Rules:
Sudoku: Place digits 1-9 in every single row, column, and 3x3 box.
Between Lines: Digits along a line must be between the values found in that line's circles.
Quadruples: Digits in a white circle must appear in the four surrounding cells.
Note: Regarding the lines in Box 5: The circles in Box 4 and Box 6 both connect to Box 8, but not to each other.
Puzzle Links: You can solve this puzzle in either F-Puzzles or in CTC software. CTC version does have answer check.
Solution code: First Row 8, then Column 4 (No commas or spaces, 18 digits)
on 23. May 2024, 15:45 by Christounet
Very intricate network ! I had to really use all the wires in my brain to navigate through all this. Thanks :)
on 8. March 2023, 14:26 by glum_hippo
I'll add my voice to the chorus of praise for this puzzle. LA LA LA LA LA LAAAA
on 4. March 2023, 22:45 by antiknight
Very nice break-in idea ! I've really enjoyed that and a couple of deductions in the mid-solve.
on 2. March 2023, 00:41 by KNT
Really well set. I always felt I knew where to look, but I never knew what I was looking for, which is what I like most in puzzles. Impressive to capture that with rules so thoroughly explored
on 24. February 2023, 19:50 by Playmaker6174
What an intricate and engaging puzzle till the very end! Really enjoyed the initial opening, and then a couple of crazy interactions in the middle, I was a bit slipped at that point too :P
on 23. February 2023, 23:30 by ONeill
Great puzzle! Pretty difficult for me.
on 21. February 2023, 19:29 by peacherwu2
Very beautiful and original logic. A true master combining two rulesets.
on 19. February 2023, 18:30 by JayForty
Beautiful break-in and all through very satisfying and clever. Thanks Niv!
on 19. February 2023, 17:38 by TheRiddler
Very cool puzzle and mind-blowing interactions between the two constraints!
on 19. February 2023, 15:58 by Tyrgannus
Here, have this trophy for Geometry King, 2023
on 18. February 2023, 17:53 by thoughtbyte
Beautiful, as always. Thanks!
on 17. February 2023, 16:51 by Raumplaner
Great puzzle.
on 17. February 2023, 07:32 by Mr.Menace
Vet nicely constructed puzzle. Everything clicks together in a really satisfying way!
Thanks for this gem
on 17. February 2023, 05:32 by mormagli
I kept making this puzzle harder on myself, looking for a long chain that would somehow disprove something... And then finally noticing a much more reasonable deduction. Very glad those chains never led to anything concrete, since this solve path is actually very straightforward (and hard to spot step-by-step)
on 16. February 2023, 22:55 by Myxo
Amazing puzzle. The logic really broke my brain, but it is fascinating how these constraints interact in surprising ways!
on 16. February 2023, 22:54 by wisty
Lovely puzzle! What a great between lines workout. From the elegant break-in to the fun tricks along the way all the way to the ending, this puzzle utilizes quad clues and geometry in a way I was never expecting! Great stuff :)
on 16. February 2023, 19:45 by grkles
Gorgeous :D
on 16. February 2023, 12:50 by Snookerfan
Very nice and hard! Thank you
on 15. February 2023, 21:18 by bansalsaab
Hard nut but doable. I had to use small bifurcations to remove candidates from circles when I couldn't figure out the logic but I always knew where to look for. Beautiful intricate logic.