Go (Baduk, Weiqi) problems with solutions

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Life-and-death problem (tsumego) 014

14 Black to play Kill the white group; the first move matters most

(;
GM[1]FF[4]VW[]AP[goproblems.ru]
SZ[19]
AB[cc][cd][ce][ee][fd][fc][fb][hb]
AW[bc][cb][eb][ec][dc]
C[14
Black to play
Kill the white group; the first move matters most]
;B[ba]
TE[1]C[Correct answer]
;W[bb];B[ea];W[da];B[fa];W[bd];B[be];W[ad]
;B[ab]
C[…Black 1 is the vital point of White’s eye shape. The continuation up to 9 produces the dead shape "magari shimoku" ("bent four in the corner"). The white group dies.]
LB[ab:9][ad:8][be:7][bd:6][fa:5][da:4][ea:3][bb:2][ba:1]
)

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