Chaturaji

 Let me explain Chaturaji, which is a historical four-player chess variant from ancient India.

Chaturaji (meaning "four kings" in Sanskrit) is played on an 8×8 board with four different colored sets of pieces, typically:

- Green (West)

- Red (South) 

- Yellow (East)

- Black (North)

Each player starts with 8 pieces:

1. Raja (King) - Moves one square in any direction

2. Elephant - Moves two squares diagonally (can jump)

3. Horse - Moves like a chess knight (L-shape)

4. Ship/Boat - Moves two squares orthogonally (can jump)

5. Four Pawns - Move one square forward or sideways (no diagonal moves), promote on opposite row

Key rules:

- Players move clockwise

- Dice (traditional four-sided) determine which pieces can move:

  * 4: Raja or Ship

  * 3: Horse

  * 2: Elephant

  * 1: Pawn

Scoring:

- Capturing Raja: 5 points

- Capturing other pieces: 1 point

- Game ends when three Rajas are captured

- Winner is the player with most points, not necessarily who captured most Rajas

Special rules:

- Alliances between players are not allowed

- A captured Raja's remaining pieces become inactive

- Pawns promote to ships when reaching the opponent side