The rules

• Standard 8×8 chess starting position. White moves first.
• Both players draw 7 cards from a shared 104-card deck.
• When the second player joins, the top of the deck is flipped onto the discard pile. White must match its color, value, or symbol.
• You never replenish your hand automatically — it only grows when you draw or are forced to draw.

• Zeros×6
• Ones×30
• Twos×20
• Skip×8
• Reverse×8
• Draw Two×8
• Wild×10
• Wild Draw Four×6

When the deck runs out, the discard pile (minus the top card) is reshuffled back in. The top card stays so the active match-target survives.

On your turn, do exactly one of:

1. Play a number card. Then make up to N legal chess moves (N = the card's value, 0–2). 0 grants no moves. The same piece may be moved multiple times. Tap End turn to stop early.
2. Play a Wild. Pick a new color; you also get exactly 1 chess move.
3. Play a Skip / Reverse / Draw Two / Wild Draw Four. Apply its effect — no chess moves this turn (except Reverse, which lets you immediately play another card).
4. Draw a card. Take one from the deck. Your turn ends immediately.

Skip

Opponent's next turn is skipped.

Reverse

You immediately play another card. Chains stop after at most 3 cards played in a single turn.

Draw Two

Opponent draws 2 cards and is skipped.

Wild

Pick a new active color and make 1 chess move.

Wild Draw Four

Pick a new color; opponent draws 4 cards and is skipped. Only legal when you have no card matching the current active color.

• Standard movement for every piece. Castling and en passant work.
• Pawns reaching the last rank: you pick the promotion piece (queen, rook, bishop, or knight).
• No check or checkmate enforcement. You may move into check, expose your king, anything goes.

1. Capture the opposing king with any move.
2. Empty your hand of cards.

The game ends in a draw if any of these happen:

• Both players agree (either side may offer a draw; the opponent accepts or declines).
• The deck and the discard pile are both exhausted and the player on the move has no playable card.

At any time during an active game you may surrender. Your opponent is credited with the win — this cannot be undone.

When you play a card that leaves you with exactly 1 card, you must tap the pulsing CHUNO! button before your opponent takes their next action. Miss the window and you draw 2 penalty cards.