A chessboard is a game board used to play chess. It consists of 64 squares, 8 rows by 8 columns, on which the chess pieces are placed. It is square in shape and uses two colours of squares, one light and one dark, in a chequered pattern. During play, the board is oriented such that each player's near-right corner square is a light square.
A crossword is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one letter, while the black squares are used to separate entries. The first white square in each entry is typically numbered to correspond to its clue.
Battleship is a strategy type guessing game for two players. It is played on ruled grids on which each player's fleet of warships are marked. The locations of the fleets are concealed from the other player. Players alternate turns calling "shots" at the other player's ships, and the objective of the game is to destroy the opposing player's fleet.
Nonograms, also known as Hanjie, Paint by Numbers, Picross, Griddlers, and Pic-a-Pix, are picture logic puzzles in which cells in a grid must be colored or left blank according to numbers at the edges of the grid to reveal a hidden picture. In this puzzle, the numbers are a form of discrete tomography that measures how many unbroken lines of filled-in squares there are in any given row or column. For example, a clue of "4 8 3" would mean there are sets of four, eight, and three filled squares, in that order, with at least one blank square between successive sets.
Kakuro or Kakkuro or Kakoro is a kind of logic puzzle that is often referred to as a mathematical transliteration of the crossword. Kakuro puzzles are regular features in many math-and-logic puzzle publications across the world. In 1966, Canadian Jacob E. Funk, an employee of Dell Magazines, came up with the original English name Cross Sums and other names such as Cross Addition have also been used, but the Japanese name Kakuro, abbreviation of Japanese kasan kurosu, seems to have gained general acceptance and the puzzles appear to be titled this way now in most publications. The popularity of Kakuro in Japan is immense, second only to Sudoku among Nikoli's famed logic-puzzle offerings.
Lights Out is an electronic game released by Tiger Electronics in 1995. The game consists of a 5 by 5 grid of lights. When the game starts, a random number or a stored pattern of these lights is switched on. Pressing any of the lights will toggle it and the adjacent lights. The goal of the puzzle is to switch all the lights off, preferably with as few button presses as possible.
Sudoku is a logic-based, combinatorial number-placement puzzle. In classic Sudoku, the objective is to fill a 9 × 9 grid with digits so that each column, each row, and each of the nine 3 × 3 subgrids that compose the grid contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a single solution.
Monte Carlo is a pair-matching patience or card solitaire game using a pack of 52 playing cards where the object is to remove pairs from the tableau. Despite its name, it has no relation to the city with the same name nor to any casino-related game. Alternative names for this game include Good Neighbours and Weddings.
Poker Squares is a patience game with the objective of building the best poker hands using just 25 cards from the deck. It rewards both lucky guessing and accurate calculation of odds.
Mario's Picross is a 1995 puzzle video game developed by Jupiter and Ape Inc. and published by Nintendo for the Game Boy. It is a compilation of nonogram logic puzzles. The game stars Mario who chisels away at puzzle grids to form pictures. The game initially received positive reviews, with reviewers citing its length and addictive nature as a positive, but its grid sizes and absence of typical Mario elements as a negative.
Games World of Puzzles is an American games and puzzle magazine. Originally the merger of two other puzzle magazines spun off from its parent publication Games magazine in the early 1990s, Games World of Puzzles was reunited with Games in October 2014.
Mathematics can be used to study Sudoku puzzles to answer questions such as "How many filled Sudoku grids are there?", "What is the minimal number of clues in a valid puzzle?" and "In what ways can Sudoku grids be symmetric?" through the use of combinatorics and group theory.
This is a glossary of Sudoku terms and jargon. Sudoku with a 9×9 grid is assumed, unless otherwise noted.
Cribbage Squares, occasionally Cribbage Square, is a patience or card solitaire based on Cribbage which can be played using a deck of playing cards. This game works the same way as Poker Squares, but with cribbage scoring.
Chuzzle is a tile-matching puzzle video game developed by American studio Raptisoft Games and published by PopCap Games. The game involves connecting three or more fuzzballs named Chuzzles.
Puzzle League, known as Panel de Pon in Japan, is a series of video games published by Nintendo for its various video game consoles. The series began with Panel de Pon in Japan, named Tetris Attack in North America, and has since been adapted to many other consoles. The core gameplay of each version is the same in each game, but branding, presentation details and console-specific features have varied.
Microsoft Minesweeper is a minesweeper-type video game created by Curt Johnson, originally for IBM's OS/2, that was ported to Microsoft Windows by Robert Donner, both Microsoft employees at the time. First released as part of the Microsoft Entertainment Pack 1 in 1990, it was first included in the standard install of Windows 3.1 in 1992, replacing Reversi from Windows 3.0. Microsoft Minesweeper was included without major changes in all subsequent Windows releases until Windows Vista, at which time an updated version by Oberon Media replaced it. In Windows 8 and later the game is not included with a fresh Windows install, but Microsoft Studios has published an updated version of it, developed by Arkadium, on Microsoft Store.
A Survo puzzle is a kind of logic puzzle presented and studied by Seppo Mustonen. The name of the puzzle is associated with Mustonen's Survo system, which is a general environment for statistical computing and related areas.
KenKen and KenDoku are trademarked names for a style of arithmetic and logic puzzle invented in 2004 by Japanese math teacher Tetsuya Miyamoto, who intended the puzzles to be an instruction-free method of training the brain. The name derives from the Japanese word for cleverness. The names Calcudoku and Mathdoku are sometimes used by those who do not have the rights to use the KenKen or KenDoku trademarks.
Takuzu, also known as Binairo, is a logic puzzle involving placement of two symbols, often 1s and 0s, on a rectangular grid. The objective is to fill the grid with 1s and 0s, where there is an equal number of 1s and 0s in each row and column and no more than two of either number adjacent to each other. Additionally, there can be no identical rows or columns. Similar to Sudoku, each puzzle begins with several squares in the grid already filled.
