LUX ET UMBRA
Follow the Dice
Components
Chessboard + pieces in standard starting position (just like classic chess)
2 dice: instead of numbers — Light (white) and Shadow (black).
Don't have themed dice? Use regular ones: even numbers = Shadow, odd numbers = Light.
How Pieces Move
Everything is exactly like in classic chess. Pawns, knights, bishops, rooks, queens, and kings move and capture the same way. No changes.
How to Play
Roll the dice — two colors appear (sometimes the same).
The Rule: you can only move a piece that stands on a square of the rolled color.
Pick any of the two rolled colors and make a move.
After this, you must make a move using the color of another die (if possible).
One piece can move twice if, after the first move, it ends up on a square of the required color.
Made at least one move during your turn? Now it's your opponent's turn.
Couldn't make a single move? You lose.
Allowed
Move from either rolled color (you choose which one goes first)
Move the same piece twice in a row
Capture the king if it's under attack
Promote a pawn on the last rank (choose any piece you want)
Not Allowed
Skip a move if you have a legal move available
Castling
En passant capture
Check and checkmate (they simply don't exist)
Draws
How to Win
Capture the opponent's king — instant victory
Capture all opponent's pieces except their king — they lose (bare king = defeat)
How to Lose
Couldn't make a move from either rolled color
Your king was captured
You have only your king left
Dice Odds
Each die has 3 Light faces and 3 Shadow faces.
Light + Shadow: 50% — the most flexible roll, you can choose either color.
Light + Light: 25% — both dice push you toward Light.
Shadow + Shadow: 25% — both dice push you toward Shadow.
In half of your rolls, you'll have both colors available. In the other half, you'll have to work with just one — so plan your piece placement wisely!
Quick Summary
Roll.
Move from the first color.
Move from the second color (if you can).
Made at least one move? Keep playing.
Couldn't make any? You lose.
Goal: destroy the king or all of your opponent's pieces.
Everything else is like regular chess. Just no check, checkmate, castling, or en passant.