Logic Masters Deutschland e.V.

Up The Swamp

(Published on 15. September 2021, 15:52 by Xailran)

Normal Sudoku rules apply.

A river is a snake path of orthogonally connected cells starting next to a cage; the digit in that cage sets the length of the river. The number in the top-left corner of a cage sets the sum of the digits along the river. Rivers must decline in digit value from one direction to the other, starting from the cage. Rivers must not include cages. Rivers may touch themselves orthogonally, and rivers may overlap.

Summary: Rivers act as 'reverse thermometer arrows', with the controlling cage setting the length and total. Including the controlling cage, cages must not be in any river.

Rules Example

CtC App: 6x6 River Sudoku

Links to online solving tools

Solve Video

Thanks to BremSter for another great solve video! The video is in English. Solve video

I hope you enjoy the puzzle and I am eager to hear how you go!

Solution code: Row 2

Last changed on on 19. September 2021, 03:59

Solved by Steven R, kolot, marcmees, legstretch, bob, ArchonE-mobile, Bremster, Andersong, Darkgrumly, salty-horse, stpema, Jax-El, Nuclearsapling, BlueOrange, jez9999, Vebby, Droi, Crul, OGRussHood, awesomesauce, apwelho, saskia-daniela, GhTheOne
Full list

Comments

Last changed on 14. October 2021, 18:57

on 14. October 2021, 17:19 by Andersong
Came from the CTC comments - the CTC puzzle was a fun teaching puzzle, but this was even better! I hope they showcase more of your puzzles!

Response from Xailran: Thanks Andersong, I really appreciate the compliment!

on 19. September 2021, 03:59 by Xailran
Added Bremster's solve video

Difficulty:3
Rating:95 %
Solved:23 times
Observed:6 times
ID:0007LN

Puzzle variant Online solving tool Arithmetic puzzle Path puzzle

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