KenKen Puzzle Online - Math Logic Game
Play KenKen (MathDoku) puzzle online free. Fill grids with numbers 1-N where each row and column has no repeats, and cages combine to target numbers using math operations.
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Count every foothold — wrong sum, back to base camp.
12 games
Palindrome Sudoku
Play Palindrome Sudoku free online. Standard Sudoku plus grey mirror lines where digits must read the same forwards and backwards. 27 unique-solution puzzles from Beginner to Master.
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Thermo Sudoku
Play Thermo Sudoku free online. Solve 30 hand-crafted thermo puzzles where digits rise along each thermometer. Beginner to Master tiers.
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Threes!
The original number merge puzzle game. Slide tiles and combine 1+2=3, then merge matching numbers to reach the highest tile.
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Kakuro Online - Cross Sums Number Puzzle
A challenging Kakuro puzzle game with multiple difficulty levels
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Nerdle - Math Equation Wordle
Play Nerdle free online! Guess the hidden math equation in 6 tries with color-coded hints. Daily challenge plus 30 progressive levels from simple addition to complex mixed operations.
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Sandwich Sudoku
Play Sandwich Sudoku free online. Standard Sudoku rules plus outside clues: each number gives the sum of the digits strictly between the 1 and the N in that row or column. 27 hand-crafted levels across six tiers.
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Greater-Than Sudoku
Play Greater-Than Sudoku free online. Standard Sudoku plus greater-than and less-than signs between adjacent cells: the open jaw of each sign points toward the larger digit. 27 unique-solution puzzles from Beginner to Ma
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SoliTen
A zen-inspired number puzzle where players tap numbered cards summing to exactly 10 to clear them from the board.
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Anti-Knight Sudoku
Play Anti-Knight Sudoku free online. Standard Sudoku plus the knight-move rule: no two cells a knight's move apart (an L-shape of 2+1 squares, like a chess knight) may share a digit. 27 unique-solution puzzles from Begin
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Classic Sudoku
Classic 9×9 Sudoku! Three difficulty levels, notes mode, timer, undo. The timeless number logic puzzle!
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