Roll the dice. What matters is their sum. Odd is good: you get a piece to set in the grid. Even is bad: you lose blocks from the grid.
If the sum is even, there's a chance of avoiding losing blocks. You can change a dice (just touch one of them to discard it). But beware: if the sum remains even, you'll lose twice as much blocks!
Use the arrows to move the piece. You can also rotate it. When it's in the desired place, touch "Enter".
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