(;GM[1]FF[4]AP[Drago:4.22.03]SZ[19]CA[UTF-8]PB[Black to play and live]AB[rs][rr][qq][oq][or][pr][pp][qp]AW[qs][ps][os][nq][nr][ns][np][oo][po][qo][ro][sq]
(;B[sr]C[This makes one eye.];W[qr]C[But this stops Black making a second.]
(;B[rq];W[op])
(;B[op];W[rq]))
(;B[sp]C[This play does not make two eyes either.];W[rp];B[rq];W[sr];B[ss]
;W[sq]C[This falsifies the edge eye so Black just has one.])
(;B[rp]C[This is the correct move.];W[sp]
;B[sr]C[Now Black makes the corner eye and White can take neither eye away.];W[qr];B[op]
(;W[rq]C[This is self-atari.];B[so])
(;W[so]
;B[rq]C[Black just connects.])))
