ctc-catalogue: not_gas_puzzles: 94 rows where Constraints contains "Ambiguous Clues" and Solver contains "Mark" sorted by Id descending

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

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

94 rows where Constraints contains "Ambiguous Clues" and Solver contains "Mark" sorted by Id descending

descending

Id ▲	Puzzle Title	Date	Solver	Setter	Constraints	Video	Video Length	Video Length (Minutes)
7818	Dizzy Dancing	2025-11-11	Mark	Jacob Kadar	Ambiguous Clues, Anti-King, Diagonal, Doublers, Halvers, Killer, O/E	Unnecessary Mental Dizziness!	00:27:27	28 min
7762	The Archer's Dozen	2025-10-26	Mark	Bartok_the_Magnificent	Ambiguous Clues, German Whispers, O/E, Slow Thermo	This Sudoku = Mind: Blown!	00:47:28	48 min
7549	CTC Country Club	2025-08-27	Mark	Dali	Ambiguous Clues, Arrow, Consecutive, German Whispers, Incomplete Clues, Multitask Clues, Renban, Thermo	Which is More Fun? Golf, Sudoku ... or Both!	01:33:06	94 min
7471	Los Tres Amigos	2025-08-04	Mark	Blobz	Ambiguous Clues, Entropic Lines, Extra Regions, German Whispers, Killer, Pencilmarks, Region Sum Lines	How can we tell The Three Amigos apart?	00:28:35	29 min
7385	XV Inequality Sudoku	2025-07-10	Mark	Hyunmo Kang	Ambiguous Clues, Anti-XV, Inequality, XV	What does this Grid Marking even Mean?	00:46:58	47 min
7280	Treasury Island	2025-06-08	Mark	SUDOOOOOKUfan87	Ambiguous Clues, Killer, Nurikabe, XV	Can you Find Treasury Island?	00:45:53	46 min
7089	One of the Two	2025-04-18	Mark	oskode	Ambiguous Clues, Arrow, Between Lines, Diagonal, Double Arrow, German Whispers, Killer, Look-and-Say, Modular Lines, Palindrome, Region Sum Lines, Thermo	The Face of a Confused Person	01:07:05	68 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
7001	Sigma or Pi	2025-03-22	Mark	Sudokun	Ambiguous Clues, Killer, Multiplication	Does Pi Have this Mathematical Meaning?	00:37:25	38 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
6607	ABENNR	2024-11-23	Mark	FullDeck, Missing a Few Cards	Ambiguous Clues, Kropki, Nabner, O/E, Renban	The Lines that CONCEAL their IDENTITY!	00:42:40	43 min
6560	The Unfrayed Modified German Whisper Loop	2024-11-09	Mark	Kyle McCormick	Ambiguous Clues, German Whispers, Neighbour Sums	Be Unfrayed - Be Very Unfrayed	00:57:42	58 min
6401	Kill Or Quads	2024-09-23	Mark	Matt Tressel	Ambiguous Clues, Quadruple, Sums	The Choice you Don't Want to Have to Make	00:47:14	48 min
6219	Stolen Numerals King XV	2024-07-28	Mark	NurglesGift	Ambiguous Clues, Anti-King, Anti-XV, Kropki, XV	Don't Steal All my Sudoku Numbers!	00:41:30	42 min
6209	The Path Through Life	2024-07-25	Mark	Tobias	Ambiguous Clues, Cipher, Count, Snake Egg, XV	The Path Through Life	00:53:12	54 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
5995	P Is for Prime	2024-05-20	Mark	Chaos Is Inevitable	Ambiguous Clues, German Whispers, Primes, Sums	Mathematicians Will Not be Able to Cope with This!	00:37:46	38 min
