Parity Palace is a register duel. Each card flips bits in a 2-bit parity register. Declare where the bits will land, then play your cards strategically.
REGISTER BITS
P₁ (sum parity): Odd-value cards (A,3,5,7,9,J,K) flip
it. Even-value cards (2,4,6,8,10,Q) leave it.
P₂ (color parity): Red cards flip it. Black cards leave
it.
Both start EVEN.
FLOW
5 cards each. DECLARE target state. Alternate card plays (you first). After 10 cards, register is checked against declarations.
| Result | Payout |
|---|---|
| Correct declaration | 2:1 |
| Correct + Parity Sweep | 5:1 |
| Both correct (same target) | Push |
| Wrong, dealer correct | -ante |
| Neither correct | -½ ante |
ACTIONS
PLAY: Click a card to play it. PASS: Skip your turn (max 2). LOCK: Pay 1x ante, lock a register bit for 2 turns (once/game). ABSORB: Pay 1x ante, play card face-down with no register effect (once/game).
SIDE BETS
| Bet | Condition | Pay |
|---|---|---|
| INVAR | P₁ never changes (all even cards) | 500:1 |
| CHKSM | Sum of all 10 values div by 6 | 4:1 |
| XOR0 | XOR of all 10 values = 0 | 8:1 |
| MONO | Bits matching target never decrease | 2:1 |
CARD PARITY
Dealer declares secretly (35% bias to EVEN,EVEN). Plays greedily toward its target.
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