♣️Gameplay

Guess the card value and secure a win!

To start the game, players must create a round. Each round consists of a standard 52-card deck, including 13 values (1 to 10, along with Jack, Queen, and King) across four suits (Spades, Clubs, Hearts, and Diamonds).

Once a round starts, players should guess the face value (not suit) of any card from among the 13 possible values. Users are limited to guessing the value of one card per bet but can make multiple guesses for the same card.

For example, a player predicts that the third card on the table is either a 6 or 8, they win if the flipped card shows any one of these:

• 6 of Hearts, Spades, Clubs, or Diamonds,

• 8 of Hearts, Spades, Clubs, or Diamonds.

If the card flipped over is none of those, the player loses.

When a card is turned face-up, it is removed from play. The player can then make guesses among the remaining face-down cards. This process continues until no face-down cards are left in the deck.

Payout odds

The odds for each value are calculated by dividing the remaining possibilities (chances of losing plus chances of winning) by the chances of winning.

$$Odds =\frac {N_{rem}} {N_i}$$

$N_{rem}$ = Number of remaining face-down cards $N_i$ = Number of remaining face-down cards with the value i

For instance, imagine you guess the value of a card is 4. Assume 32 cards are remaining and only 2 cards with a value of 4. In this case, the odds are:

$$Odds = \frac {32} {2} = 16×$$

Now, in case of choosing multiple candidate values, by following the same logic, we'll arrive at the general odd formula:

$$Odds =\frac {N_{rem}} {\sum N_{i}}$$

where $\sum N_{i}$ is the sum of the number of all remaining face-down cards corresponding to each of the values chosen by the player for the bet.

Suppose the player chooses King along with 4, where two cards of 4 and three cards of King are among the remaining 32 cards. In this case, the odds are calculated as:

$$Odds = \frac {32} {2+3} = 6.4×$$

As you can see, choosing multiple values increases your chance of winning, but it also lowers your payout odds.

Other considerations

• All game logic and transactions are coded and occur on the Base L2 network, incurring fees in Ether, each approximately $0.05.

• All bets are set and settled with USDC. Players can bridge USDC from other networks or buy it directly with fiat via MoonPay.

• To initiate a round, the player should pay a fee of 0.5 USDC. This fee covers the cost of the operator's proofs to the blockchain.

• When a player places a bet, the system deducts 10% of their win or loss amount as the house edge, part of which supports the burning program.

• The result of each game is determined offchain immediately, but verifying its integrity and payout can take 4 to 20 seconds.

• After each card guess, you will receive $MONT as a reward, which you can claim. The more you play, the greater the reward.

• A round concludes either when only one card remains on the table or after 12 hours (for security reasons) from its start.

• To manage system liquidity, our system sets a maximum win per card, equivalent to 2% of the total liquidity available in the treasury.