Thermometer
Digits along a thermometer increase from the bulb end.
Arrows
Digits along an arrow sum to the digit in the corresponding circle. Digits can repeat on an arrow if allowed be the other rules.
Even
The cell with the gray square contains an even digit.
Link:
SudokuPad
Solution code: column 1
on 29. March 2026, 11:57 by Snookerfan
Great puzzle! Some hard steps, overall a smooth solve. Thanks
on 28. March 2026, 22:22 by Exigus
Excellent setting. Thanks!
on 28. March 2026, 21:52 by ademjaz
Very fun and enjoyable puzzle! Thanks
on 28. March 2026, 18:03 by antiknight
Great break-in and really nice breakthrough to end the puzzle!
on 28. March 2026, 17:46 by Qodec
This puzzle has a surprising amount of depth. Very nice!