Sun or Moon
Place a sun or a moon in each cell so that no 3 line up — in a row, column, or diagonal.
About the Puzzle
Place a sun or a moon in each cell so that no 3 line up — in a row, column, or diagonal.
26 Puzzles
Sun or Moon #01
Sun or Moon #02
Sun or Moon #03
Sun or Moon #04
Sun or Moon #05
Sun or Moon #06
Sun or Moon #07
Sun or Moon #08
Sun or Moon #09
Sun or Moon #10
Sun or Moon #11
Sun or Moon #12
Sun or Moon #13
Sun or Moon #14
Sun or Moon #15
Sun or Moon #16
Sun or Moon #17
Sun or Moon #18
Sun or Moon #19
Sun or Moon #20
Sun or Moon #21
Sun or Moon #22
Sun or Moon #23
Sun or Moon #24
Sun or Moon #25
Sun or Moon #26
Frequently asked questions
Sun or Moon is tagged for Grades K-12 — puzzles within it get harder as your child improves.
26 Sun or Moon puzzles, each a fresh layout of the same rules.
No — Sun or Moon plays directly in the browser, right on this page. No login, no download.
Sun or Moon trains binary constraint satisfaction — deciding between exactly two options under a strict rule.
No — every Sun or Moon puzzle is free to play, no sign-up needed.