Empty Chessboard
(Published on 10. June 2026, 06:30 by addie)
Antiknight and Antiking: Any two cells separated by a knight's or king’s move in chess cannot contain the same digit.
Ratio Kropki Dots: Digits separated by a black dot have a 2:1 ratio. Not all dots are necessary given.
XV: Digits separated by an X sum to 10, those separated by a V sum to 5. Not all Xs and Vs are necessarily given.
Solution code: Row 2
Comments
on 15. July 2026, 01:49 by paintspotinfez
Ended up having to do a bunch of bifurcation, but I'd REALLY be curious to know what the intended break-in is (in a hidden comment, so it doesn't spoil it for those who haven't completed it yet)
on 12. June 2026, 16:08 by superkinkel
This was absolutely brutal for me. While I know that the combined chess constraints force [spoiler], I am not able to explain/prove it myself, so decides to take that grind of narrowing down options to maybe learn. Took me an eternity and while I am glad, I made it, I'd still like to learn the proof.
on 11. June 2026, 00:07 by sparkymanu
I agree with BellBear, I think it's unfair to assume it's a bad puzzle because you can't find the break-in.
You are welcome to ask for help here or to search for miracle puzzles solves on Youtube to understand the solving path.
Anyway, nice puzzle @addie, thank you for submitting! I would actually rate it 2* on difficulty (assuming the solver being familiar with the ruleset)
on 10. June 2026, 15:43 by BellBear
@iEtsh: Just becauseyou didn't find a logical way to move forward, does not mean there ist none!
In fact, I found the break-in very satisfying, but from there on it was just filling in digits.
on 10. June 2026, 11:21 by slowbiex
tough break-in but very satisfying. thanks for setting
on 10. June 2026, 11:10 by iEtsh
A bad puzzle , has no logical steps to move forward, lots of bruteforces .. and still no way for progression
