Go (Baduk, Weiqi) problems with solutions

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Life-and-death problem (tsumego) 017

17 Black to play Live in the corner by capturing three white stones (Black’s first move is a tesuji that exploits the shortage of liberties of the white stones)

(;
GM[1]FF[4]VW[]AP[goproblems.ru]
SZ[19]
AB[bc][cc][dc][dd][ed][fe][ge][hd][gc][ic]
AW[bd][ce][cf][ee][ef][ec][fc][fd][hb][hc][id][jd][jc][if][gg]
C[17
Black to play
Live in the corner by capturing three white stones (Black’s first move is a tesuji that exploits the shortage of liberties of the white stones)]
(;B[eb]
TE[1]C[Correct answer]
;W[fb];B[gb];W[ga];B[gd]
C[…Black takes the vital point 1. If White plays 2, Black plays 3. The white stones cannot escape because of a shortage of liberties.]
LB[eb:1][fb:2][gb:3][ga:4][gd:5]
)
(;B[fb]
BM[1]C[Wrong answer]
;W[eb];B[gb];W[gd];B[he];W[ga]
C[…Black 1 is bad. White takes the vital point 2 and Black loses.]
LB[fb:1][eb:2][gb:3][gd:4][he:5][ga:6]
))

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