Back To The Future
(Published on 19. April 2025, 13:44 by .proxz14)
You can find the previous puzzles from "Movie Nights" below:
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Lore: (Rules Below)
Oh no! You've traveled back in time and accidentally separated the two arrows that were meant to be together. Before you return back to the future, you must reunite them. This puzzle has two parts which can only be solved in order. -----------------------------------------------------------------------------
Part 1 - Rules:
Normal Sudoku rules apply: Place the digits 1-9 in every row, column and 3x3 box once each.
Thermo: Digits along a thermometer strictly increase from the bulb.
Arrows: Digits along an arrow sum to the digit in that arrow's circle.
Dots: Dots divide the lines into segments with no digit repetitions. Draw a path from the blue arrow to the pink arrow by using all of the segments that sum to 10. Your path can't visit the same cell twice.
Diamonds: Digits inside of diamonds are to be copied to part 2 after the completion of this grid.
Play on SudokuPad
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Part 2 - Rules:
Normal Sudoku rules apply: Place the digits 1-9 in every row, column and 3x3 box once each.
Arrows: Digits along an arrow sum to the digit in that arrow's circle.
Diamonds: Digits inside of diamonds are to be copied from part 1.
Dots: Dots divide the lines into segments. A segment must either be in the past, or be in the future. Segments go straight at intersections unless there is a dot. The solver must determine which segment is which type.
Future: Digits along a segment of the future must get strictly higher in your direction of travel, which is shown by arrows for all lines on the grid.
Past: Each segment of the past must add up to the same value.
Path: You must start from the Blue Arrow, and connect it to the Pink Arrow by exclusively going through past segments on the grid. After reuniting the arrows, you must reach the DeLorean (car emoji) by exclusively traversing future segments. Your path can't go against the indicated direction of travel, and can't visit the same cell twice.
Play on SudokuPad
Solution code: Row 2 of Part 2
Comments
on 20. April 2025, 21:41 by CitrusGremlin
This is an absolutely wonderful interpretation of the film!! Thank you.
.proxz14's response: You're welcome :) Thanks for the idea!
on 20. April 2025, 12:11 by zeniko
Thanks for sharing this thematically fitting two-parter (which looks especially nice, if one path is colored in yellow).
I‘m not quite sure whether I‘ve solved it right, though. After struggling with part 2, I‘ve decided to reinterpret the rules about segments as „A segment MUST be either …“ which made the puzzle easier and solvable. Is that just accidental, should this conclusion follow from the puzzle or was that your original intention?
.proxz14's response: That interpretation is correct, a segment must be either past or future. Never both, never neither.
on 19. April 2025, 20:27 by ghaia
what a puzzle! or set of, to be precise. First one felt rather easy, but man did you torture me with that break-in for the second. aside from that, the ruleset is interesting and fun to use!!
.proxz14's response: What a comment! and about the torture part, I please oopsie daisies.
really cute puzzle, thank you for setting :)
on 19. April 2025, 15:57 by firespire
Rules different on Sudokupad for 1st puzzle, talks about going circle to circle. Is the start point the arrow TIP?
.proxz14's response: Yes, starting point is the tip of the arrow.
