Play Soluna
Soluna fills a grid with suns and moons. Each row and column must contain equally many of each symbol, three identical symbols cannot sit in a line, and the = and × badges on the edges force a pair to match or to differ. It is binary parity logic wearing a friendlier costume.
How to play
Fill with equal suns and moons. You may place ☀️ and 🌙 so every row and column has the same count of each. On 6×6 that is three suns and three moons per line.
No three identical symbols in a row. You cannot put three suns or three moons consecutively horizontally or vertically. Two suns force moons on both open ends.
Honor = and × badges. Squares joined by = must match. Squares joined by × must be opposites. Tap cycles Empty → Sun → Moon.
Do not break a finished count. Once a line already has its half of suns, you cannot add another sun there. The rest of that line must be moons.
Today's puzzle and ordinary practice are free. Arcade Pass adds hints, the 60-day archive and expert practice.