Only four points to choose from...?!
(japanese rules)
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[4]KM[0.00]
PW[Weiß]PB[Schwarz]AW[da][db][bc][dc][bd][dd]AB[aa][ca][ab][cb][ac][ad]C[No komi, no prisoners - Black to play and win!
]
(;B[bb]LB[cc:A]CR[bb]C[Making an eye is correct - now White can't prevent A. RIGHT])
(;B[cc]CR[cc]
;W[bb]CR[bb]
;B[cd]CR[cd]
;W[ba]CR[ba]C[This is only a jigo!])
(;B[cd]CR[cd]
;W[cc]CR[cc]C[Black will lose aaaalllll his stones...]
;B[bb]CR[bb]C[ A one point loss - at least :)])
(;B[ba]CR[ba]
;W[cc]CR[cc]C[Black is dead!]))
