Numbrix is a logic-based number-placement puzzle. The objective of Numbrix is to fill the grid so that each cell contains digits in sequential order taking a horizontal or vertical path; diagonal paths are not allowed in Numbrix. The puzzle setter provides a grid often with the outer most cells completed. Completed Numbrix puzzles are usually a...more

Numbrix is a logic-based number-placement puzzle. The objective of Numbrix is to fill the grid so that each cell contains digits in sequential order taking a horizontal or vertical path; diagonal paths are not allowed in Numbrix. The puzzle setter provides a grid often with the outer most cells completed. Completed Numbrix puzzles are usually a square of numbers in order from 1 to 64 (8×8 grid) or from 1 to 81 (9×9 grid), following a continuous path in sequence. The modern Numbrix puzzle was invented by Marilyn vos Savant in 2008 and published by Parade Magazine under the name "Numbrix", near her weekly Ask Marilyn article. Numbrix puzzles are generated manually. The puzzles begin with the following two blocks, which are the beginning point for all the puzzle sets. Each row is connected to a specific cell using a unique string that is placed at the beginning or middle of each of the set. Each row is preceded...