Logic Masters Deutschland e.V.

Recurring Nightmares

(Published on 16. October 2022, 01:00 by Jay Dyer)

Inspired by Zetamath's puzzles Zeta's Nightmare and Double Double.

Rules

  • Normal sudoku rules apply.
  • Each line connecting two circles is either a between line (the digits on the line are between, and not equal to, the digits in the circles) or a double arrow (the sum of the digits on the line equals the sum of the digits in the circles), but not both.
  • Nine cells in the grid (one per row/column/box) are doublers and count as double their value. Every digit appears in exactly one doubler.

Solve in f-puzzles or Sudokupad.

Solution code: Column 3 and row 7.

Last changed on on 24. October 2022, 18:14

Solved by Bellsita, ONeill, lsw770770, Jesper, polar, rmn, henrypijames, Dentones, KNT, AvonD, bansalsaab, Ryzen, Qodec, cdwg2000, peacherwu2, TotallyNormalCat, Niverio, Christounet, bittersteel, BloodbuzzCorio, akamchinjir, ddx2407, rmm466ss, SKORP17, OGRussHood, Vebby, Ultimatemeowmix, dogfarts, flyjim, PippoForte, Myxo, ClashCode, damasosos92, h5663454, duckling, widjo, SudokuHero, ahmadasiabi
Full list

Comments

on 18. July 2023, 01:31 by Myxo
Lovely puzzle!

on 25. October 2022, 15:42 by rmm466ss
A very nice puzzle! I loved how the interplay between deciding a "between" vs "sum" really affected the solution path.

on 24. October 2022, 07:30 by ddx2407
Loved it! And I also find it not so difficult. Very well done, Jay. Thank you!

on 18. October 2022, 03:15 by cdwg2000
Very nice!awesome set.

on 17. October 2022, 21:40 by Christounet
The quintessence of the doubler puzzles...

on 17. October 2022, 20:31 by Niverio
Awesome puzzle! Very enjoyable deductions throughout, and never fully brutal!

on 16. October 2022, 20:38 by KNT
fantastic, my new favorite doubler puzzle :)

on 16. October 2022, 12:57 by Jesper
Great puzzle, thanks!

on 16. October 2022, 10:35 by lsw770770
very nice!

on 16. October 2022, 05:15 by ONeill
Brilliant doubler puzzle with some really fun deductions throughout, especially the break-in!

Difficulty:5
Rating:97 %
Solved:38 times
Observed:7 times
ID:000BNG

Variant combination Online solving tool

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Solution code:

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