Operation Arrows
(Published on 17. January 2021, 16:25 by EliasKar)
2) Each white circle uses one of the four mathematical operations on the two digits along its arrow(s) in some order and contains the result. Two such circles that see each other (aka are in the same row, column or 3x3 box) cannot use the same operation to calculate their result.
3) The cell with the grey circle must contain an odd number and the cell with the grey square must contain an even number.
Click here to play the puzzle in f-puzzles.com.
If you would like to play a much easier puzzle with the same ruleset as a warm-up, click here !
Solution code: The digits of row 5 (from left to right) followed by the digits of column 2 (from top to bottom). 18 digits total.
Comments
on 21. November 2023, 22:54 by Myxo
Wonderful puzzle! :)
on 12. November 2021, 13:24 by twobear
What a great puzzle! All the clues were set up perfectly. Thank you, EliasKar!
@Thank you for your comment, for your kind words and for trying out more of my puzzles! I really appreciate it and I hope you enjoy :)
on 23. February 2021, 08:25 by PrimeWeasel
Very nice! Needs more solves!
on 16. February 2021, 11:33 by Jesper
Great puzzle! Only became aware of it due to the easier version that was posted today.
@Thank you! That was the purpose of the easier one :) Also, judging from the time difference between the two solves, you did an amazing job at this one!
on 16. February 2021, 01:52 by EliasKar
Added link to an easier puzzle with the same ruleset
on 29. January 2021, 20:18 by Qodec
Incredible and inspiring puzzle!
on 27. January 2021, 15:15 by Undar_Beyond
Very original, challenging and tricky! Hope that more people can try this and admire the mix of algebra and geometry behind!
on 24. January 2021, 17:07 by EliasKar
"New puzzletype" tag added.
on 20. January 2021, 14:48 by EliasKar
I'm really proud of this puzzle and I do hope more people get to play it ! Thank you both @PixelPlucker @bigger
on 20. January 2021, 07:14 by bigger
Strange that so few people find this
wonderful puzzle
on 20. January 2021, 05:32 by PixelPlucker
Loved it. Very tricky and inventive ruleset!
on 18. January 2021, 14:13 by EliasKar
Tags Updated
