
(;SZ[19]ST[2]CA[UTF-8]FF[4]GM[1]AP[GOWrite:2.3.48]PM[2]AW[nr][nq][qs][oq][rp][rq][pp][qp]AB[qq][or][pr][sr][pq][rr]PB[Black to play and live]PW[ ]RU[Japanese]KM[0.00]GN[ ]FG[259:]
(
;B[qr]C[If Black connects then there is only room for one eye.]
;W[rs]
;B[os]
)
(
;B[os]C[This maximises the size of the eye space, but White now kills.]
;W[rs]
)

(
;B[rs]C[Making an eye in the corner is the correct play.]
;W[os]C[White can try, but the white stone cannot be rescued.]
;B[qr]
(
;W[ns]
;B[ps]
)
(
;W[ps]
;B[ns]
;W[os]
;B[ps]
)

)

)
