Logic Masters Deutschland e.V.

111155559999

(Published on 27. June 2022, 16:29 by grkles)

This is a puzzle that my 12-year-old son and I set together one morning. It turned out exceptionally well, and I hope you enjoy!

Normal sudoku rules apply.

Quadruples: Digits in a circle must appear at least once in the four cells the circle touches.

159: Each digit in column 1 indicates the position of the 1 in the same row (for instance, if row 3 column 1 is a 2, row 3 column 2 is a 1). The same is true of columns 5 and 9 for the digits 5 and 9, respectively.

Solve online:

Solution code: Row 7, followed by column 3 (18 digits, no spaces).


Solved by Niverio, Isa, Johannes Quack, jalebc, SKORP17, Krokant, AvonD, ranhothchord, Playmaker6174, Julianl, SimiC, cfop, Razer, DVFrank, beesquestionmark, Gullie, Elliott810, ashwin, PippoForte, noname1477, ... lmdemasi, Migu, MaxSmartable, pepe74287, zhergan, ScienceNerd2240, starelev5, Just me, erkiraak, jherr, MicroStudy, Bulkystapler, k2u5as, jadezki, lpq29743, Felis_Timon, koiking, ignigomoreno
Full list

Comments

Last changed on 18. December 2023, 00:04

on 18. December 2023, 00:02 by ScienceNerd2240
solution code doesn't seem to be working for me currently, I've tried multiple times carefully entering the digits

edit: nvm figured it out. the ctc app didn't check for the proper digits around the quads

on 27. September 2023, 07:13 by cascadeshiker
Very nice. Very enjoyable. I'll be looking out for more 159 puzzles.

on 12. August 2022, 09:28 by Crusader175
Beautiful puzzle!

on 12. August 2022, 05:13 by SHERAX
Fairly Easy But Highly Original

on 12. August 2022, 05:13 by SHERAX
Fairly Easy But Highly Original

on 30. June 2022, 09:03 by 99jau99
I really enjoyed solving this puzzle. Congratulations to both of you!

on 30. June 2022, 07:20 by cristophermoore
Delightful! Congratulations to you both.

on 28. June 2022, 17:35 by Christounet
That's my boy !!

on 28. June 2022, 13:22 by Chilly
Lovely puzzle - watch out grkles, looks like grkles junior is going to take over!

on 28. June 2022, 03:17 by Vebby
Very nice! Flowed beautifully.

on 27. June 2022, 23:18 by Chelo
Very nice puzzle, many thanks to you and to your son for setting and sharing!..

on 27. June 2022, 22:06 by Elliott810
Beautiful puzzle! One can literally see how this puzzle was set. Shout-out to father and son:)

on 27. June 2022, 20:07 by Playmaker6174
Lovely puzzle! Nice to see the unexpected teamwork there :)

on 27. June 2022, 16:31 by Niverio
Very nice! I cannot wait for Grkles Jr. to come up with mind blowing ideas soon :)

Difficulty:3
Rating:96 %
Solved:210 times
Observed:9 times
ID:000ACF

Variant combination Online solving tool

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Solution code:

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