Chess : Double your pleasure with four player chess

Who doesn't want to play chess in a group?Now more than 160 square in action.Double the piece and double the pleasure.Lets hangout with four player chess.Checkout the rules:

1.Pieces move and capture like always (though there is no en passant at this time)
2.Points are usually earned by capturing pieces: Pawns are +1 point, Knights are +3, Bishops and Rooks are +5, Queens are +9, Kings are +15
3.Checkmate eliminates a player and earns +15 points
4.Your pawns promote to Queens on your 8th rank
5.Promoted Queens are worth only 1 point
6.Dead (grey) pieces in the armies of eliminated players do not provide points
7.Delivering a double-check is worth +5, and triple-checks are worth +15
8.When a player resigns or times out, leaving two or more active players on the board, their King remains in color and is still worth +15 to whoever can capture it; but if there is only one player remaining, that player gets +15 immediately, and the game is over
9.The player with the most points at the end, wins!