Help For Avalanche Chess
Welcome to the network Avalanche Chess server. The rules of Avalanche Chess are below. The move notation is a
comma-separated list of chess moves. The avalanchechess
"challenge" command is described here. Other commands are the same for all pbmserv games.
- avalanchechess challenge userid1 userid2
[ -reversed | -balanced | -standard ]
- Start a new game of Avalanche Chess between userid1 and
The standard rules for Avalanche Chess have
a large first-move advantage. (because of the opening move 1. e4,c6) Two methods have been
proposed to fix the problem, called "Reversed King/Queen Avalanche Chess" and
"Balanced Avalanche Chess". -reversed is the default mode for Avalanche
The "-reversed" option reverses the position of
Black's King and Queen.
With the "-balanced" option, white does not push
a pawn on his first move only.
The "-balanced" and "-reversed" options
may be used together.
The "-standard" option negates the effect of the
default -reversed mode, so that neither -reversed or -balanced is in effect.
Rules of Avalanche Chess
All rules from normal chess apply, except that every turn
has two parts. First a normal legal chess move, then one of the opponent's pawn is pushed
one space forward (towards yourself).
A few extra rules are needed to clarify how certain
situations are handled:
- The first part of the move must be a legal move. You may not
place your king in check and then use the pawn push to get out of check.
- The second part of the move (the pawn push) is omitted if
there are no pawns which can be pushed.
- If a pawn is pushed such that it places the player's own
king in check, he loses the game immediately, since his king would be captured on the next
turn. This applies even if he mates his opponent on the same turn, since his king would be
- If a pawn is pushed onto the last rank, the owner of the
pawn decides what piece to promote it to. If the promotion results in check, the game is
over according to the previous rule, since the king would be captured.
- There is no en-passant capture.
Additional Information on Avalanche Chess can be found at:
Chess on Hans Bodlaender's Chess Variant Pages.