Sundown
Every puzzle has one logical solution.
A grid puzzle where every cell holds a sun or a moon, and every board has exactly one solution you can reason your way to. Pick a quick 6×6 or settle into a 12×12 for the evening.
See it in action
A quick look at Sundown.
Features
Hints, grid sizes, and themes.
01
Hints that teach
The three-stage hint system points to the right region, names the technique, then shows the forced cell, so the reasoning sticks with you for next time.
02
Sixteen ways to play
6×6, 8×8, 10×10, and 12×12 grids across Easy, Medium, Hard, and Expert. Every puzzle is generated on your device, so you never run out.
03
Eight board themes
Four free themes plus four premium palettes: Aurora, Solstice, Sakura, and Eclipse.
The rules
The four rules.
- Balance every lineEach row and column must contain an equal number of suns and moons.
- No three in a rowThree identical symbols may never sit together in a row or column.
- Read the edgesMarks between adjacent cells tell you whether those two must match or differ.
- One solutionEvery board has exactly one solution, and logic alone will get you there.
Start with an easy 6×6.
Free to download and play, with no account. It works offline after the first launch.
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