Hidden X-Sums
(Published on 4. July 2022, 20:13 by jwsinclair)
Normal sudoku rules apply.
Clues outside the grid are hidden X-sums, which give the sum of the first X cells in that direction, where X is the first digit in the row or column. But the actual sums are hiding in the killer cages inside the grid. The digits in each cage (read left to right or top to bottom) represent the two-digit X-sum for the row or column that contains both cage cells.
Digits in cells with a gray circle must be odd.
F-Puzzles | CtC
Solution code: row 2, row 7 (18 characters, no spaces)
Comments
on 15. July 2022, 10:47 by cahlroisse
This was extremely fun with very good logic flow. I never felt completely stuck, but a lot of digits felt like I had to work hard for them. Loved it.
on 6. July 2022, 17:56 by philb
Very nice, thanks. Definitely a 3* difficulty I'd say.
on 6. July 2022, 02:01 by cam
That was incredible! This is one of the best puzzles I've seen this year. Absolutely delightful :) Thanks!
on 5. July 2022, 23:08 by jwsinclair
Thanks, everyone, for the nice comments! I have some similar puzzles I'm planning to publish in the next week or two, so it's really encouraging to get such good feedback on this one.
on 5. July 2022, 17:56 by Franjo
Astonishing, wonderful - and not too hard. A perfect puzzle.
on 5. July 2022, 16:11 by Agent
Cool idea! I really enjoyed it.
on 5. July 2022, 14:47 by Steven R
Wonderful puzzle. Thanks!
on 5. July 2022, 14:21 by Snookerfan
Great puzzle, quite tricky actually!
on 5. July 2022, 12:32 by SirWoezel
That was a lot of fun. Great ruleset.
on 5. July 2022, 08:29 by Samson
Very nice puzzle. Probably closer to 3* than 4*.
The interaction of constrictions was beautiful and fluid. Thank you!
on 4. July 2022, 23:27 by Bankey
Very nice puzzle. Thanks, @ jwsinclair :)
on 4. July 2022, 22:16 by marcmees
Nice puzzle. thanks
on 4. July 2022, 21:59 by JayForty
Great puzzle! In its genre, one of the most enjoyable I've ever solved. Great setting! Each step/clue had something new to bring and it flowed really nicely. Very well done!
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Wow, thanks! Really glad you liked it.
on 4. July 2022, 20:13 by jwsinclair
Thanks for solving and rating! If you or someone you know might enjoy a weekly set of puzzles that are a bit easier than the ones here, but still engaging and challenging, check out Artisanal Sudoku. Primarily killer sudokus, often in combination with other rulesets.
https://artisanalsudoku.substack.com
