Doku - 10 things to know with detail
- 1. Doku, also known as Sudoku, is a popular logic-based number puzzle game that originated in Japan in the late 19th century.
- 2. The objective of Doku is to fill a 9x9 grid with numbers so that each row, each column, and each of the nine 3x3 subgrids contain all of the digits from 1 to 9.
- 3. Doku puzzles range in difficulty from easy to hard, with some requiring advanced logic and problem-solving skills to solve.
- 4. The puzzle starts with some numbers already filled in, which serve as clues to help players determine the correct placement of the remaining numbers.
- 5. Doku puzzles can be solved by using a process of elimination, logic, and reasoning to determine the correct placement of numbers in each row, column, and subgrid.
- 6. Players must follow the rules of the game, which include not repeating any numbers in a row, column, or subgrid, and ensuring that each number appears only once in each of these areas.
- 7. Doku puzzles can be solved using basic techniques such as scanning, cross-hatching, and naked pairs, as well as more advanced strategies such as X-wing, swordfish, and coloring.
- 8. Doku puzzles are available in various formats, including books, newspapers, online websites, and mobile apps, making it accessible to players of all ages and skill levels.
- 9. Doku is a popular pastime for many people around the world, providing a challenging and satisfying way to exercise the brain and improve cognitive skills.
- 10. Solving Doku puzzles can help improve memory, concentration, and critical thinking skills, making it a fun and beneficial activity for individuals looking to challenge themselves mentally.