You've heard of the 3 dimensions of Sudoku: rows, columns and 3x3 boxes. Now we enter the 4th Dimension, and you must construct it! Good luck. P.S, Set at 2 stars but may be closer to 2.5. Thanks to CtC Community for testing :)
Puzzle: The 4th Dimension
Rules:
Normal 9x9 Sudoku rules apply.
Extra Region Construction: There are nine, 9-cell orthogonally connected extra regions in the grid you must construct, where each digit from 1-9 must appear in each extra region.
Arrows: The digits on a tail of an arrow must sum to the digit in the bulb. The tail of an arrow is in the same extra region across it's length but in a different extra region to it's bulb. The digit in the bulb indicates how many cells of it's extra region are in it's 3x3 box.
Lösungscode: Column 5, top to bottom, 9 digits no spaces:
am 9. Mai 2025, 11:22 Uhr von botteur
Really nice flow. Loved it
am 8. Mai 2025, 20:21 Uhr von Snookerfan
Brilliant puzzle! Thank you
am 6. Mai 2025, 22:36 Uhr von AngusWBA
Gorgeous puzzle! Thank you.
am 6. Mai 2025, 21:51 Uhr von AngusWBA
Gorgeous puzzle! Thank you.
am 3. Mai 2025, 17:34 Uhr von miss66
very interesting !
am 3. Mai 2025, 12:42 Uhr von Florian Wortmann
Lovely :-)
am 3. Mai 2025, 00:04 Uhr von juddimal
Very nice. Loved the ruleset.
am 1. Mai 2025, 21:14 Uhr von Christounet
Very good execution of the ruleset. Simple and elegant! Thanks :)
am 30. April 2025, 20:36 Uhr von koba1917
wow! That was super fun.
am 29. April 2025, 23:43 Uhr von Myxo
Brilliant puzzle!
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Thanks Myxo! :) -- Fenners
am 29. April 2025, 23:17 Uhr von polcat
Incredible puzzle! I really loved this. I found it harder than some of the commenters below - about 3.5*
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Thanks polcat. Setting a difficulty rating had me stumped to be honest, with many conflicting opinions. It has now settled at 3* which I think is reasonable -- Fenners
am 29. April 2025, 12:38 Uhr von Franjo
As this ruleset contains a new constraint (though similar to CC) I gave 3*. After I got my brain around the walk on the solving path was a great pleasure! Thank you very much for creating and sharing this lovely puzzle.
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Happy to hear you enjoyed this, thank you for solving! I was hesitant with the difficulty and originally put is as 3* then lowered it to 2* but with a note it’s more like 2.5 — Fenners
am 29. April 2025, 08:35 Uhr von Fenners
Thank you for all your comments! Glad you enjoyed the puzzle :)
am 29. April 2025, 01:40 Uhr von mathpesto
Very fun ruleset!
am 28. April 2025, 22:35 Uhr von AshBrown
Very nice thanks
am 28. April 2025, 21:50 Uhr von mihel111
Easy, but nice and fresh. Not too long for a construction. A pearl of 2*.
am 28. April 2025, 21:20 Uhr von welgen
Very nice, approachable region construction sudoku. Thanks for setting!
Schwierigkeit: | ![]() |
Bewertung: | 97 % |
Gelöst: | 162 mal |
Beobachtet: | 4 mal |
ID: | 000N42 |