(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[4]KM[0.00]
PB[Black to play]AW[ab][bb][cd]AB[ba][ca][da][db][ac][dc][dd]C[Black to play and win]
;B[bc]
;W[cc]
;B[cb]
;W[aa]
;B[cb]C[All white stones are dead]
(;W[db]
;B[ba]
;W[ab]
;B[bd]
;W[ca]
;B[bb]C[Black lives easily])
(;W[bd]
;B[ba]
;W[db]
;B[ab]
;W[ca]
;B[da]
;W[dc]
;B[ca]C[Also Black lives]))
