Strategies for Popular Number Puzzles

#603, July 20 - July 26, 2024:
The Weekly 'Unsolvable' Sudoku Puzzle

by Klaus Brenner, guest compiler

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).


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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Sunday 21-Jul-2024

... by: Dieter

#603 - basics: %
combinations of A3 / B5 = (6,7) / (3,4,8)
A3 / B5 = 6 / 3 solves with B7=6

Sunday 21-Jul-2024

... by: Serban

# 603 Basics to 23

1. Number 4 n=3 e=6 N=19 Nc=14 Ns=5 => E3=D8=4 solve

2. Number 5 n=2 e=7 N=28 Nc=28 Ns=1 => B1=G3=5 solve

3. Box 3 GHJ123 n=3 e=6 Nc=26 Ns=5 => G1=4 & J3=1 solve
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