Until Ten (10-lines, parity mirror)
(Eingestellt am 20. Februar 2023, 15:28 Uhr von the_cogito)
Rules:
- Normal sudoku rules apply.
- Lines are 10-lines, and must be split into non-overlapping groups of contiguous digits, each summing to 10.
- The odd/even parity of every cell is reflected across the indicated diagonal (eg r4c2 and r2c4 must have the same parity)
Solve on Penpa+
Solve on Sudokupad
Lösungscode: Row 1 followed by column 1 (18 digits, no spaces)
Kommentare
am 14. Januar 2024, 12:39 Uhr von mezkur7
These ten lines are so confusing. Man, I restarted the grid twice, still I had two close calls where I thought I lost it again.
Here's the link with the solution for the lazy guys:
https://shorturl.at/wEKQ0
am 1. Juni 2023, 04:53 Uhr von OldCaptainWZJ
Really interesting combination of rules. The logic used to get the first digit in Box 3 is fantastic.
am 18. März 2023, 21:37 Uhr von Avg Sudoku Enjoyer
Great puzzle! It's amazing how much work you can do with the parity mirror and how the parity interacts with the 10 lines
am 23. Februar 2023, 21:51 Uhr von Phistomefel
A very nice and enjoyable puzzle. Thank you, the_cogito! :)
am 23. Februar 2023, 04:03 Uhr von Agent
Cool puzzle, some really neat interactions!
am 22. Februar 2023, 16:46 Uhr von madhupt
Lovely puzzle. Beautiful bits of logic all the way to a smooth solve.
am 21. Februar 2023, 22:17 Uhr von peterkp
Rules clarification please :) What do you mean by 'parity'? (I ask because I've seen it used in different ways: high/low, odd/even, etc.)
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Good point! I mean odd/even parity :)
am 21. Februar 2023, 18:33 Uhr von henrypijames
Nice, but only 2⅓ difficulty for me.
am 20. Februar 2023, 20:31 Uhr von Perladel
Very smooth and enjoyable puzzle!
I think it's a 3 stars but you have to be VERY careful to consider all the possibilities
am 20. Februar 2023, 19:55 Uhr von Jesper
Fun and smooth puzzle, thanks!
am 20. Februar 2023, 16:13 Uhr von Raumplaner
Fantastic puzzle!
am 20. Februar 2023, 15:55 Uhr von zegres
Very nice use of Parity Mirror.
Excellent deductions throughout, very enjoyable!
am 20. Februar 2023, 15:30 Uhr von Myxo
Beautiful combination of constraints and a really smooth solve!
