4x4
(Published on 3. January 2023, 12:34 by Abdul the Killer)
ANTI-KNIGHT: Cells a knight's move apart cannot contain the same digit.
Otherwise standard Sudoku rules apply.
Solution code: row 7 col 8
Comments
on 24. June 2023, 15:41 by puzzlepandit
This is good one. Nice rule set and nice flow.
---Thanks for the kind comment and the solve.---ATK
on 7. January 2023, 17:40 by Redmuunk
Brilliant puzzle, many false starts until you realise where the ones go.
on 7. January 2023, 00:19 by chain.reader
my favourite new ruleset, combined with my favourite all time ruleset? Sign me up!
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@chain.reader, it's nice to read that someone else is getting a kick out of these things! Thanks!
I believe you will find that the next one* with this ruleset is even more fun!
*currently scheduled for the 17th this inst, see you then.
-- ATK
on 5. January 2023, 12:24 by Boonzai
Really nice puzzle. Thank you!
on 5. January 2023, 09:07 by Noggin
Brilliant concept, great fun, TY.
I went wrong so many times in the beginning trying to get my head around it.
on 4. January 2023, 12:01 by Snaques
Well this was a nice surprise. It turned from a complete confusion to a very fun puzzle in a couple of tries.
You really need to read the rules carefully as I think I misinterpreted them like three times.
Good job on a very fun puzzle.
on 4. January 2023, 07:46 by Natalia_kyiv
What a fun constraint! Took some playing around to get a hang of it, but then it was very smooth and fun!
on 3. January 2023, 20:31 by sacklunch
Love these series of puzzles! Interesting constraint, and they flow well. Thanks for setting them!
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Thanks for the solve, @sacklunch, and thanks again for the kind comments. -- ATK
on 3. January 2023, 14:36 by ThibautV
After clearing the lenses of the solver, the puzzle flows completely naturally. Very strong constraints there, nicely put together!
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Glad you liked it, thanks for the solve. -- ATK
on 3. January 2023, 14:17 by Abdul the Killer
@ThibaultV
I think you've understood the rules, but misapplied them at some point. Particularly I don't see how you've placed all the 3s.
So for instance you could place 3s in (2,2), (1,6) and (8,5) which would be coherent (but not necessarily correct).
Perhaps it's worth underlining that because ALL the shaded cells are given there is a "negative" constraint.
on 3. January 2023, 13:38 by Chelo
I absolutely love this constraints, thank you @atk for setting and sharing it!..
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Thanks Chelo, your positive feedback is very much appreciated. -- ATK
