This puzzle was set as a gift for DreamLibrarian via the secret santa event on the CtC-fan-discord. Thanks Flinty and ChinStrap for testing. Thanks DreamLibrarian for the permission to publish. Hope you enjoy!
Solution code: Row 9 left to right (9 digits)
on 5. February 2025, 20:41 by Rockon101000
Lovely puzzle with a very nice flow, and brought together two of my favorite less-common constraints.
on 28. January 2025, 20:39 by PinkNickels
Very tricky. Took me just under 24 minutes. Tough but fun!
on 19. January 2025, 21:09 by DreamLibrarian
I'm delighted that gdc's superb Santa gift is now out in the world. Enjoy!
on 15. January 2025, 10:01 by nunc
Thanks for sharing this beautiful puzzle. It would have been sad if it weren't out in the world.
on 14. January 2025, 15:36 by ViKingPrime
No matter how many indexing puzzles I do - and this is a very fine example - it always trips me up.
on 14. January 2025, 01:38 by joshandreassen
Such a lovely and smooth finish. Nearly had a panic at the end when I thought I had fallen into a deadly pattern... NOPE. Just me being an idiot and not seeing one of the quads... Should have known that qdc wouldn't do us dirty like that.
on 13. January 2025, 21:04 by abadx
Nice to see how cuadruples interact on an indirect way with indexing columns
on 13. January 2025, 18:11 by MattYDdraig
Very smooth interaction with the indexing and quads. Lots of fun.
on 13. January 2025, 18:01 by ChinStrap
It is an unexpectedly fun combination with nice logic throughout. Loved it!