SyncChess: A Chess Variant With Simultaneous Move Submission

Hi everyone,

I'd like to share a chess variant I've developed called SyncChess that introduces a fundamental change to how chess is played. I'm a first-year college student, and this has been my passion project for the past few months.

What makes SyncChess different?

In SyncChess, both players submit their moves simultaneously instead of taking turns. This creates an entirely new strategic dimension where predicting your opponent's move becomes just as important as calculating your own. Think of it as combining chess with rock-paper-scissors elements!

Core Rules:

1. Simultaneous Moves: Both players choose and submit their moves at the same time. The board only updates after both players have submitted.
2. No Consecutive Moves With Same Piece: You cannot move the same piece in consecutive rounds (with an exception for kings in check or when no other legal moves are available).
3. "Swerving" Rule: If you attempt to capture an enemy piece, but that piece moves away in the same round, no capture occurs.
4. Collision Rule: If two pieces try to move to the same square simultaneously, both are removed from the board.
5. Check & Checkmate: Kings can end up in check due to simultaneous moves. A checkmate ends the game immediately, even if the delivering player's king is also in check. If both players deliver checkmate simultaneously, the game is drawn.

New Feature: Online Matchmaking

I've just implemented online matchmaking at syncchess.com, so you can now play against random opponents without having to invite a friend. The site also supports friend invites if you prefer.

Tutorial Video

For those who want to see the rules in action, I've created a short tutorial: https://youtu.be/-Gs7gEG61fk?si=fdhY3MSzlgUS4c5n

Why I Think It's Interesting

SyncChess creates fascinating tactical situations that don't exist in regular chess. For example:

• Sacrifices become more unpredictable when your opponent can move the piece you're targeting
• Setting up multiple threats is more powerful since your opponent can only respond to one
• The inability to move the same piece twice creates interesting mobility constraints
• Mind games and player psychology play a much bigger role

I'd love to hear your thoughts if you give it a try! I'm especially interested in feedback from experienced chess players about the strategic depth and balance.

Thanks for your time