How Anti Diagonal One Equality Works

The game uses a 4x4 board. The selection of mines is not random across all possible combinations. Instead, it is drawn uniformly from the legal board support for the chosen mine count.

The defining rule for this support is the Anti Diagonal One Equality constraint. In a 4x4 grid, the anti-diagonal consists of four cells. There are three adjacent pairs along this diagonal. The rule requires that exactly one of these three pairs has equal occupancy bits (both safe or both mines). This creates a finite, exact set of possible boards for any given mine count.

When you start a round, the board is selected uniformly from this filtered support. This differs from games where probabilities shift based on previous draws; here, the initial probability distribution is fixed by the support size.

Since this is an independent demo site and not the official operator's platform, you must verify key details before engaging further with the in22 brand. While this demo uses virtual coins, real-money versions often involve Malaysian Ringgit (MYR). You should check whether the operator accepts local payment methods such as Touch 'n Go eWallet or DuitNow, as these are the most convenient options for users in Malaysia.

Additionally, remember that gambling is tightly restricted by national law in Malaysia, with exceptions for certain licensed entities. Always confirm the current regulatory status of in22 directly with the operator. For practical safety, ensure you are reading the correct terms and conditions on their verified channel, as this site is unaffiliated. Do not assume this demo reflects the exact payout rates or licensing status of the real-money game.

• Check if the operator supports MYR accounts.
• Verify acceptance of Touch 'n Go eWallet or DuitNow.
• Confirm the current legal status under Malaysian law.

The game operates with specific controls that remain locked during an active round to preserve the mathematical integrity of the support filtering.

• Mine Count Selection: You choose a mine count before the round begins. This choice defines the initial support size. The available mine counts are 3, 4 and 5.
• Revealing Cells: Click a cell to reveal it. If it is safe, you continue. If it is a mine, the round ends with a gross return of zero.
• Manual Bank: After at least one safe reveal, a manual bank button becomes available. You can click this to cash out your current quote at any time.
• Refill: If the wallet balance is below 10 and you are idle, you can manually refill. This action sets the integer balance to exactly 1000. It does not add to the existing balance. Fractional carry persists across this refill and settlement.

The payout is determined by the reduction of the board support as you reveal safe cells. Each safe reveal filters the support, removing boards that do not match the revealed pattern.

The gross quote is calculated as:

Gross Quote = 0.96 × Captured Stake × (Initial Support / Current Compatible Support)

• 0.96 is the fixed factor applied to the stake.
• Captured Stake is the amount you wagered.
• Initial Support is the total number of legal boards for your chosen mine count at the start.
• Current Compatible Support is the number of legal boards remaining that are consistent with all revealed safe cells.

Cap Guard: If a safe reveal would result in a gross quote exceeding 1000 times the stake, that cell is disabled. While eligible cells remain, you can choose another eligible cell or manually bank after a safe reveal.

Auto-Bank: If no eligible reveals remain (because all safe cells are found or every remaining cell is a certain mine or would exceed the cap), the current quote is automatically banked.

The exact expected return (RTP) for this game is 96% gross. This is a mathematical constant derived from the contract, not a measured estimate.

Note: Measured RTP values are sample observations and may vary slightly from the exact 0.96 due to statistical variance.

The demo uses a local wallet system. Your balance and fractional carry are stored in the browser's localStorage.

• Refill: Only available when idle with a balance below 10. Sets balance to exactly 1000. Does not add to existing funds.
• Settlement: Settled balance persists locally. If you reload during an unfinished round, the round ends without refund or resume.
• Fractional Carry: Persists across settlement, refill, and reload.

This demo has no account login flow, no payment processing, and no connection to an external cashier. The virtual coins have no cash value.

This guide is intended for users 18 and older. This is an audience policy, not a legal age gate or statement of local legality.

Privacy: The demo uses localStorage for balance. A Google Fonts stylesheet is declared, but no specific third-party data processing is confirmed. Clearing cached files may leave local storage data.

Responsible Use: You can set a personal time or virtual-coin limit. The demo does not clinically train behaviour or make losses safe. There are no self-exclusion tools or account-level blocking in this demo.