ctc-catalogue: not_gas_puzzles: 71 rows where Constraints contains "X-Sums" sorted by Id descending

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

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

71 rows where Constraints contains "X-Sums" sorted by Id descending

descending

Id ▲	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	00:42:41	43 min
7569	Unique Under the Fog 6.0	2025-09-02	Simon	Visumation	Fog, German Whispers, Little Killer, Non-Repeat, Region Sum Lines, Renban, X-Sums	The New Sudoku Rule... It's Back!	00:46:53	47 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?	01:46:30	107 min
7319	It's All Basic Calculations	2025-06-20	Simon	oskode	Killer, Little Killer, Unknown Values, X-Sums	Is This Puzzle Is As Easy As ABC....?	00:52:00	52 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!	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!	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	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	00:24:24	25 min
6590	Off Piste	2024-11-18	Mark	Sergey Crane	Arrow, Incomplete Clues, X-Sums	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	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!	00:58:50	59 min
6149	21	2024-07-06	Mark	James Kopp	German Whispers, X-Sums	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	01:30:43	91 min
5994	165	2024-05-20	Simon	Leonhard Kohl-Lörting	Killer, Sums, X-Sums	A Mathematical Miracle	00:19:59	20 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!	00:25:02	26 min
5764	Brain Fog	2024-03-10	Simon	Scojo	Cipher, Fog, Killer, X-Sums	The Cure For Brain Fog	00:49:24	50 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	00:33:59	34 min
5298	Effervescence	2023-10-29	Simon	Oddlyeven	Counting Sets, Multitask Clues, X-Sums	Simply One Of The Best Sudokus You'll Ever Play	00:40:30	41 min
5262	Heisenberg	2023-10-21	Mark	randall	Arrow, Inequality, Multitask Clues, X-Sums	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	00:33:24	34 min
5113	Nabner in the Nebula	2023-09-15	Simon	gdc	Fog, Nabner, X-Sums	The Foggy Sudoku Nebula	01:06:16	67 min
4924	Seeing Double	2023-07-29	Mark	James Kopp	Little Killer, Multitask Clues, X-Sums	You are not Seeing Double Today	00:46:17	47 min
4847	Icing Disaster	2023-07-10	Simon	dumediat	Multitask Clues, Region Sum Lines, X-Sums	A Stunning New Sudoku Rule Combo	01:32:26	93 min
4770	Colorado 8	2023-06-22	Simon	Florian Wortmann	X-Sums, XV	One Of The Greatest Sudoku Clues!	00:35:01	36 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!	01:14:30	75 min
4430	I’ll Cry If I Want To	2023-03-29	Simon	FullDeck, Missing a Few Cards	Anti-Ratio, Fog, Modular Lines, X-Sums	The Sudoku Grid Is ALL Fog??!	01:58:29	119 min
4368	159 Bullseye	2023-03-13	Mark	Luda3	159, Renban, X-Sums	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 ...	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	01:56:45	117 min
4196	40 or 40?	2023-01-30	Mark	dumediat	Ambiguous Clues, Kropki, Sandwich, X-Sums	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	00:33:03	34 min
4048	Turning 40 This Year	2022-12-23	Mark	CTC	German Whispers, X-Sums	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?	01:31:42	92 min
3903	Subtle Advertisement	2022-11-18	Ben Taylor	sunnyjum	Arrow, Killer, Kropki, Little Killer, O/E, Palindrome, Quadruple, Thermo, X-Sums, XV	Who is This Guy, and What has he Done with Simon?	00:17:34	18 min
3895	Alien X-Sums	2022-11-16	Simon	Christoph Seeliger	Base, X-Sums	The Only Clue Is The Number 1000... How?!	00:57:44	58 min
3855	The Raven	2022-11-06	Simon	Aron Lidé	Cipher, Region Sum Lines, X-Sums	The Raven	00:43:32	44 min
