Mods & Quads
(Published on 14. October 2023, 00:11 by marty_sears)
This is the second in a mini-series that myself and ThePedallingPianist have created together.
Part 1: Mods
Part 2: Mods and Quads
Part 3: Mods, Quads and Odds
Part 4: Mods, Quads, Odds and Schröds
Rules:
- Normal sudoku rules apply.
- Turquoise lines are 'Same Difference' lines. Each pair of adjacent digits on one of these lines has the same difference. However, this 'difference value' may be different for different lines.
- Each quad circle contains four digits which must appear in the four surrounding cells. Unfortunately these quad clues have all been written in white text, and so are invisible. Digits might repeat within a quad circle.
- Furthermore, a digit in a quad circle indicates exactly how many times that digit appears in a quad circle. Eg: if there is a 5 in a quad circle, there are five 5s in quad circles, and some of these might be in the same circle.
Click here to play on the CTC app
Please leave a comment if you enjoy :)
And here's another puzzle featuring these lines: Same Difference
Solution code: row 5
Comments
on 24. October 2024, 17:57 by jakestilesowen
Surprising and difficult. Had to use a lot of corner marks to figure it out but still enjoyed it.
on 14. February 2024, 11:50 by QuiltyAsCharged
Gods, that was a great puzzle! *applauds*
on 9. February 2024, 23:02 by jellef
Wew, I struggled for 20 hours and then gave up. Months later I came back to give it another try and I solved the remaining bit in 20 minutes! Really needed a fresh mind there :D
on 7. December 2023, 11:00 by Snookerfan
Brilliant puzzle! Thank you
on 18. October 2023, 18:06 by ViKingPrime
This series is continually full of surprises! Some of the best sudoku I've had the pleasure of working through, period.
on 17. October 2023, 12:22 by giladooshlon
That is a wonderful puzzle and not too hard once you correctly understand the rules. I find it amazing that quads can be used in such a way.
on 16. October 2023, 21:25 by tsc
Novel and full of neat logic. Thanks for the great puzzle!
on 16. October 2023, 20:08 by samuel1997
This is quite incredible that quad circles can be used like this! Excellent!
on 15. October 2023, 15:15 by Fool on Hill
Nice use of the unusual rules to make a puzzle which flows smoothly - enjoyed a lot.
on 14. October 2023, 03:11 by ymhsbmbesitwf
I enjoyed it! It's difficult, but not overwhelming.
