Fluxgrid
PlayEvery node holds a charge. Pulse them down to zero — but cross nodes fire on the diagonal, and charge rolls over at the top.
Quick puzzles that load instantly and run entirely in your browser. Play one on a coffee break, or lose an afternoon to the expert grids.
Every node holds a charge. Pulse them down to zero — but cross nodes fire on the diagonal, and charge rolls over at the top.
Picture logic with number clues down the edges. Hand-drawn puzzle packs plus a generator.
Sudoku's skeleton with rotating extra constraints — thermometers one day, killer cages the next.
Letters drop in; build words before the stack reaches the top. Short rounds, high replay.
Sliding-block escape puzzles. Get the marked block out in the fewest moves.
Rotate tiles to connect every source to every sink. One long circuit, no dead ends.
Static files only. Nothing to install, nothing to sign up for.
Follows your preference and remembers it between visits.
Arrow keys, shortcuts, and proper labels for screen readers.
One shared puzzle a day per difficulty, with a streak counter.