#625, December 21 - December 27, 2024:
The Weekly 'Unsolvable' Sudoku Puzzle
by Andrew Stuart
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WARNING: This is the Weekly 'Unsolvable' Sudoku, rated above 'Extreme'.
This is currently unsolvable by my solver, except perhaps with trial and error strategies.
Using the solver will not help you. (much).
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Archive
Each week a new 'unsolvable' will be published and the previous will be accessible here from this archive section.
If you like very tough puzzles, these are for you.
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Supporter Members have access to all these puzzles going back to number 1.
Discussion...
Post an idea here...
... by: Serban
# 625 E4=J8=1 D6=3 E9=9 G4=4 Basics to 30
1. Number 2 n=2 e=7 N=23 Nc=11 Ns=3 => H3=2 solve
2. Number 3 n=3 e=6 N=18 Nc=6 Ns=4 => G2=3 solve
3. Number 5 n=4 e=5 N=15 Nc=10 Ns=1 => A1=5 solve
Note: D9=5
4. Number 8 n=4 e=5 N=15 Nc=10 Ns=10 => H4=8 solve
Note: B9=8
