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The object is to draw diagonal lines in each cell of the grid, such that the number in each circle equals the number of lines extending from that circle. Additionally, it is forbidden for the diagonal lines to form an enclosed loop. Unlike many of Nikoli's similar puzzles, such as Hashiwokakero, a single network of lines is not required.
1 Games and puzzles. 2 Logic. ... Ko-free Go [6] Ladder capturing in Go [7] Gomoku [8] ... Equivalence problem for star-free regular expressions with squaring.
Tsumego (詰碁) is the Japanese term for a type of go problem based on life-and-death. The term likely comes from tsumeshogi (詰将棋, tsumeshōgi), as tsumeru (詰める) means checkmating in shogi but has different meanings in go. Tsumego problems are common in newspaper columns.
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Hashiwokakero (橋をかけろ Hashi o kakero; lit. "build bridges!") is a type of logic puzzle published by Nikoli. [1] It has also been published in English under the name Bridges or Chopsticks (based on a mistranslation: the hashi of the title, 橋, means bridge; hashi written with another character, 箸, means chopsticks).
The remaining rules differentiate Heyawake from other "dynasty" puzzles: Rule 5 is the defining rule of the puzzle; black cells must be placed to prevent any (orthogonal) lines of white cells that cross two room borders ("spanners"). Numbered rooms typically provide solvers a starting place, among other deductions.
A Sudoku starts with some cells containing numbers (clues), and the goal is to solve the remaining cells. Proper Sudokus have one solution. [1] Players and investigators use a wide range of computer algorithms to solve Sudokus, study their properties, and make new puzzles, including Sudokus with interesting symmetries and other properties.
Robot in a wooden maze. A maze-solving algorithm is an automated method for solving a maze.The random mouse, wall follower, Pledge, and Trémaux's algorithms are designed to be used inside the maze by a traveler with no prior knowledge of the maze, whereas the dead-end filling and shortest path algorithms are designed to be used by a person or computer program that can see the whole maze at once.