(;GM[1]FF[3]
RU[New Zealand]SZ[2]
;B[aa];W[bb]C[looks like a jigo, but...
];B[ab]
C[b tries to use superko to her advantage
];W[ba]
C[w must capture to overcome b's lead
]
(;B[ab]C[w is leading, so can choose between capture and pass
]
(;W[aa];B[ab];W[ba];B[aa]C[superko prevents w from capturing
];W[tt]
C[b wins by 1
])
(;W[tt]C[passing turns out to be bad though
];B[aa]
(;W[ba];B[tt]C[superko prevents w from capturing
];W[tt]
C[b wins by 1
])
(;W[bb];B[tt]C[superko prevents w from capturing
];W[tt]
C[b wins by 1
])
)
)
(;B[aa]C[this is not so hot for b...
];W[ab]
C[superko prevents b from capturing
];B[tt]C[w wins by 4
])
)