Rooted: Created page with "A digit placed into a cell without a logical reason. A controversial way to solve a Sudoku, usually employed when the player cannot advance using the solving te..."

2020-06-05T02:18:11Z

Created page with "A digit placed into a cell without a logical reason. A controversial way to solve a Sudoku, usually employed when the player cannot advance using the solving te..."

New page

A [[digit]] placed into a [[cell]] without a logical reason.

A controversial way to solve a [[Sudoku]], usually employed when the player cannot advance using the [[solving technique]]s he or she has mastered. When the '''guess''' leads immediately to the [[solution]], the player has found a [[backdoor]]. Alternatively, when the guess leads to a [[contradiction]], the player must [[backtrack]] to the state before the digit was placed and he or she can [[eliminate]] the [[candidate]] for that digit. This method is also known as [[Trial & Error]].
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[[Category:Uniqueness]]
[[Category:Solving Techniques]]

Guess - Revision history

Rooted: Created page with "A digit placed into a cell without a logical reason. A controversial way to solve a Sudoku, usually employed when the player cannot advance using the solving te..."