Duck Chess
Duck Chess uses all the normal chess rules with one playful twist: a rubber duck on the board!
What are the rules of Duck Chess?
Each turn has two steps: First, make a normal chess move, then move the duck to any empty square. The duck can go anywhere there’s room.
The duck is like a brick: No piece can land on or pass through the duck’s square.
Knights can jump over the duck.
No check or checkmate: Kings may move into or through attacked squares. Players capture the enemy king to win.
Players can also win by getting stalemated: A stalemate occurs only when a player has no legal move anywhere on the board. Because moving into check is legal in Duck Chess, the only way to run out of moves is to trap every one of your own pieces (including your king) behind your pieces and the duck. When this defensive tactic succeeds, the stalemated player wins.
Example
In the pictured position, White’s dark-squared bishop on f3 can’t capture the black queen on c6; the Duck on e5 blocks the diagonal. If it were Black’s move, the queen would face the same obstacle. The knight on f6, however, could still capture the pawn on e4.
Check out this article to learn more about Duck Chess: Duck Chess
How do I play Duck Chess on Chess.com?
To start a game of Duck Chess, hover over 'Play' in the left-hand menu and choose '4 Player & Variants.'
In the right-hand sidebar, scroll down until you see Duck Chess.
Customize your settings, and click 'Play' to begin!