(;GM[1]
FF[4]
AP[Hibiscus:2.1]
SZ[19]
ST[3]
;C[White just played the marked stone. How should
Black respond ?]
PL[B]
TR[sr]AB[on][pn][po][pp][pq][pr][ps][qn][qp][rp]
AW[mm][mn][nl][nm][no][np][nq][ol][or][ql][qo][qr][rm][rn][ro][sr]
(;B[rq]
;W[sp]
(;B[sq]
;W[rr]
(;B[rs]
C[RIGHT
seki]
)(;B[qs]
;W[rs]
)(;B[qq]
;W[rs]
))(;B[rr]
;W[sq]
)(;B[rs]
;W[sq]
))(;B[sp]
;W[rs]
C[White have one eye and Black have none. Black
dies.]
)(;B[sq]
;W[rr]
(;B[qs]
;W[rs]
)(;B[rs]
;W[rq]
)(;B[rq]
;W[rs]
))(;B[rr]
;W[sp]
)(;B[rs]
;W[sp]
)(;B[qq]
;W[sp]
)(;B[qs]
;W[sp]
))