5982	Is V Greater Than, Less Than, or Equal to 5?	2024-05-16	Mark	David Workman	Ambiguous Clues, Anti-Knight, Fog, Inequality, Killer, XV	I Get Confused when the Fog Clears if I Don't Deserve It!	00:45:10	46 min
5782	Segue Ursa	2024-03-15	Mark	Dorlir	Ambiguous Clues, Count, Difference, Region Sum Lines, Spiral Galaxies	One Galaxy to Rule them All	01:03:30	64 min
5648	All the Dots Are Brown	2024-02-03	Mark	gdc	Ambiguous Clues, Fog, Kropki	Brown Dots Don't BELONG in a Sudoku ...	00:24:54	25 min
5601	Pentominophibian	2024-01-20	Mark	Lil Gunga Jr	Ambiguous Clues, Dutch Whispers, Kropki, O/E, Palindrome, Pathway, Polyominoes, Renban, Sweeper	Great Snakes Alive!	00:58:09	59 min
5485	Killer Look-and-Say Islands	2023-12-16	Mark	Virtual	Ambiguous Clues, Killer, Look-and-Say, Multitask Clues	Islands of Confusion	00:47:31	48 min
5233	HI REN	2023-10-13	Mark	Sergey Crane	Ambiguous Clues, Arrow, German Whispers, Kropki, O/E	The Sick Boi, in Sudoku Form	00:29:14	30 min
4728	Austrian Heat	2023-06-11	Mark	Palfly Kampling	Ambiguous Clues, German Whispers, O/E, Thermo	How to Make a Thermometer go Green	00:28:49	29 min
4688	Arrow-Ace Sudoku	2023-06-01	Mark	Zachary Polansky	Ambiguous Clues, Arrow, Non-Consecutive, Sum Pairs	What Happens when a Young Genius tries Sudoku?	00:47:07	48 min
4411	Temperature Inversion	2023-03-24	Mark	Die Hard	Ambiguous Clues, Anti-King, Diagonal, Inequality, O/E, Sums, Thermo	Juggling with Thermometers	00:33:30	34 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
4129	De Stijl	2023-01-13	Mark	Nordy	Ambiguous Clues, Kropki	Neo-Plastic Sudoku	00:39:33	40 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
4019	Prime Time	2022-12-16	Mark	James Kopp	Ambiguous Clues, Killer, Primes, Region Sum Lines	Whenever it is now ... it's Prime Time!	00:48:31	49 min
3999	Kropki's Revenge	2022-12-11	Mark	metagloria	Ambiguous Clues, Kropki	Revenge of the Dots	00:28:27	29 min
3810	The Headless Hessian	2022-10-25	Mark	High Dudgeon	Ambiguous Clues, Anti-Knight, German Whispers, Renban, XV	Don't Have Dreams about this Sudoku	00:33:46	34 min
3579	City Planning	2022-08-29	Mark	Auul	Ambiguous Clues, Numbered Rooms, Skyscraper	What is an Ambiguous Clue?	00:37:24	38 min
3549	The Ugly Duckling	2022-08-22	Mark	staxioms	Ambiguous Clues, Consecutive, Diagonal, Killer, Quadruple	See what this Ugly Duckling becomes ...	00:33:43	34 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
3450	Your Ways Are Numbered	2022-07-28	Mark	Chilly	159, Ambiguous Clues, Disjoint Groups, Killer	How Many Roads Must a Man Walk Down?	00:51:11	52 min
3412	Sum Addition Required	2022-07-19	Mark	Go Easy!	Ambiguous Clues, Arrow, Killer, Little Killer, Thermo	Sum Kind of Fun	00:15:06	16 min
3406	Duel of the Fates	2022-07-17	Mark	Darth Paradox	Ambiguous Clues, Arrow, Dutch Whispers, Entropic Lines, German Whispers, Palindrome, Region Sum Lines, Renban	The Battle to End All Battles	00:57:00	57 min
