(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
AW[rn][lp][op][pp][qp][rp][nq][oq][lr][mr][pr][ns]AB[pq][qq][rq][sq][nr][or][ms][ss]KK[^Bestiary^Ishinoshita]
;B[os]
(;W[ps]
(;B[qr]
;W[ns]
;B[qs]
(;W[or]
;B[rr])
(;W[rr]
;B[or]
;W[os]
;B[nr]C[the stone at N1 prevents the connection]))
(;B[qs]C[same result]
;W[ns]
;B[qr]
;W[or]
;B[rr]))
(;W[qs]
(;B[qr]
;W[rs]
;B[ps]
;W[sr]
;B[rr]C[with a white stone at T4, Black would die])
(;B[rs]
;W[rr]C[here too, hte liberty at T4 is essential]))
(;W[qr]
;B[rr]
;W[qs]
;B[rs]C[again, a liberty at T4 save Black]))