Kitten's Got Claws (5x5 challenge)
(Published on 15. July 2022, 20:26 by Samish)
This is the first puzzle of a trilogy I made around common themes :
- 2. Jaguar's Paw (6x6)
- 3. Tiger's Jaw (8x8)
You can also check out my other puzzles here. Comments and ratings are very much appreciated, thank you !
Rules :
- Normal irregular sudoku rules apply : place 1-5 in each row, column, region.
- Digits along a thermometer must increase from the bulb.
Additionally, note that this puzzle does not require bifurcation or guessing of any kind, and the challenge is to solve it following a purely logical path (originally estimated 4/5 difficulty that way).I've included hints and explanations of my path in white text below the image. Highlight it to read !
Step 1 : You should be able to find an equivalence between 2 sets constrained by the corner thermos to find the 3 first digits.
Hint 2 : Where can the 5 go in column 3 ? Where can the 2 go in row 3 ?
Step 2 : This leads to rule out 4>5 from being the top left thermo and 2>3 from being the bottom right thermo.
Hint 3 : Use colours to highlight correspondance between some cells of the grid. How can it help find which thermo is which ?
Step 3 : It helps deduce r1c1 and r2c4 can't be the same digit as they see all colours together. Same applies to r1c5 and r4c4. Therefore, r2c4 is forced...
Hope it helps you enjoy this small challenge !
Solution code: Enter row 1 then column 5 (10 digits no space)
Comments
on 17. December 2023, 23:03 by wullemuus
What incredible interactions between the thermos and the irregular shape! Looking forward to the other two puzzles :)
on 29. October 2023, 14:01 by Yann
Simple incredible, the amount of interesting logic packed in here is unbelievable ! Fortunately, a cat's claws are retractable !
on 14. August 2022, 20:53 by Aaronomys
Wow! With a five by five grid and five very short thermos, you have managed to create a stunning puzzle with several beautiful logical ideas. Very well done! :D
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Thank you very much ! It means a lot coming from you :-) To be fair I must say I felt lucky to find this one. However it inspired me for the two others that I'm also very happy with, and that required a bit more work :D
on 14. August 2022, 02:59 by Samish
Trilogy update.
on 20. July 2022, 16:54 by PrimeWeasel
Very enjoyable! Slightly more difficult than 2 I'd say
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Thank you very much ! The difficulty rating is decidedly an object of debate amongst its solvers.
on 17. July 2022, 23:46 by filuta
cool, thanks!
on 16. July 2022, 03:25 by cdwg2000
Difficulty=2.5/5
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Well I guess it's a matter of one's definition of a "purely" logical path, but there seem to be a consensus for 4/5. Good job if you found it easily though !
on 15. July 2022, 21:54 by Samish
Title improvement (Thanks Kafka)
on 15. July 2022, 21:20 by Kafkapharnaum
Kitten's Got Claws! ;D
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It was an even better title !
