SyncChess
A Revolutionary Chess Variant with Simultaneous Moves
About SyncChess
SyncChess is an innovative chess variant where both players make their moves simultaneously, creating a unique strategic experience that combines prediction, mind games, and classic chess skill.
- Simultaneous Moves: Both players plan and submit their moves at the same time
- No Repeating Pieces: Can't move the same piece twice in a row (with exceptions)
- "Swerving" Rule: Special capture mechanics when pieces try to avoid capture
- Collision Rule: When pieces move to the same square, both are removed
- All Standard Chess Moves: Including castling, en passant, and more
Test your prediction skills and chess knowledge in this exciting variant!
SyncChess Rules
Core Rules
- Simultaneous Moves
- Both players submit their moves at the same time.
- There are no turns; each round consists of one move per player, executed simultaneously.
- No Repeating the Same Piece
- A piece cannot be moved two turns in a row.
- Exception: the king can move multiple times in a row if it is in check or there are no other legal moves.
- "Swerving" Rule (Special Capture Rule)
- If a piece tries to capture an enemy piece, but that piece moves away in the same turn, no capture occurs.
- Both pieces simply move to their new destinations as if nothing happened.
- Collision Rule
- If two pieces move to the same square at the same time, both are removed from the board.
Check & Checkmate
- A king cannot move into a square that is already under threat at the start of the turn (classic illegal move).
- However, if a king ends up in check due to the opponent's simultaneous move, that's allowed.
- If a player is in check, they must get out of it on their next move.
- If both kings are in check at the same time, both players must escape check next turn.
- If a player delivers checkmate, the game ends immediately, even if that player also ends up in check on the same turn.
- If both players deliver checkmate at the same time, the game ends in a draw.
Special Moves
- Castling: Works as in standard chess but with simultaneous moves. The king moves two squares towards the rook, and the rook "jumps" over the king.
- En Passant: If a pawn moves two squares forward from its starting position, an enemy pawn can capture it as if it had moved only one square.
- Pawn Promotion: When a pawn reaches the opposite end of the board, it can be promoted to a queen, rook, bishop, or knight.
- King's Extra Move: In SyncChess, kings get an extra move when in check, allowing them to move twice in a row to escape danger.
Timer System
- Each player starts with their selected time on their clock.
- Both players' timers run while they're deciding their moves.
- When a player submits their move, their timer stops.
- If one player has submitted but the other hasn't, only the second player's timer continues running.
- After both players have submitted moves and the board updates, both timers restart for the next round.
- If a player's time runs out, they lose the game.