(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
PB[Black to play and defend the area]AW[np][qp][rp][sp][oq][pq][mr][nr][os]AB[qq][rq][sq][or][pr][ns]
(;B[rs]C[Sometimes the 2-1 is the eye-making point.]
;W[qr]
;B[ps]
;W[rr]C[But not in this case])
(;B[ps]C[Taking here fails too.]
;W[rr]
(;B[rs]
;W[qr])
(;B[qr]
;W[rs]))
(;B[rr]C[In this case it is the 2-2 point that works.]
(;W[qs]
;B[rs]
(;W[ps]
;B[qr]
;W[os]
;B[ps])
(;W[ms]C[If white takes here ...]
(;B[ps]C[.. then this is self-atari.])
(;B[qr]C[This is the way to make two eyes.])))
(;W[ps]
;B[qs])
(;W[rs]
;B[qs])
(;W[ms]
;B[qs])))
