Go (Baduk, Weiqi) problems with solutions

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Life-and-death problem (tsumego) 016

16 Black to play Make life for the group (Black’s first move must take the vital point of the eye shape)

(;
GM[1]FF[4]VW[]AP[goproblems.ru]
SZ[19]
AB[ab][cc][dc][db][ec][ea]
AW[eb][fb][gb][fc][fd][de][ce][bd]
C[16
Black to play
Make life for the group (Black’s first move must take the vital point of the eye shape)]
(;B[ba]
TE[1]C[Correct answer]
;W[bc];B[bb]
C[…Black 1 is the vital point. If White plays 2, Black makes eyes with 3.]
LB[ba:1][bc:2][bb:3]
)
(;B[bc]
BM[1]C[Wrong answer]
;W[ba]
C[…With 1 Black misses the chance to make two eyes, and White takes the vital point 2.]
LB[bc:1][ba:2]
))

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