Goal

Reveal all 71 safe tiles on the 9×9 board without revealing any of the 10 buried coins. Reveal everything and you win the block.

Controls

• Left click — sweep (reveal) a tile.
• Right click (or long-press on a touchscreen) — lock / unlock a coin you suspect.
• ₿ face (center of the panel) — start a new game at any time.

Reading the numbers

A revealed number tells you how many coins are hiding in the 8 tiles directly around it (horizontally, vertically, diagonally). Use the numbers to deduce where the coins are, then lock them before you sweep.

• A 1 with only one covered neighbor left → that neighbor is a coin.
• A revealed tile with 0 neighbors → the board auto-sweeps the surrounding area for you.
• A coin next to a revealed tile is safe from that tile's count — but one wrong click still ends the run.

HUD

• Left counter — coins left to lock (total 10). It can go negative if you lock extras.
• Right counter — your time in seconds (max 999).

Rules of the chain

• The first sweep is always safe — it never lands on a coin.
• Clicking a coin ends the game: all coins are revealed and the killer coin turns red.
• Coins you locked correctly are confirmed when the board is won.