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Logic puzzles

• ABC End View ABC End View (also known as Easy as ABC, Buchstaben, or Skyscraper Letters) is a logic puzzle where the player fills an NxN grid with letters and empty cells.
• Akari (Light Up) Akari, also known as Light Up, is a logic puzzle played on a rectangular grid containing white cells and black cells (walls).
• Creek Creek is a binary shading puzzle where numbers are placed at the intersections of the grid lines (where four cells meet).
• Dominosa Dominosa is a logic puzzle where a rectangular grid is filled with numbers, and the player must partition it into dominoes — pairs of adjacent cells (horiz
• Fillomino Fillomino is a grid puzzle where the player fills every empty cell with a number so that each group of connected identical numbers forms a polyomino (a con
• Futoshiki Futoshiki is a logic puzzle played on an NxN grid (typically 5x5 or 6x6) where the player must fill every cell with a digit from 1 to N so that no digit re
• Galaxies (Tentai Show) Galaxies, also known as Tentai Show or Spiral Galaxies, is a grid puzzle where the player divides a rectangular grid into regions, each containing exactly
• Hashiwokakero (Bridges) Hashiwokakero, commonly known as Bridges or Hashi, is a logic puzzle played on a grid containing numbered circles called "islands." The player must draw ho
• Hidato Hidato (also known as Hidoku) is a logic puzzle where the player must fill a grid with consecutive numbers that connect to each other horizontally, vertica
• Hitori Hitori is a logic puzzle where the player starts with a grid completely filled with numbers.
• Kakurasu Kakurasu is a binary grid puzzle where the player must decide which cells in each row and column to shade.
• Kakuro Kakuro is a number puzzle often described as a mathematical crossword.
• KenKen KenKen (also marketed as Mathdoku or Calcudoku) is an arithmetic-logic puzzle played on an NxN grid.
• Killer Sudoku Killer Sudoku (also known as Sum Sudoku) combines elements of Sudoku and Kakuro.
• Masyu Masyu is a loop-drawing logic puzzle played on a grid containing white and black circles (pearls).
• Minesweeper Minesweeper is one of the most iconic computer puzzles ever created.
• Nonogram (Picross) Nonograms, also known as Picross, Griddlers, or Paint by Numbers, are picture logic puzzles where the player fills in cells on a grid to reveal a hidden image.
• Numberlink Numberlink is a path-drawing puzzle where the grid contains pairs of identical numbers.
• Nurikabe Nurikabe is a logic puzzle played on a grid where some cells contain numbers.
• Shikaku Shikaku (also called Rectangles) is a logic puzzle where the player must divide a grid into non-overlapping rectangles (or squares).
• Skyscrapers Skyscrapers is a logic puzzle played on an NxN grid where each cell represents a building of a certain height (1 to N stories).
• Slitherlink Slitherlink (also called Fences, Loop the Loop, or Dotty Dilemma) is a logic puzzle played on a grid of dots.
• Star Battle Star Battle is a logic puzzle where the player must place stars in a grid divided into irregularly shaped regions.
• Sudoku Sudoku is the world's most popular logic puzzle.
• Sudoku Mini Sudoku Mini is a simplified version of the classic Sudoku puzzle, played on smaller grids — typically 4x4 or 6x6 instead of the standard 9x9.
• Sudoku X (Diagonal Sudoku) Sudoku X, also known as Diagonal Sudoku, adds one extra constraint to the classic Sudoku puzzle: in addition to the standard rules, both main diagonals of
• Suguru (Tectonic) Suguru, also known as Tectonic or Tectonics, is a number-placement puzzle played on a grid divided into irregularly shaped groups (regions) of cells.
• Takuzu (Binary / Binario) Takuzu, also known as Binary, Binario, or Binairo, is a logic puzzle played on an even-sized grid (typically 6x6, 8x8, 10x10, or 12x12).
• Tents and Trees Tents and Trees (also called Tents, or Zeltlager in German) is a logic puzzle played on a grid containing trees.
• Thermometers Thermometers is a logic puzzle played on a grid containing thermometer shapes.