The game is played on a NxN square. The board starts empty
Each player place stone on any unoccupied square.
The goal is to avoid completing any square by marking all 4 corners with stone on the same color.
The square may be any size and tipped at any angle.
On 6x6 board there is 105 such squares.
The n x n board has n * n * (n * n - 1) / 12 squares.
The first player to complete a square is the loser.
Classic Hip is solved game - the second player is winner.
To win 2nd player need play the reflection of the 1st player's moves.
There are different ways io avoid this problem.
This variant was designed by
In Double-Move Hip ach move consists of placing two stones onto the board,
except the first player's first move.
In this way neither player has a clear advantage.
Odd sized boards
Play on odd sized boards, with a center cell where
the 2nd player cannot continue to use the mirror strategy.