#592, May 4 - May 10, 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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Discussion...
Post an idea here...
... by: Frans Goosens
#592
Combination 2-digits cells
B8=2 No solution, Undo calculation
B8=6 No solution, Undo calculation
E1=1 No solution, Undo calculation
E1=9 Wrong, Undo calculation
E1=1 No solution, Fixed
B1=7 Wrong, Undo calculation
B1=9 ( I6=9 ) Solved,
Total solving time is : 64 sec.
Number of logical steps is : 9842
... by: Dieter
B7 = 8 with basics
start with GHJ 123; G3 = (3,4,8); G3=4 and G3=3 failed
G3=8 and G1 = (2,4) > 2 matrices remaining; G1=4 failed
G3=8; G1=2; H3=4 and H4=5 solved
... by: Serban
# 592 B7=8 Basics to 24
1. Row H n=3 e=6 Nc=14 Ns=10 => H5=8 &[ H7=7 OR OR H3=4 OR H4=5] solve
2. Row J n=3 e=6 Nc=22 Ns=5 => J8=2 & J5=4 solve
3.Number 8 n=3 e=6 N=16 Nc=8 Ns=1 => C4=H5=8 solve
4.Number 9 n=3 e=6 N=19 Nc=5 Ns=1 => B1=A5=9 solve
... by: James Havard
B1=9 with F6=4
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.Share and Enjoy