Go (Baduk, Weiqi) problems with solutions

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Direction of play problem 004

4 White to play Choose from options A–E * White has low stones in the two neighbouring corners

If the variation letters A, B and C are not shown on the board, reload the page or press "next move".

(;
GM[1]FF[4]VW[]AP[goproblems.ru]
SZ[19]
ST[2]
AB[dc][pd][qp][do]
AW[ce][oq][dq]
;W[tt]C[4
White to play
Choose from options A–E
* White has low stones in the two neighbouring corners]
PL[W]LB[dl:E][cm:D][eo:C][co:B][fp:A]
(;W[fp]
BM[1]C[Wrong answer
The keima gives away territory
See the continuation]
;B[cq];W[cr];B[cp];W[er];B[ck]
C[…After White 1 Black gets more local territory. White played in the corner first, but ends up behind.]
LB[ck:6][er:5][cp:4][cr:3][cq:2][fp:1]
)
(;W[co]
BM[1]C[Wrong answer
The tsuke underneath hurts the left side
White 1 lets Black take the advantage on the left side. With the right choice between A and B (see problems 5-6), Black takes control of the left side while attacking the /\\ stone.]
LB[dp:B][cn:A]
TR[ce]
)
(;W[eo]
TE[1]C[Correct answer
The outside tsuke works well with both sides
White 1 is a good move. Black answers at A or B (see problems 28-29). Either way White’s /\\ stones are put to work efficiently.]
LB[cq:B][en:A]
TR[oq][ce]
)
(;W[cm]
TE[1]C[Correct answer
The one-space pincer (ikken basami) is good for attacking
White 1 is a severe attack on the black stone and helps the /\\ stone. Black then chooses between A, B, C and D (see problems 42-43).
Note: this answer differs fundamentally from the similar answer in problem 1. Here the /\\ stone is weak, while in problem 1 White is strong in the upper left.]
LB[bo:D][dm:C][en:B][cq:A]
TR[ce]
)
(;W[dl]
TE[1]C[Correct answer
The two-space high pincer (niken takabasami) starts a strong attack
White 1 is a strong hasami that also works well with the /\\ stone. Black answers at A, B, C or D (see problems 62-63).]
LB[go:D][eq:C][gp:B][fo:A]
TR[ce]
))

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Direction of play problem 005 |>
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