LOCATION MEMORY
A complete board preview
Unlike blind trial-and-error matching, the board begins fully visible so the main challenge is retaining symbol locations.
The symbols are shuffled for every board, and each symbol appears exactly twice.
PAIR MEMORY · 4 × 4
Preview the symbols, then uncover all eight matching pairs.
Clear one 4 × 4 board. Mismatches count, then the cards turn back over.
READY?
The cards reveal briefly before the race begins.
Mouse or touch: flip cards · Keyboard: Tab to a card and press Enter or Space.
HOW TO PLAY
Study the full board while every paired symbol is visible.
After the cards hide, select one card and then its matching partner.
Matched cards stay open. A mismatch turns back over after a brief reveal.
LOCATION MEMORY
Unlike blind trial-and-error matching, the board begins fully visible so the main challenge is retaining symbol locations.
The symbols are shuffled for every board, and each symbol appears exactly twice.
READ YOUR RESULT
Standard results include total time, card flips, and mismatches across one fixed 4 × 4 board.
Endless boards grow from three pairs. The first mismatch, second-card timeout, or board timeout ends the run.
QUESTIONS
The full board remains visible briefly before all unmatched cards turn face down.
Every newly selected hidden card adds one flip. Selecting the already-open card does nothing.
Yes. Tab to any card and press Enter or Space to flip it.
Each cleared board introduces more pairs, up to a 24-card grid, while mistakes immediately end the run.