Project Africa
(Published on 6. April 2024, 09:32 by ThePedallingPianist)
Whilst the sudoku itself may not blow your mind, please consider sharing or even contributing to Russ' fundraising efforts.
Normal sudoku rules apply; i.e. place the digits 1-9 once each in every row, column and 3x3 box.
The route (red line) is a German Whisper; i.e. adjacent digits on the line must differ by at least 5.
On land, "hotter" cells contain higher digits; i.e. orange cells contain larger digits than orthogonally adjacent yellow cells, which contain larger digits than orthogonally adjacent green cells.
The four cages must be filled with four important numbers from Russ Cook's journey, read left to right. The solver must decide which number goes in which cage:
352 (days on mission);
19 (million steps, at least);
16 (countries/cells passed through);
? (total no. of "1s and 2s" on the route*)
(*"1s and 2s" is how Russ refers to left foot steps and right foot steps)
Solution code: Bottom row, left to right
Comments
on 27. April 2024, 12:02 by mnstrmisha
Oh this was beautiful! Thank you for this puzzle
on 7. April 2024, 07:28 by Joanie
Loved the last clue!
on 6. April 2024, 19:53 by Calvinball
Bang bang!
on 6. April 2024, 18:55 by ralphwaldo1
Tagline "You've traversed the entire continental land mass, now do the sudoku. Africa: how hard can it be?"
on 6. April 2024, 17:54 by Something Wellesian
@thepedallingpianist Thanks so much for adding the colourblind variant! I did manage to finish it before I saw your comment (using higher-contrast colours in SudokuPad), but I think the inequality sign variant will be very helpful for anyone else who runs into problems.
on 6. April 2024, 17:54 by lcy.30
Very inspiring story and nice rule set!
on 6. April 2024, 16:24 by ThePedallingPianist
Colourblind friendly version added
on 6. April 2024, 15:46 by Something Wellesian
@Philologos Thanks! I didn’t know that worked with cells I hadn’t coloured myself!
on 6. April 2024, 15:02 by Philologos
@Something Wellesian I am not sure this is sufficient, but on Sudokupad, if you click on a green cell, all green cells will be highlighted. Same for the yellow ones.
on 6. April 2024, 12:58 by Something Wellesian
I don’t suppose there’s a possibility of a colourblind-friendly variant of this? The green and yellow are very similar to my eyes.
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TPP: Thank you for the suggestion and apologies for not thinking of this myself! It sounds like you've found a solution by double-clicking colours, but I've also added a link to a colourblind friendly version with inequalities if this is helpful. :)
on 6. April 2024, 12:03 by anyeyeball
Very nice, well-set puzzle. More importantly, thanks for bringing this incredible feat and Russ Cook's worthwhile charities to our attention.
