How to play
Study the initial preview, then reveal two matching letters. Larger boards use cabinets of at most twelve letters; the first selection stays selected when switching cabinets. Exceeding the mismatch allowance or timer ends the attempt.
Controls
Click or tap letters or their numbered buttons. Left/right switches cabinets, 1–0 flips the first ten letters, and Space previews the current cabinet.
Playing tips
- Remember both stamp and cabinet location. If one revealed letter has a known partner elsewhere, switch cabinets before choosing the second. Extra previews reduce stars.