🔢 Sudoku Puzzles (Minus GAS ⛽️)

Sudoku puzzle-solving videos from CTC (excluding GAS puzzles).

Data source: Cracking the Cryptic Catalogue · About: View on GitHub

44 rows where Constraints contains "X-Sums" and Solver contains "Mark" sorted by Id descending

These facets timed out: Solver, Constraints

Setter 36

Id â–˛ Puzzle Title Date Solver Setter Constraints Video Video Length Video Length (Minutes)
7789 Twisted 2025-11-03 Mark ThePedallingPianist 4x4, 6x6, Linked Grids, X-Sums
This Really is Twisted
This Really is Twisted
 00:42:41 43 min
7421 Another World 2025-07-21 Mark Artham Anti-XV, Count, O/E, Repeat Digits, Sequence, X-Sums
What Might Sudoku Look Like in Another World?
What Might Sudoku Look Like in Another World?
 01:46:30 107 min
7075 Ambiguity 2025-04-14 Mark James Kopp Ambiguous Clues, Region Sum Lines, Renban, X-Sums
The Ambiguity of a Face in the Sudoku Grid!
The Ambiguity of a Face in the Sudoku Grid!
 00:36:17 37 min
6953 Sandwich Additives 2025-03-07 Mark DiMono Ambiguous Clues, Sandwich, X-Sums
You Have to Find your own Sandwiches!
You Have to Find your own Sandwiches!
 00:51:11 52 min
6781 X Marks the Sum 2025-01-14 Mark randall German Whispers, Kropki, Multitask Clues, Non-Repeat, X-Sums
These Lines Won't be Confined
These Lines Won't be Confined
 00:49:03 50 min
6752 Sum Odd Sandwiches (SOS) 2025-01-05 Mark Jodawo Fog, Multitask Clues, O/E, Sandwich, X-Sums
SOS - Help me Solve my Sudoku
SOS - Help me Solve my Sudoku
 00:24:24 25 min
6590 Off Piste 2024-11-18 Mark Sergey Crane Arrow, Incomplete Clues, X-Sums
Mark goes Off Piste
Mark goes Off Piste
 00:38:24 39 min
6437 Nightcap 2024-10-04 Mark Cristopher Moore 6x6, Little Killer, Multitask Clues, Sandwich, X-Sums
This is a Minor Miracle
This is a Minor Miracle
 00:10:31 11 min
6247 Negator XS 2024-08-06 Mark thoughtbyte Diagonal, Extra Regions, Negators, O/E, X-Sums
Nothing Negative to Say about this Puzzle!
Nothing Negative to Say about this Puzzle!
 00:58:50 59 min
6149 21 2024-07-06 Mark James Kopp German Whispers, X-Sums
Another Birthday for the Kopps?
Another Birthday for the Kopps?
 00:40:56 41 min
6080 Star-Crossed Sandwiches 2024-06-15 Mark Darth Paradox 10x10, Ambiguous Clues, Anti-Knight, Digit Restriction, Irregular, Sandwich, X-Sums
Star Wars Sandwiches
Star Wars Sandwiches
 01:30:43 91 min
5902 Little Killer-X Sums Hybrid Sudoku 2024-04-21 Mark Akash Doulani Little Killer, Multitask Clues, X-Sums
Not Just a Little Killer!
Not Just a Little Killer!
 00:25:02 26 min
5573 Harvest Lumber 2024-01-12 Mark rockratzero Killer, Multitask Clues, Region Sum Lines, Renban, Thermo, X-Sums
Putting your Back into Solving Sudoku
Putting your Back into Solving Sudoku
 00:33:59 34 min
5262 Heisenberg 2023-10-21 Mark randall Arrow, Inequality, Multitask Clues, X-Sums
The Paradox of Being Certain about Uncertainty
The Paradox of Being Certain about Uncertainty
 00:30:48 31 min
5174 Impossible? 2023-09-30 Mark damasosos92 0-8 Digits, 6x6, Equal Sums, Full Rank, Incomplete Clues, Killer, Multitask Clues, X-Sums
The Impossible Sudoku Project
The Impossible Sudoku Project
 00:33:24 34 min
4924 Seeing Double 2023-07-29 Mark James Kopp Little Killer, Multitask Clues, X-Sums
You are not Seeing Double Today
You are not Seeing Double Today
 00:46:17 47 min
4631 Everything Is Rihgt 2023-05-18 Mark, Simon DiMono Doppelganger, Fortress, Killer, Liar, Little Killer, Palindrome, Quadruple, Sandwich, Skyscraper, Thermo, X-Sums, XV
Simon & Mark Solve Sudoku Together!
Simon & Mark Solve Sudoku Together!
 01:14:30 75 min
4368 159 Bullseye 2023-03-13 Mark Luda3 159, Renban, X-Sums
Hitting the Target Dead Centre
Hitting the Target Dead Centre
 00:28:50 29 min
4348 Shifted X-Sums 2 2023-03-08 Mark Lizzy01 Indexing, X-Sums
First Find Your Sums ...
First Find Your Sums ...
 00:37:59 38 min
4304 Sudokoban 2023-02-24 Mark DiMono Indexing, Killer, Little Killer, Split Grid, X-Sums
