← Triangle Fit
How Triangle Fit works

Triangle Fit

Fit every piece into the outline — pieces turn and flip.

Interactive lesson1 / 4
Rule 01

Fit every piece into the outline.

No gaps, no overlaps: once every triangle of the outline is covered exactly once, the puzzle is solved.

All rules
Rule 01Fit every piece into the outline.

No gaps, no overlaps: once every triangle of the outline is covered exactly once, the puzzle is solved.

Rule 02Pieces turn and flip.

Tap ⟳ to turn the picked-up piece 60°, or ⇋ to flip it — or tap the piece again to turn it. A piece on the board turns where it lies when it still fits.

Rule 03Green fits, red doesn't.

While you move a piece, its preview is green where it fits and red where it doesn't. Let go on green to place it; drag it off the board to return it to the tray.

Rule 04Every day has exactly one solution.

Every player gets the same outline and pieces, so times are directly comparable. Stuck? A hint places one piece for you — or, if another piece is in its way, lifts that one first.

Drag a piece onto the outline, or tap it and then tap where it goes · ⟳ turns, ⇋ flips · keyboard: 1–7 pick a piece, arrows move it, R turns, F flips, Enter places, Delete returns it

Got it — play