Logic Masters Deutschland e.V.

Cross Purposes (Quad Sums Killer Anti-King)

(Eingestellt am 6. Juni 2022, 02:42 Uhr von tallcat)

Was inspired by Udukos' brilliant 'Quad Sums Sudoku' and Grkles 'Quandary' to set a puzzle with the Quad Sums constraint. Hope you enjoy, and let me know what you think!

Normal Sudoku rules apply

Quad Sums: For each set of four cells touched by the same circle, the sum of three of the cells must equal the fourth cell. Not all circles have been given.

Anti-King: Cells a king's move apart in chess may not contain the same digit.

Killer: Digits in cages must sum to the given total.



Can be played online at f-puzzles or CTC

Lösungscode: Row 2 (left to right) followed by column 8 (top to bottom). 18 digits, no spaces.


Gelöst von Elliott810, Bjd, udukos, Andrewsarchus, PulverizingPancake, Vebby, AvonD, grkles, the_cogito, abed hawila, kolot, SirWoezel, polar, tinounou, Playmaker6174, arialy, SSG, fjam, twototenth, ... karlmortenlunna, hoogachakka, Christounet, Bellsita, Bobbobert, tess, roflsalot, gdc, isajo4002, gxorgx, valle1124, Qodec, mcs131313, mezkur7, SudokuHero, Piatato, PsychedelicCreature
Komplette Liste

Kommentare

am 3. Februar 2026, 22:53 Uhr von Piatato
Cool!

am 21. Dezember 2025, 08:20 Uhr von mezkur7
https://sudokupad.app/iwlp08x2w1

am 27. August 2023, 00:03 Uhr von Christounet
Cool break-in, with clever interactions between the very sparse clues in the grid. Thanks !

am 22. Juni 2022, 18:52 Uhr von Niverio
Wonderful! Such an elegant break-in!

am 12. Juni 2022, 19:17 Uhr von ocaly
What a great break-in and loved the logic!
Very nice :)

(note to myself: solved it two days ago around this time but forgot to fill in the solution code)

am 10. Juni 2022, 00:34 Uhr von peacherwu2
Enjoyed every minute. Brilliant idea!

am 9. Juni 2022, 18:13 Uhr von Playmaker6174
Absolutely fabulous puzzle, from the beautiful opening sequence to the nice interactions later on, that quad sum in box 1 is really funky there :)

am 8. Juni 2022, 13:51 Uhr von kolot
Very nice puzzle!

am 8. Juni 2022, 09:17 Uhr von abed hawila
Superb puzzle!

am 7. Juni 2022, 02:03 Uhr von Andrewsarchus
Beautiful break-in!

am 6. Juni 2022, 20:44 Uhr von udukos
Great puzzle with a cool entry. Thanks, tallcat!

am 6. Juni 2022, 06:13 Uhr von Elliott810
Beautiful construction! Thanks:)

Schwierigkeit:4
Bewertung:99 %
Gelöst:68 mal
Beobachtet:13 mal
ID:000A58

Lösung abgeben

Lösungscode:

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