ[19]CA[UTF-8]AB[rp][ro][qo][po][no][np][nq][lq][nn]AW[op][pp][qp][rq][pr]C[Black to play]
(;B[sr]C[If Black tries this then White can expand the eye space and live.];W[sq];B[rr];W[qq];B[oq];W[or];B[nr];W[os])
(;B[sq]C[This reduces the eye space but leads to Ko.];W[sr];B[rr];W[sp];B[qq];W[qr];B[sq])
(;B[or]C[Playing from the side allows White to make eyes easily.];W[qr])
(;B[rr]C[This is the correct first play.];W[sq]
(;B[qq]C[This is the play that ruins White's liberty count.];W[qr]
(;B[sr];W[pq];B[sp];W[qq]
;B[or]C[White dies.])
(;B[sp]C[This is slightly better if
White leaves the position for Ko threats later.];W[pq]
;B[sr]C[The position ends the same.]))
(;B[qr]C[Black should not play here,
else White lives.];W[qq];B[oq];W[or];B[nr];W[rs];B[sr]
;W[os]C[This is not a dead shape.])))
