Domino Effect
(Published on 12. April 2024, 15:49 by vitaminz)
RULES:
Normal Sudoku Rules Apply
Dots - Digits around black dots have a (1:2) ratio. Digits around white dots are consecutive. Digits around green dots differ by at least 5. Not all dots are given.
Unique Dominoes - Place non-overlapping dominoes (adjacent digit pairs) into every non-circled cell in the grid. No two dominoes may have the same digit pair. Two cells joined by a dot cannot form a domino. Like all non-circled cells, those with given digits are part of dominoes.
Solution code: Column 8
Comments
on 19. August 2024, 06:01 by cybers
great flow on this one - I didn't find scanning bad at all, being methodical with digits you have a lot of went well for me :) loved a certain x-wing that fixed some indeterminate domino borders at one point. thank you!
on 25. April 2024, 16:46 by Abdul the Killer
Some gorgeous interplay between the elements of the ruleset. Really enjoyable, thanks.
on 25. April 2024, 15:27 by ChinStrap
This was wonderful. Uses every bit of constraints and logic at every point.
on 19. April 2024, 12:05 by BHUNTER47
Beautiful construction. Easy to start, and then a lot of scanning near the end.
on 15. April 2024, 14:46 by Tony
Indeed a fun puzzle. Getting a little harder towards the end
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Thanks for persisting :) -VitaminZ
on 14. April 2024, 01:02 by sunevora
Wonderful puzzle, thanks so much! At ~20% I found a different approach to the logic, and then it was a very quick and smooth solve.
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Glad you enjoyed it! -VitaminZ
on 13. April 2024, 20:21 by Franjo
Must be a long time ago when I solved such a Sudominoku puzzle. This one is very good! And it was a great pleasure to solve. Thank you so much for setting and sharing.
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Thank you so much! I have never seen such a puzzle and if you happen to know the location of any I would love to try it. -VitaminZ
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The first domino sudoku was published by Ed Pegg, jr. in his online-series „Math Games“ of September 2005 featuring „Sudoku Variations“. You can find it via mathpuzzle.com.
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Thanks for this! I've coded it up in case anyone wants to try it (though be warned that it does imply some slight spoilers for my puzzle): https://sudokupad.app/sjhgrheew5
I haven't solved it yet so I can't attest to it's quality :P
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You may also try SVS no. 262 by Richard Stolk here on this site.
on 13. April 2024, 18:19 by Fizz
What an awesome and fun puzzle!
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I appreciate it! -VitaminZ
on 13. April 2024, 16:44 by Al Fresco
Cool idea for a puzzle and some nice deductions along the way :)
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Thank you! -VitaminZ
on 13. April 2024, 00:55 by ralphwaldo1
Very satisfying to solve, working out where the dominoes were was fun but some of the logic coming from the uniqueness was especially intriguing
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Thanks for trying it. I’m glad you enjoyed. -VitaminZ
on 12. April 2024, 21:04 by heliopolix
Quite clever. This puzzle is "top domino"!
It builds and builds, and then finally comes tumbling down.
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Thank you kindly! That feeling of tumbling is exactly what I was going for! -VitaminZ
on 12. April 2024, 19:30 by NRB
This made a horrible commute home very enjoyable…. Once I’d figured out a few things at the start it flowed very nicely and the final deduction was really enjoyable for me…. Thank you for making what would have been a horrible end to the week more enjoyable.
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A puzzle can't hope for better than this. Thank you :) - VitaminZ
on 12. April 2024, 19:21 by Abbott Abbott
The logic was very satisfying to uncover and overall it was a smooth and pleasant solve. Thank you for the puzzle!
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Thanks for saying so and for solving :) -VitaminZ
on 12. April 2024, 18:33 by juggler
Very cool mechanic, and one that must be very hard to set with! Came together really nicely.
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I was going to say "you have no idea" but actually you do :) - VitaminZ
on 12. April 2024, 15:58 by the_cogito
Lovely puzzle, lots of really fresh an interesting logic, well done!
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Thanks for testing and for the kind comment! -VitaminZ
