#594, May 18 - May 24, 2024: The Weekly 'Unsolvable' Sudoku Puzzle
by Richard Kröger, guest compiler
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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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Discussion...
Post an idea here...
... by: Dieter
Try to complete DEF 456 with F2=(1,4,6,7) which has big impact on all cells
F2=1 and F2=4 failed
continue with F2=6: solves with J7=5
... by: Serban
# 594 Basics to 22
1. Number 1 n=3 e=6 N=17 Nc=8 Ns=2 => D1=B8=1 basics to 30
1a. Row J n=5 e=4 Nc=2 Ns=1 => J1=3 OR J6=2 OR J7=5 OR J9=6 solve
2. Number 2 n=3 e=6 N=17 Nc=7 Ns=2 => J6 = C5 =2 solve
3. Number 7 n=2 e=7 N=29 Nc=28 Ns=25 => E1 = H8 =7 solve
4. Box 7 ABC789 n=3 e=6 Nc=24 Ns=4 => A9=4 & C9=5 solve