xquarto 2.5

xquarto project is a two-player board game based on logic.

Xquarto is a board game designed for the X windows environment. The game is a two-player game, although for the moment,it is only possible to play against the computer. The board is composed of 4x4 squares and 16 pieces. Each piece has four
properties: black or brown, horizontal or vertical, solid or hollow, round or square. This makes up 16 possible combinations and there is exactly one piece for each possibility.

Initially, the board is empty and it is successively filled with pieces. The game is over when a row, a column or a diagonal has four pieces carrying a common property in it, e.g. four black (brown) pieces, four square (round) pieces, four filled
(hollow) pieces, four horizontal (vertical) pieces. In the original quarto rules, the player who is the first to complete a row, column or diagonal as described above wins. This is the implicit mode under which xquarto runs. A variant of the game (tic rules) consists rather of avoiding alignments, i.e. the player who is forced to complete
an alignment loses.

The game is a two-player game. Player 1 chooses one of the 16 pieces. Player 2 then places this piece on one of the 16 squares of the board and chooses a piece out of the remaining 15 pieces which he gives to player 1, who places this piece on one of the remaining 15 squares on the board, etc...

Xquarto supports three different player combinations: human vs computer, computer vs human and human vs human (possibly through the local network in the latter case). The default combination is human vs computer, i.e. the human player starts the game against the computer. This can be changed by clicking on the "Actions" menu (see below for more details).

The rules are really very simple - believe me!