Solar Grid

Solar Grid is a binary determination puzzle sharing DNA with Sudoku and Picross. The goal is to fill the grid with Light (Sun) and Dark (Moon) without breaking three fundamental laws of logic.

The Three Directives

No Triples: You can never have three of the same symbol in a row. If you see two Suns, the next tile must be a Moon.
Balance: Every row and column must have an equal number of Suns and Moons.
Uniqueness: No two rows or columns can be identical. This is the "fail-safe" rule for hard puzzles.

The Rules of the Grid

The Three Directives

Cognitive Benefits

The Rules of the Grid

The Three Directives

Cognitive Benefits

DIRECTIVES

BALANCE