Copyright (c) 1998 Pierre Baudy
Squaryd is played on the following 7x7 square board:
Each player also starts with a number of simple and double pieces offboard.
Squares are not just formed by orthogonal lines, they can make any slope with the board edge.
Black's turn. If he drops a single piece at cell  he threatens to make a square in the next move (d1d3f1f3). So, after that Green must reply by dropping a double piece at . The problem is that doing that Green makes a double square (d1c3e4f2) and loses the game.
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