(;GM[1]FF[4]AP[Drago:4.22.03]SZ[19]CA[UTF-8]AW[qa][qb][qc][ma][mb][nc][oc][od][oe][ne][me][md]AB[la][lb][lc][mc][ld][le][lf][nf][mf][of][pf][pe][pd][qd][re][rc]
[rb]
(;B[oa];W[ob];B[nb]
;W[pa]C[White has two ways to make two eyes.])
(;B[pc]
(;W[pb]
(;B[ob]C[If Black here, white can live.]
(;W[oa])
(;W[nb]C[However this white fails.];B[oa]))
(;B[oa]C[This is the killing play here.]
(;W[ob];B[nb])
(;W[nb];B[ob])))
(;W[ob]C[However this is the correct white response to live.]
(;B[pb];W[oa])
(;B[oa];W[pa];B[pb];W[na];B[ra];W[oa])))
(;B[ob]C[This is the correct killing play.];W[nb];B[pc];W[pb];B[oa]))
