Scratch Card
About Scratch Card
Scratch Card is a quick game of nerve modelled on the paper lottery card. A small grid of cells sits under foil; a target prize symbol is shown up front. Tap a cell to scratch off the foil and see what's underneath · uncover enough prize-symbol cells and the round is won. Reveal too many blanks first and the round is over.
Pure information-theory tension. You can't see through the foil, so every scratch is a small wager: the more cells you reveal, the more you know about where the prize cells are not · but every wrong scratch counts against your blank budget. The optimal strategy is to commit early when the odds favour you and stop scratching the moment the budget gets thin.
Difficulty tunes the odds. Easier rounds use a small grid (2×3 to 3×4), a short symbol alphabet, and a few extra prize cells beyond the minimum you need. Harder rounds grow the grid (up to 6×3), add more lookalike non-prize symbols to dilute the field, and at higher labyrinth levels raise the prize-cell target while shrinking how many blanks you can afford.
Deterministic and shareable. The grid contents, the prize symbol, how many you need, and how many blanks you may reveal are all derived from the round seed. The same save code always reproduces the exact card · which makes "beat my round" challenges possible, and means a labyrinth resume always returns the same puzzle.
Part of the PlayMemorize family of brain-training games. Runs entirely in your browser, works offline as a Progressive Web App.
FAQ
Q: How do I win a round?
A prize symbol is shown at the top. Tap cells to scratch off the foil; once you have uncovered the required number of prize-symbol cells, you win. If you reveal too many non-prize cells first, the round is lost.
Q: Is there any skill, or is it pure luck?
It is mostly luck · you cannot see through the foil before you scratch. The skill is in nerve: knowing how many gambles to take and when to stop. Over many rounds the difficulty setting tunes the odds in your favour or against you, but a single round is always partly chance.
Q: Is the card the same for everyone?
Yes when handed the same seed. The grid contents, the prize symbol, how many you need, and how many misses you can afford are all derived from the round seed, so the same save code reproduces the exact card. Useful for "beat my round" challenges.
Q: How does difficulty change it?
Higher difficulty grows the grid (from 2×3 up to 6×3), adds more lookalike symbols, and trims the spare prize cells. Higher labyrinth levels raise the number of prize cells you must uncover and lower how many blanks you may reveal · so the same difficulty gets steadily harder as you climb.
Q: Does it work offline?
Yes. PlayMemorize is a Progressive Web App. Install once and Scratch Card works without an internet connection.
