hardest 6x6?

Everything about Sudoku that doesn't fit in one of the other sections

Re: hardest 6x6?

Postby philvo » Sun Jan 12, 2025 8:23 pm

Here are other variants of 6x6 puzzles :
X-sudokus with 5 givens and empty diagonals :
Code: Select all
  . . . 5 . .    . . . 5 . .    . . . . . .    . . . . . .    . . . . . .
  . . . 1 . .    . . . . . .    . . . . . .    . . 4 . . .    5 . . . . .
  . . . . 2 .    . . . . . .    . . . . 6 3    . . . . . 5    1 . . . . .
  . 4 . . . .    . . . . 3 2    . 1 . . 4 .    . . . . . 3    . . . . 2 3
  . . . 3 . .    6 . . . . .    . . . 2 . .    . . . . . .    . . 6 . . .
  . . . . . .    . . . 1 . .    . . . . . .    . . . 6 2 .    . . . . . .

X-sudokus with 5 givens and symmetry/diagonal :
Code: Select all
  . . . . . .    . . . . . .    . . . . . .    . . . . 3 .    2 . . . . .
  . 6 . . . .    . . . . 6 .    3 . . . . .    . . 5 . . .    . . . 5 . .
  . . . . . 2    3 . . . . .    . . . 2 . .    . 4 6 . . .    . . . . . 4
  . . . 4 . .    . . . . . .    1 . . . . .    . . . . . .    . 1 . . . .
  . . . . . .    1 . . . . .    . . . . . .    2 . . . . .    . . . . . .
  . . 1 . . 5    . 5 . 2 . .    . . 5 . 6 .    . . . . . .    . . 3 . . .

Hidden Text: Show
Code: Select all
...5.....1......2..4.......3........
...5..................326........1..
................63.1..4....2........
........4........5.....3.........62.
......5.....1.........23..6.........

.......6.........2...4..........1..5
..........6.3...........1......5.2..
......3........2..1.............5.6.
....3...5....46.........2...........
2........5.......4.1............3...

I hope you find them interesting.
phil
philvo
 
Posts: 77
Joined: 18 January 2022

Re: hardest 6x6?

Postby jco » Tue Jan 14, 2025 7:57 pm

Hi phil,

I hope you find them interesting.
phil


Very interesting! It was my first time solving an X-sudoku.
The additional powers that we gain from inferences along the diagonals are nice !
I have solved just the first one (in 5 main steps), but I need more practice
to be more efficient in finishing the puzzle.

Thank you for making available these puzzles.
JCO
jco
 
Posts: 774
Joined: 09 June 2020

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