Unmovable Car (by Flinty & OlliWright)
(Published on 4. March 2025, 20:40 by Flinty)
Special Thanks
This puzzle was made for the weekly Scojo Discord prompt, with a simple instruction: Collab with someone that you've never created a puzzle with before, pick a constraint each, and set!
I went out and secured a collab with lunchtime Twitch legend OlliWright!
Thank you Olli :) On behalf of both of us, we really hope you enjoy this puzzle.
Initial Setter Difficulty: 2.5-3 out of 5
Normal sudoku rules apply.
Place the digits 1-9 once each in every row, column and 3x3 minigrid.
Slow Thermometers
Moving along any grey line from bulb to tip, digits may increase or stay the same, but must not decrease.
Index Lines
On an index line, the digit in the Nth cell along the line (starting from the diamond) indicates the position along the line where the digit N appears. Eg: 3214 would be a valid line; the 1st digit, 3, indicates that the 3rd digit is a 1, and so on.
To play this puzzle, please click here 'Play CTC'
Optional Hint.
There are some key cells that see a lot of an index line that they must appear on. R8C2 is one such example.
Puzzle Image:
Solution code: Digits from Row 9
Comments
on 5. March 2025, 21:18 by damo_89
That was fun
on 5. March 2025, 18:03 by palpot
Loved this puzzle! Very well designed with clever interactions between the two constraints.
on 5. March 2025, 16:47 by Franjo
Wonderful interaction between the two types of lines! Thank you very much for creating and sharing this gem.
on 5. March 2025, 16:19 by wuc
Great fun. Amazing how much information you can squeeze out of those index lines. Thx for sharing.
on 5. March 2025, 16:04 by meggen033
Very nice puzzle! Those slow thermos really don't give much. Very well set.
on 5. March 2025, 15:16 by Lorena
I was very impressed with this puzzle, it’s always fun to see established rules used in an innovative way.
on 5. March 2025, 09:35 by Snookerfan
Very nice! 2.5 difficulty is correct in my opinion. Thank you
on 5. March 2025, 03:20 by lootyloot
fun puzzle!
on 5. March 2025, 02:19 by sujoyku
What a wonderful puzzle! Thank you for creating this incredibly smooth construction, Olli and Flinty!
on 4. March 2025, 21:56 by goodcity
Lovely!
on 4. March 2025, 21:43 by ChinStrap
Excellent work gents. Loved the interactions here.
on 4. March 2025, 21:05 by fuxia
Very cute, I like especially the impact the index line from box 6 to 2 had on the thermo. Thank you for the puzzle!
