(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PB[Black to play and live]AW[rn][qp][rp][mq][nq][oq][pq][sq][mr][ms][ns]AB[qq][rq][nr][or][pr][os][rs]
(;B[sr]C[This looks like the shape for eyes in the corner.]
;W[qr]C[However it leaves behind this double atari.]
;B[rr]
;W[ps])
(;B[qr]C[This is only one eye.]
;W[sr])
(;B[qs]
;W[rr]C[This is the move that stops two eyes.]
;B[qr]
;W[sr])
(;B[rr]C[This move protects against the double atari and threatens the corner eye. Black is alive.]
(;W[sr]
;B[qs])
(;W[qs]
;B[sr]
;W[qr]
;B[ps])))