3850	A Mathematical Phenomenon	2022-11-04	Mark	Xenonetix	Kropki, X-Sums	An Intrigiung Mathematical Phenomenon	01:11:52	72 min
3801	Kineticism	2022-10-22	Mark	jovi_al	X-Sums	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?	00:21:05	22 min
3701	Different, But Still Wrogn	2022-09-28	Simon	DiMono	Diagonal, Liar, Little Killer, Palindrome, Renban, Skyscraper, Thermo, X-Sums	It's All Gone WROGN - AGAIN!!!	02:08:51	129 min
3602	Reverse Sums	2022-09-04	Mark	kuraban	X-Sums	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	00:44:12	45 min
3220	X-ception	2022-06-06	Simon	Nahileon	Ambiguous Clues, Diagonal, X-Sums	The X. A New Miracle Sudoku	00:45:29	46 min
2950	X-Sums & Sandwiches	2022-04-05	Simon	Emre Kolotoğlu	Ambiguous Clues, X-Sums	The Ultimate Miracle Sudoku	01:27:40	88 min
2946	X-Sum Skyscrapers	2022-04-04	Mark	GarlicBredFries	Between Lines, Skyscraper, X-Sums	A Mind-Bending Sudoku Combination	00:40:57	41 min
2923	Deconstruction: X-Sums	2022-03-30	Simon	Jesper Josefsson	Deconstruction, X-Sums	The Sudoku Big Bang	01:20:38	81 min
2911	Snake Pit	2022-03-26	Simon	DiMono	Snake, X-Sums	Everything Is Right(n)	00:41:29	42 min
2737	Kropki X-Sums Sudoku	2022-02-07	Mark	Aron Lidé	Kropki, X-Sums	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	00:33:10	34 min
2654	X(mas)-Sums 2 (Odd-Even Coded) / Odd X-Sums	2022-01-11	Simon	Christoph Seeliger	Cipher, Parity, X-Sums	If You Think I'm Odd, Wait Until You See This!	00:57:40	58 min
2608	Xmas Sums With a Difference	2021-12-26	Mark	Phil Preen	Difference, Sums, X-Sums	Brilliant Secret Work by Santa	00:30:30	31 min
2592	Xmas-Sums	2021-12-21	Simon	Clover	X-Sums	The Most Popular Sudoku Setter In The World?	00:25:59	26 min
2177	X-Sums Sudoku	2021-08-16	Mark	Christoph Seeliger	X-Sums	A Favourite Sudoku Type	00:29:52	30 min
2058	Chaos Construction: X-Sums (9x9)	2021-07-07	Simon	Jesper Josefsson	Chaos Construction, X-Sums	Chaos Construction = Insane Sudoku	01:15:39	76 min
1797	Pi-Day X-Sums Sudoku	2021-03-14	Mark	Jonas Gleim	X-Sums	Wait ... Another Incredible Sudoku Discovery?	00:23:52	24 min
1729	When X-Sums Meet Killer	2021-02-11	Simon	Joseph Nehme	Incomplete Clues, Killer, X-Sums	Murder Mystery: The Sum Killer	00:39:53	40 min
1704	X-Sums Sudoku	2021-01-30	Simon	Sam Cappleman-Lynes	X-Sums	How To Solve A Blank Sudoku Grid!!!	00:40:35	41 min
1667	Chaotic Wrogn	2021-01-12	Simon	Undar_Beyond	Fortress, Killer, Kropki, Liar, Quadruple, Skyscraper, Thermo, X-Sums, XV	Cracking The Cryptic: The Second Movie	01:28:24	89 min
1623	X-Sum Tree	2020-12-21	Mark	Simon Trucchi	Set Values, Sums, X-Sums	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	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	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	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	00:39:15	40 min
1351	Liar X-Sums	2020-08-15	Mark	Jonas Gleim	Liar, Set Values, 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?	00:22:53	23 min
1315	Royal PicniX	2020-07-30	Simon	Alexander Rappa	Anti-King, Anti-Queen, Sandwich, X-Sums	Puzzles Like This Are Why We Love Sudoku	00:24:36	25 min
1284	Unknown Values	2020-07-15	Simon	shye	Ambiguous Clues, Difference, Sandwich, X-Sums	Jekyll and Hyde Sudoku	00:29:31	30 min
1155	Compounding the Co-Dependency	2020-05-16	Simon	Prasanna Seshadri	Ambiguous Clues, Arrow, Consecutive, Difference, Group Sums, Kropki, O/E, Serbian Frame, Set Values, Skyscraper, Thermo, X-Sums	The Most Complex Sudoku Ever	00:34:50	35 min
1045	Uncertain Sudoku #8 - Frame or X-Sums	2020-03-30	Simon	Sam Cappleman-Lynes	Ambiguous Clues, Frame, X-Sums	World-Class Sudoku Setter Creates A Monster	00:36:57	37 min
994	Sudoku #994	2020-02-27	Mark	Tom Collyer	X-Sums	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?	00:23:50	24 min