3396	The Wizard's Cage	2022-07-15	Mark	Orvos	Ambiguous Clues, Consecutive, German Whispers, Killer	The AMAZING Wizard's Cage	00:35:14	36 min
3284	DAD	2022-06-19	Mark	PrimeWeasel	Ambiguous Clues, Difference, Extra Regions, Killer, Sums	The Daddy of All Sudokus	00:22:48	23 min
3198	Suicide Squad	2022-06-02	Mark	starwarigami	Ambiguous Clues, Killer	All the Cage Numbers are Given!	00:29:20	30 min
3194	Mystery Kropki Sudoku #2	2022-06-01	Mark	Can Erturan	Ambiguous Clues, Difference, Ratio, Sum Pairs	A Magical Mystery Sudoku Tour	00:35:56	36 min
3010	X-Digit-Sums	2022-04-20	Mark	Christian Scherer	Ambiguous Clues, Killer, X-Digit-Sums	A New Dimension Using 1s and 2s	00:28:19	29 min
2978	Reflection and Rotation	2022-04-12	Mark	Ore	Ambiguous Clues, Little Killer, Symmetry, Thermo	Reflections of a Mathematician	00:24:49	25 min
2937	Dynamic Dots	2022-04-02	Mark	Orhun Yüksel	Ambiguous Clues, Kropki, XV	One of the Most Dynamic Puzzles Ever	00:44:51	45 min
2895	Twenty-Four and What?	2022-03-22	Mark	AndreasV	Ambiguous Clues, Group Sums	What Is the Magic Number?	00:22:54	23 min
2769	Which Direction?	2022-02-18	Mark	Lisztes	Ambiguous Clues, Killer, Kropki, Little Killer	Having No Clue at all ...	00:52:53	53 min
2757	Three Hearts	2022-02-14	Mark	James Kopp	Ambiguous Clues, Arrow, Palindrome, Thermo	For the Love of Sudoku!	00:57:56	58 min
2634	hny 2022	2022-01-03	Mark	WombatBreath	Ambiguous Clues, Killer, Kropki	2022 - This is the year of Sudoku	00:22:26	23 min
2526	WL SP 2.27.22	2021-12-05	Mark	Andypip88	Ambiguous Clues, Killer, Little Killer, Thermo	The Ultimate Wedding Present!	00:21:02	22 min
2512	Killocator	2021-11-30	Mark	starwarigami	Ambiguous Clues, Killer	Wait, There are Still No Digits in this Sudoku?	00:55:25	56 min
2486	Hiding Little Killers	2021-11-23	Mark	Lisztes	Ambiguous Clues, Killer, Little Killer, Thermo	But ... Where are the Clues?	00:39:02	40 min
2383	Playing Ludo	2021-10-22	Mark	Svanemamma	Ambiguous Clues, Killer, Min/Max, O/E, Thermo	I Play ... this Game	00:29:12	30 min
2247	Whose Line Is It Anyways?	2021-09-08	Mark	Peter Veenis	Ambiguous Clues, German Whispers, Palindrome, Renban	How to Improvise a Solution to a Tough Problem	00:37:11	38 min
2236	The Box	2021-09-05	Mark	The Norinori Guy	Ambiguous Clues, Anti-Knight, Killer, Thermo	Think About the Outside of the Box	00:20:28	21 min
2203	The Witness	2021-08-25	Mark	Sktx	Ambiguous Clues, Kropki, Thermo	Sudoku Expert plays The Witness (Sudoku)	00:26:31	27 min
2198	The Robin Hood Incident	2021-08-23	Mark	RobK	Ambiguous Clues, Arrow	Magic at the Beginning ... and at the End	00:33:57	34 min
2121	Skylines	2021-07-28	Mark	Doug Jelen	Ambiguous Clues, Skyscraper	Colourful Skylines	00:37:23	38 min
2109	7ZAR	2021-07-24	Mark	Joseph Nehme	Ambiguous Clues, Killer	Algebra won't teach you how to find X here!	00:20:15	21 min
2085	Square Wheel	2021-07-16	Mark	Twototenth	Ambiguous Clues, Exponents, Killer, Little Killer	Fixing a Square Wheel	00:40:31	41 min
