Normal sudoku rules apply. Cells with arrows pointing outward must contain digits greater than all orthogonal cells. Cells with arrows pointing inward must contain digits less than all orthogonal cells. Digits in a quadruple circle must appear in the surrounding cells. Digits along an arrow must sum to the digit in the large circle at its end. Digits in a cage must sum to the little number in the upper left, and may not repeat in the cage. Digits on a thermometer must strictly increase from the bulb end. Comments welcome!
Solution code: First row of puzzle, and fourth column of puzzle (read top to bottom). Enter as a string of 18 digits, no spaces.
on 7. February 2022, 22:23 by donk3y
I love all of your puzzles! Never stop constructing!
on 7. January 2022, 14:39 by Shearing
Really lovely puzzle. Was a joy to solve. Thanks a lot for sharing this one!
** Thanks so much!!! I'm very glad you are finding joy in the back catalog. :-)
on 16. December 2021, 20:09 by JR_pianoman
I'm amazing at how you get such great logic into a symmetrical and clean puzzle that's also easy to solve! Always a pleasure, PDN!
** And always a pleasure to read your kind comments! :-)
on 15. December 2021, 18:52 by Moses*
Sehr schöne Variante, diese GAS-Puzzles finde ich abends sehr entspannend.
Besten Dank an PDN
** Also gut zu hören. Danke schön Moses.
on 13. December 2021, 19:08 by titus2323
That was a lot of fun! I'm still new to the site, and it's nice to find complex variants that I can actually complete. Thank you.
** Thanks! I tend to set lots of puzzles with those qualities, so have a look at my back-catalogue. :-)
on 12. December 2021, 02:34 by obi
Very nice flow, loved the little quirk to solve the very last bit!
** Now you have got me curious. (It’s been a while since I have solved it!) :-)
on 11. December 2021, 19:12 by kapowchi
Great puzzle really enjoyed solving!
** I am glad I could bring a little joy into your world. :)
on 11. December 2021, 05:13 by TheCaretaker
Delightful little puzzle
** Thanks for the solve and kind feedback! :-)
on 11. December 2021, 01:45 by PDN777
Thanks to all the commenters. Super to know my efforts are well received. :-)
on 10. December 2021, 23:32 by Magnesium
Thank you for the fun puzzle, after a long day this was a pleasure to solve.
on 10. December 2021, 19:14 by gbrljt
Always a pleasure to solve a puzzle set by PDN. Highly recommend this one!!
on 10. December 2021, 17:22 by Chelo
Thank you again for this nice puzzle, I enjoyed it very much!..