Anti-Knight-and-Queen Sudoku [WSC 2013]

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Is this suitable for a Sudoku competition

Yes
7
88%
Maybe
0
No votes
No - a cultural advantage if you are familiar with chess
0
No votes
No - the constraint only applies to certain symbols
1
13%
 
Total votes: 8

detuned
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Anti-Knight-and-Queen Sudoku [WSC 2013]

Post by detuned » Sun 13 Jan, 2019 4:51 pm

Anti-Knight-and-Queen Sudoku [WSC 2013].png
Anti-Knight-and-Queen Sudoku [WSC 2013].png (184.88 KiB) Viewed 426 times
Source: 2013 WSC, Beijing.

There is no specific reason to use N and Q rather than 8 or 9 beyond being familiar with Chess notation. The constraints are bespoke to certain symbols, rather than applying to all of them. In this respect, it is similar to Star Battle Sudoku.

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