Crazy Go Tournament

Torus Go

In this variant, only the board is different: every boundary point of the Go board is considered to be connected to the boundary point on the other side of the board, so that each point has four neighboring points! This leads to some surprisingly tricky gameplay!

In the picture on the left, the two white stones are connected (indicated by the orange arrows). The two black stones are connected as well (red arrows).

Keima Go

Each player plays two stones simultaneously. Both stones must have a keima distance (see picture). It is absolutely not allowed to put single stones on the board. One alwyas must put two stones in keima distance simultaneously! At the end of the game, prisoners are only the stones that have been captured. Everything on the board is assumed to be alive. Territory are only points that are from all sides surrounded by stones of one color (or the boundary of the board). If there is an enemy stone in “your” territory, it isn’t your territory and doesn’t count for your points!

Note: suicide is forbidden! If the first stone cannot be played due to suicide, then the second cannot be played either, even if playing both at the same time would be okay (because they would capture enemy stones).

Explosion Go

The rules are simple: black plays one stone, white two, then black three, white four etc. All stones are played sequentially, so each move has to be legal by itself. Don’t be surprised if your group with two eyes suddenly dies, though…

Magnetic Go (also known as “Electric Go” or “1000V Go”)

The players take turns playing stones as usual. After a stone is placed, the (up to four) closest stones on the same line (horizontally or vertically) move:

• If they have the same color as the placed stone, they move away.
• If they have the opposite color, they move next to the placed stone.

After the movement, stones without liberties are removed from the board.

In the picture, the marked white stone has just been played. Thus, the black stone is attracted (orange arrow), the white stone is repelled (red arrow). The other stone is not moved, since it is not on the same line with the new stone.

This is a rather disturbing variant of Go, since we are so much not used to stones changing their places…