Uniqueness and Diagonals

Advanced methods and approaches for solving Sudoku puzzles

Uniqueness and Diagonals

Postby Lardarse » Mon May 14, 2007 1:18 pm

I have a question, that came up while trying to solve a sudoku that I made over a year ago.

Consider the following grid, which is a diagonal sudoku:

Code: Select all
.........
.........
.....B.B.
.....B.B.
.........
AA.......
.........
AA.......
.........

The cells marked A are either X or Y. The cells marked B are either X or Z.

My question is: Am I able to deduce anything about how these cells are arranged, without having to try to find Y or Z elsewhere on that diagonal?
Lardarse
 
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Joined: 01 July 2005

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