Normal Sudoku rules.
Fog of war: fog covers the grid. Correctly placing a digit removes fog from the surrounding cells. No guessing is required.
Leap frog rule: frogs cover the grid. Adjacent digits across frogs leap in value and differ by exactly 4. All possible frogs are given.
FIREFOX USERS:
https://sudokupad.app/sko5fihf1n
An “F” is a frog.
Thank you StevenS for the comment.
VIDEO:
Before posting a comment about having to guess, please consider viewing my solution video:
https://youtu.be/ts7B1DCCrW8?si=5ad6HJ6rnXfWgE9f
PUZZLE LINK:
Lösungscode: Row 8 left to right
Heute, 09:27 Uhr von Flinty
Cute ending, brutal in a few places.
am 23. Mai 2026, 06:48 Uhr von TheJRMY
Very fun puzzle. I was going to rate 2*, but then that last step took me quite a while.
am 22. Mai 2026, 16:23 Uhr von firespire
The one with pictures works fine in my Firefox "Disable Emoji Replacement: Off" is the selected setting in my Sudokupad.
am 21. Mai 2026, 21:38 Uhr von Myfyr MJ
Very nice but difficult. That negative constraint is brutal! ????
Took me 79 minutes.
am 21. Mai 2026, 21:31 Uhr von TheJRMY
Very fun puzzle. I was going to rate 2*, but then that last step took me quite a while.
am 21. Mai 2026, 18:58 Uhr von Jrosas
Added Firefox version
am 21. Mai 2026, 17:36 Uhr von Martina
Truly great fun, thank you. Rating 3* ok for me because of that one cliff.
am 21. Mai 2026, 16:02 Uhr von CitrusGremlin
Lovely puzzle. The final disambiguation was incredibly clever.
am 21. Mai 2026, 07:20 Uhr von Justalilguy
Pretty nice, although the difficulty hike was bit sudden after a lot of easy steps
am 21. Mai 2026, 03:13 Uhr von MonsieurTRISTE
Frogtastic!
am 21. Mai 2026, 01:46 Uhr von StevenS
Something's wrong with Firefox: I don't see any frogs, although they show properly in Chrome.
Reply: I read that Safari emojis do not translate to Firefox. Here is a version with an F in place of every frog.
https://sudokupad.app/sko5fihf1n
| Schwierigkeit: | ![]() |
| Bewertung: | 85 % |
| Gelöst: | 41 mal |
| Beobachtet: | 0 mal |
| ID: | 000RVX |