The Puzzle That Will Haunt Mark
The Puzzle That Will Haunt Mark
 01:56:45 117 min
4196 40 or 40? 2023-01-30 Mark dumediat Ambiguous Clues, Kropki, Sandwich, X-Sums
Doomed to Turn 40?
Doomed to Turn 40?
 00:23:03 24 min
4064 Shortsighted X-Sums Sudoku 2022-12-27 Mark Sed Holaysan Ambiguous Clues, X-Sums
The Best Gifts Can't be Bought
The Best Gifts Can't be Bought
 00:33:03 34 min
4048 Turning 40 This Year 2022-12-23 Mark CTC German Whispers, X-Sums
Mark solves Simon
Mark solves Simon
 00:21:54 22 min
3954 X-Sums Killer Sudoku #2 2022-11-29 Mark Akash Jain Killer, Omitted Clues, X-Sums
But - Why aren't there ANY numbers in this sudoku at all?
But - Why aren't there ANY numbers in this sudoku at all?
 01:31:42 92 min
3850 A Mathematical Phenomenon 2022-11-04 Mark Xenonetix Kropki, X-Sums
An Intrigiung Mathematical Phenomenon
An Intrigiung Mathematical Phenomenon
 01:11:52 72 min
3801 Kineticism 2022-10-22 Mark jovi_al X-Sums
A Very Moving Puzzle
A Very Moving Puzzle
 00:18:40 19 min
3730 srelliK esreveR 2022-10-05 Mark kuraban Killer, X-Sums
The Reverse of Killer Sudoku?
The Reverse of Killer Sudoku?
 00:21:05 22 min
3602 Reverse Sums 2022-09-04 Mark kuraban X-Sums
Sudoku - From the Other Side
Sudoku - From the Other Side
 00:23:31 24 min
3470 Same but Different 2022-08-02 Mark Marvin Kannhauser Ambiguous Clues, Little Killer, Sandwich, X-Sums
Its the Same ... But Different
Its the Same ... But Different
 00:44:12 45 min
2946 X-Sum Skyscrapers 2022-04-04 Mark GarlicBredFries Between Lines, Skyscraper, X-Sums
A Mind-Bending Sudoku Combination
A Mind-Bending Sudoku Combination
 00:40:57 41 min
2737 Kropki X-Sums Sudoku 2022-02-07 Mark Aron Lidé Kropki, X-Sums
The Puzzle that Keeps on Being Brilliant
The Puzzle that Keeps on Being Brilliant
 01:05:05 66 min
2655 X(mas)-Sums 1 (Odd-Even Coded) / Even X-Sums 2022-01-11 Mark Christoph Seeliger Cipher, Parity, X-Sums
Not All Sudoku Videos are Odd
Not All Sudoku Videos are Odd
 00:33:10 34 min
2608 Xmas Sums With a Difference 2021-12-26 Mark Phil Preen Difference, Sums, X-Sums
Brilliant Secret Work by Santa
Brilliant Secret Work by Santa
 00:30:30 31 min
2177 X-Sums Sudoku 2021-08-16 Mark Christoph Seeliger X-Sums
A Favourite Sudoku Type
A Favourite Sudoku Type
 00:29:52 30 min
1797 Pi-Day X-Sums Sudoku 2021-03-14 Mark Jonas Gleim X-Sums
Wait ... Another Incredible Sudoku Discovery?
Wait ... Another Incredible Sudoku Discovery?
 00:23:52 24 min
1623 X-Sum Tree 2020-12-21 Mark Simon Trucchi Set Values, Sums, X-Sums
A Beautifully Decorated Tree
A Beautifully Decorated Tree
 00:33:33 34 min
1510 X-Sum Little Killer 2020-10-29 Mark Joseph Nehme Killer, Little Killer, Thermo, X-Sums
A new twist from a new place
A new twist from a new place
 00:25:56 26 min
1493 Nonconsecutive X-Sums 2020-10-21 Mark Alexander Rappa Non-Consecutive, X-Sums
A Miracle Puzzle from a Genius
A Miracle Puzzle from a Genius
 00:23:38 24 min
1424 Odd Pentominoes 2020-09-18 Mark Dying Flutchman O/E, Polyominoes, X-Sums
What A Great Idea for a Sudoku
What A Great Idea for a Sudoku
 00:30:22 31 min
1413 Multiple Role Sudoku 2020-09-13 Mark Daniel Galao Birkmann Anti-Knight, Sandwich, Skyscraper, Thermo, X-Sums
Multiple Role Sudoku
Multiple Role Sudoku
 00:39:15 40 min
1351 Liar X-Sums 2020-08-15 Mark Jonas Gleim Liar, Set Values, X-Sums
Liar X-Sums
Liar X-Sums
 00:25:15 26 min
1347 Hidden X-Sums & Sandwiches 2020-08-13 Mark Kaleb Fowler Ambiguous Clues, Sandwich, X-Sums
X-Sums or Sandwich?
X-Sums or Sandwich?
 00:22:53 23 min
994 Sudoku #994 2020-02-27 Mark Tom Collyer X-Sums
The BEST X-Sums Sudoku I've Ever Seen
The BEST X-Sums Sudoku I've Ever Seen
 00:21:14 22 min
806 Sudoku #806 2019-09-14 Mark Čedomir Milanović X-Sums
Can you figure out how to solve this puzzle?
Can you figure out how to solve this puzzle?
 00:23:50 24 min

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