Logic games

Grids, deductions and chains of reasoning. No luck required, just careful thinking.

241 results

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Sixes (opens the game in a new tab)

Not Words

A daily 6x6 mini sudoku: every row, column and 2x3 box holds 1 to 6. One logical solution, notes and a free hint, harder on Sundays. Free daily, no signup.

Sixes: details and ratings

Slide Master (opens the game in a new tab)

Slide a numbered tile into the adjacent empty space. Put the numbers in order with the empty space at the bottom right. Hosted by Guessr Games. Guest play is available; official rankings may require signing in on the original site.

Slide Master: details and ratings

SLYDE (opens the game in a new tab)

3x3 sliding puzzle built from a new photo each day. Solve it in as few moves as possible and see how you stack up against the optimal solution (and your friends).

SLYDE: details and ratings

Snug (opens the game in a new tab)

Not Words

A free daily shape-fitting puzzle. Fit every piece into the board, turning and flipping as you need, so it is covered with nothing left over. The pieces only fit one way. A new board every day and a bigger Edition on Sundays. Free daily, no signup.

Snug: details and ratings

Sonar Puzzle (opens the game in a new tab)

Medium

Free daily puzzle: ping the grid with sonar to find a hidden submarine in as few moves as possible, then share an emoji result grid. New puzzle every day, no sign-up.

Sonar Puzzle: details and ratings

Sorted (opens the game in a new tab)

Number Games

Sorted is a free daily number puzzle. Ten numbers get drawn one at a time and you place each into one of ten slots, keeping the column ordered low to high.

Sorted: details and ratings

Sortl (opens the game in a new tab)

A daily liquid sort puzzle. Test tubes filled with colored layers — pour them between tubes until each one holds a single color.

Sortl: details and ratings

Spelt (opens the game in a new tab)

Daily

A word puzzle that plays like a logic puzzle. Five words with letters missing, and exactly enough tiles to fill them. Most rows can be finished several ways. Only one set uses every tile.

Spelt: details and ratings

Squishy Billiards (opens the game in a new tab)

Daily pool puzzle with special balls: sink the rest and avoid the marked ones.

Squishy Billiards: details and ratings

Stands (opens the game in a new tab)

Not Words

A free daily logic puzzle. A small league played a full round robin, the results sheet was lost, and a handful of facts survive. Exactly one set of results fits them. New season every day. Free daily, no signup.

Stands: details and ratings

Star Battle (opens the game in a new tab)

Daily

Place two stars in every row, column and colour region so that no two stars touch. Daily board plus unlimited and archive modes.

Star Battle: details and ratings

Starstruck (opens the game in a new tab)

Puzzle

Netflix's daily star puzzle: one star per row, column and colour region. No account needed.

Starstruck: details and ratings

Sudoku (opens the game in a new tab)

Not Daily
Medium

Free online Sudoku with multiple difficulty levels. Fill a 9×9 grid with digits 1–9 so that each row, column, and 3×3 box contains every number exactly once. Train your logical thinking, suitable for all ages.

Sudoku: details and ratings

Sudoku (opens the game in a new tab)

Number Games

Classic daily 9x9 Sudoku with four fresh difficulties every day, a notes mode, instant conflict highlighting, and per-difficulty timing.

Sudoku: details and ratings

Sudorkle (opens the game in a new tab)

Logic

A cross between Wordle and classic Sudoku, where you guess each row of the puzzle before using Wordle-style clues to solve the rest.

Sudorkle: details and ratings

Suds (opens the game in a new tab)

Not Words

A daily classic 9x9 sudoku with one logical solution, notes and a free hint, and a harder Sunday Edition. Free daily, no signup.

Suds: details and ratings

Suffice (opens the game in a new tab)

Not Words

A free daily logic game built on the data-sufficiency format: a question you never answer, and two statements. Three yes-or-no questions decide what is enough to settle it. Eight items a day, twelve on Sundays, every answer machine-proved. Free daily, no signu...

Suffice: details and ratings

Sufuku (opens the game in a new tab)

Daily
Medium

Sudoku, but numbers repeat.

Sufuku: details and ratings

Sumo (opens the game in a new tab)

Not Words
Medium

A daily greater-than (inequality) sudoku: a 9x9 with signs showing which square is bigger. One logical solution. Free daily, no signup.

Sumo: details and ratings

Suspectle (opens the game in a new tab)

Place every suspect on a floor plan, one per row and one per column. Whoever is left alone with the victim did it. No guessing necessary — every case has exactly one solution reachable by pure deduction.

Suspectle: details and ratings

Swindle (opens the game in a new tab)

Not Words
Tricky

A daily chess puzzle: White is lost and exactly one move saves a draw by stalemate, perpetual check or repetition. Find it, then hold on. Free daily, no signup.

Swindle: details and ratings

Sworn (opens the game in a new tab)

Not Words

A free daily Knights-and-Knaves logic puzzle: a handful of locals under oath, exactly so many of them lying, one of them a thief. Work the contradictions and name the culprit. A new inquest every day, six sworn on Sundays. Free daily, no signup.

Sworn: details and ratings

Swudoku (opens the game in a new tab)

Number Games

A daily sudoku with a twist: the board starts complete but jumbled, and you swap tiles until every row, column and box holds 1 to 9.

Swudoku: details and ratings

The Magical Ferry (opens the game in a new tab)

River-crossing logic puzzle: ferry every passenger and item across without conflicts.

The Magical Ferry: details and ratings