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(No. 95: Feb. 16, 1998)




Elementary level: Answer

Black 1 is the vital point. There is no way for
White to capture this Black stone. White is dead.





Elementary level: Wrong Answer

Black 1 fails. White is alive with 2 to 8.







Intermediate level: Answer

Black 1 is crucial. After White 2,
Black plays 3 and 5 to capture the four
White stones in an Oiotoshi.





Intermediate level: Variation

If White plays 2, Black plays 3 and 5,
still capturing White's four stones in an Oiotoshi.





Intermediate level: Wrong Answer 1

Black 1 first fails to capture the
White stones, White playing 2 to 8.

4: connects at 1





Intermediate level: Wrong Answer 2

Black 1 first also fails.
Nothing happens to White by playing 2 and 4.






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