... by: Dieter
row E and DEF 456 have minimum possible numbers (19 each) in cellsStart with reducing possible numbers: E1 = (2,9) and E7 = (2,4,5,6)
E1=9 and E7=4 >> solved
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#593, May 11 - May 17, 2024:
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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). |
Discussion...
Post an idea here...Monday 13-May-2024
Start with reducing possible numbers: E1 = (2,9) and E7 = (2,4,5,6)
E1=9 and E7=4 >> solved
Monday 13-May-2024
... by: Frans Goosens
#593Combination 2-digits cells
C8=2 No solution, Undo calculation
C8=5 No solution, Undo calculation
E1=2 No solution, Undo calculation
E1=9 ( E4=6 ) Solved,
Total solving time is : 6 sec.
Number of logical steps is : 644
Monday 13-May-2024
... by: Frans Goosens
#593Combinatie 2-cijferige cellen
C8=2 Geen oplossing, Ongedaan gemaakt.
C8=5 Geen oplossing, Ongedaan gemaakt.
E1=2 Geen oplossing, Ongedaan gemaakt.
E1=9 ( E4=6 ) Opgelost,
Totale oplostijd is: 7 sec.
Aantal logische stappen is : 644
Saturday 11-May-2024
... by: Serban
# 593 Basics to 221. Number 3 n=3 e=6 N=19 Nc=15 Ns=10 => F2=G4=3 basics to 52
1a. XY-wing 459 [H1,AJ2]=>[A1,G2]<>5 => A1=2 OR H1=5 solve
2. Number 4 n=3 e=6 N=18 Nc=10 Ns=6 => E7 = H6 =4 solve
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