Go (Baduk, Weiqi) problems with solutions

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Direction of play problem 001

1 White to play Choose from options A–E * Outside development matters more than corner territory

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[0]
AB[pd][pj][pp][do]
AW[dc][dq][ce]
;W[tt]C[1
White to play
Choose from options A–E
* Outside development matters more than corner territory]
PL[W]LB[fp:A][co:B][eo:C][cm:D][dl:E]
(;W[fp]
TE[1]C[Correct answer
The keima limits the opponent’s chances of developing a moyo.
See the continuation]
;B[cq];W[cr];B[cp];W[er];B[ck]
C[…White forms a powerful, solid shape that limits Black’s possibilities on the lower side and in the centre. What is more, White gets sente and is first to play on the upper side.]
LB[fp:1][cq:2][cr:3][cp:4][er:5][ck:6]
)
(;W[co]
BM[1]C[Wrong answer
The attachment from below can harm development on the lower side.
White 1 is the standard move. Black then continues at A or B. If Black knows the variations from problems 5 and 6, White will be in serious trouble on the lower side.]
LB[cn:A][dp:B]
)
(;W[eo]
TE[1]C[Correct answer
A tsuke on the 5 line helps to gain outside influence.
In this situation the move 1 is good enough for White. In any case White gets a high position, which will be a good base for fighting against Black’s sanrensei. After White 1, Black chooses between A and B (see problems 28-29).]
LB[en:A][cq:B]
)
(;W[cm]
BM[1]C[Wrong answer
A low hasami leads to a low position.
When White already has the /\\ stone on the third line, White 1 is bad. Black presses White down into a low, flat position on the left side. After White 1, Black chooses between A, B, C and D (see problems 42-43).]
TR[ce]
)
(;W[dl]
TE[1]C[Correct answer
The two-space high pincer (niken takabasami) starts a strong attack.
White 1 is the standard hasami, and it is also well balanced with the two /\\ stones. Black chooses between A, B, C and D (see problems 62-63).]
LB[fo:A][gp:B][eq:C][go:D]
TR[ce][dc]
))

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Direction of play problem 002 |>

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