Obstacle Course
(Published on 31. May 2026, 11:40 by Vythic)
Play on SudokuPad!
Normal sudoku rules apply.
Summit Lines: Digits along a blue line must be ascending or descending, with 1 and 9 reversing the ascension/descension. (eg if digits along a blue line are 2-4-5-7-9-8-5 in that order, the sequence is ascending until the 9 causes a descension).
Kropki Dots: Digits separated by a black dot have a 2:1 ratio. Digits separated by a white dot are consecutive.
German Whispers: Digits along a green line must have a difference of at least 5.
Dutch Whispers: Digits along an orange line must have a difference of at least 4.
Renban Lines: Digits along a pink line contain a consecutive set of digits in any order.
Similar puzzles: Hot Landing, Coursed Shapes, and Ascension Overload.
Normal sudoku rules apply.
Summit Lines: Digits along a blue line must be ascending or descending, with 1 and 9 reversing the ascension/descension. (eg if digits along a blue line are 2-4-5-7-9-8-5 in that order, the sequence is ascending until the 9 causes a descension).
Kropki Dots: Digits separated by a black dot have a 2:1 ratio. Digits separated by a white dot are consecutive.
German Whispers: Digits along a green line must have a difference of at least 5.
Dutch Whispers: Digits along an orange line must have a difference of at least 4.
Renban Lines: Digits along a pink line contain a consecutive set of digits in any order.
Similar puzzles: Hot Landing, Coursed Shapes, and Ascension Overload.
Solution code: Row 1
Solved by naggy, Jrosas, King_Pusher, jalebc, jordanza, Postnormal, Elliott810, sparkymanu, Mozart40, buzzard, GorgeousNicko, miranda_9, Sotiris6V, Klappa en ko, monononono, ManniMensen, macronate, Jayem, ... nsagatov1, clapslat, ebulku, azat, pepe74287, ItchySwan, Montikulum, Photyne, Houseofpraise, stafen, dp198879, Metal_Halide, etur, firespire, geronimo92, thegreatgazoo, timww572, mbumbee
Comments
on 2. June 2026, 23:22 by VitP
very easy, and runs into the problem that, around here, many people will down-vote a puzzle just because it's easy.
on 2. June 2026, 02:53 by Vythic
There are a number of things that can be forced early-mid game with the Summit Lines.
on 1. June 2026, 09:54 by abadx
The Summit lines constraint is very weak, so it is mainly only used at the last part of the game. My feeling is that this constraint is mainly for disambiguation purposes.
on 31. May 2026, 14:32 by Sotiris6V
Very nice puzzle but definiely a 1* difficulty
on 31. May 2026, 13:30 by sparkymanu
That was pretty fun but definetly 1* difficulty, close to GAS
