Connect
253 problems

Try to connect stones.

Irregular board
153 problems

Problems on an unusually shaped board.

Cutting
134 problems

Cut your opponent's stones.

Symmetrical
88 problems

At least one axis of symmetry.

Handicap Game
70 problems

5x5 Endgames
35 problems

Endgame problems from 5x5 boards.

13*13 Games
27 problems

6x6 Endgames
20 problems

Endgames problems on 6x6 boards.

Notch Group
11 problems

2nd line groups with a "notch".

Irregular rules
11 problems

Used useless rules but it's a joke:)

Spiral Ladder
10 problems

Concentric groups
6 problems

Groups inside other groups

yosihiro
5 problems

Problem of yosihiro

jingdiansihuo
4 problems

Good and bad style
2 problems

Avoid vulgar style.

Nadare Joseki
2 problems

Avalanche Patterns

Hiraki (Extension)
2 problems

What is the correct extension?

Problems in collection Choose your Difficulty
ID Genre Author Difficulty Stars Flagged Created