Star Chart Match

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Star Chart Match

Pair each sum with its answer on a chart of stars. Help pixel Galileo sort his star charts by pairing each sum card, like 3×4, with its answer card, 12, instead of matching identical pictures, in this free memory game.

Twist: Cards show sums and answers: pair each sum, like 3×4, with its answer, 12.

Parody. Galileo Galilei has no involvement in making these games and does not endorse them. The character is an original pixel-art caricature.

How to play

Tap or click a card to turn it over, then pick a second card.
Cards show sums and answers instead of pictures: a sum card like 3×4 pairs with its answer card, 12.
Each level has 12 different answers to find. A right pair stays face up; a wrong one turns back.
Clear the board to move to the next level. If the clock runs out, the round ends.
On a keyboard, move with the arrow keys and turn cards with Space or Enter. Press M for sound and P or Esc to pause.

Top 10 high scores

No scores yet: play a round and be the first on the board!

All-time top 10 scores in Star Chart Match
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The story

A gust of wind has blown through pixel Galileo Galilei's rooftop observatory and scattered his star charts all over the floor. Every chart was numbered with a little sum, and its partner with the answer. Putting them back in order is a puzzle he calls Star Chart Match.

Turn the cards over and the night sky starts to come together again: the Moon's craters, the rings of a comet, the four bright moons of Jupiter. Pair each sum with its answer, clear the floor and he can get back to the eyepiece before the stars set.