2043	Sudoku #2043	2021-07-02	Mark	Prasanna Seshadri	Ambiguous Clues, Arrow, Killer, Liar	One of these Clues ... is Fake News	00:17:22	18 min
2029	Broken Arrows	2021-06-27	Mark	RobK	Ambiguous Clues, Arrow	My Arrows are Broken!	00:23:20	24 min
1960	A Lying Stars Mystery	2021-05-29	Mark	Dylan Caruso	Ambiguous Clues, Killer, Liar	Better to be a Liar or a Killer?	00:34:54	35 min
1896	Ambiguity	2021-04-30	Mark	Thomas Occhipinti	Ambiguous Clues, Arrow, Thermo	The Devastating Difficulty of a Simple Idea	00:48:04	49 min
1885	TrioSumDiag	2021-04-25	Mark	Aad van de Wetering	Ambiguous Clues, Diagonal, Sums, Thermo	A piece from the Dutch master - is it a Masterpiece?	00:23:26	24 min
1806	Tetris at 3am	2021-03-18	Mark	melzzzy	Ambiguous Clues, Killer, Kropki	Getting Out of Bed for a Sudoku - Sync'ed	00:16:15	17 min
1799	Cryptic Triptych	2021-03-15	Mark	Elias Kar	Ambiguous Clues, Kropki, Thermo	This Problem is not Black and White	00:46:45	47 min
1764	Among Us	2021-02-27	Mark	meowzzz	Ambiguous Clues, Killer, Liar, Little Killer	The Sudoku solver Among Us	00:30:03	31 min
1758	Killer Cat Sudoku	2021-02-24	Mark	Stuart Emmerson	Ambiguous Clues, Killer, Thermo	A Cat Video - Sudoku Version	00:24:45	25 min
1694	Missing Bulbs	2021-01-25	Mark	Ben Needham	Ambiguous Clues, Thermo	How Many Minutes to put in a Bulb?	00:16:50	17 min
1690	Connect the Dits	2021-01-23	Mark	Dance1211, Undar_Beyond	Ambiguous Clues, Kropki	What Does this EVEN Mean?	00:28:03	29 min
1676	Killer Sudoku - Sums or Products	2021-01-16	Mark	Akash Jain	Ambiguous Clues, Killer	Simple Sudoku Arithmetic	00:30:54	31 min
1654	La Persistencia del Sudoku	2021-01-05	Mark	Phil Preen	Ambiguous Clues, Palindrome, Thermo	Artistic Genius	00:32:20	33 min
1637	Kropki’s Revenge	2020-12-28	Mark	Dolev Sacher	Ambiguous Clues, Kropki	Revenge of the Dots	00:29:29	30 min
1613	8x8 Mystery Sandwich	2020-12-17	Mark	Doug Jelen	Ambiguous Clues, Irregular, Sandwich, Thermo	Abnormal Sudoku Rules Apply	00:17:47	18 min
1609	Thermodiamonds	2020-12-15	Mark	J J Olsen	Ambiguous Clues, Slow Thermo, Sums	No Digits? This CAN'T work!	00:35:14	36 min
1570	SVS (296) - Flexible Sandwich Sudoku	2020-11-27	Mark	Richard Stolk	Ambiguous Clues, Sandwich	Back Yourself to Solve This	00:26:09	27 min
1547	Build-a-Sandwich Sudoku	2020-11-16	Mark	xoned	Ambiguous Clues, Sandwich	Make Your Own Puzzle	00:21:01	22 min
1489	A Knight's Mystery Sandwich	2020-10-19	Mark	Doug Jelen	Ambiguous Clues, Sandwich	What can X and Y be?	00:21:57	22 min
1464	SVS (250) - Sudoku X Is Still Alive	2020-10-07	Mark	Richard Stolk	Ambiguous Clues, Killer	X is Still Alive!	00:22:38	23 min
1449	Graham's Number - Little Killer Sudoku	2020-09-30	Mark	Johannes Quack	Ambiguous Clues, Little Killer	The Number that BLOWS minds	00:26:19	27 min
1443	Mystery Sandwich Sudoku	2020-09-27	Mark	Doug Jelen	Ambiguous Clues, Diagonal, Sandwich	Please Find My Sandwiches	00:27:03	28 min
1435	Swiss Flag Sudoku	2020-09-23	Mark	Rhys Minchin	Ambiguous Clues, Cipher, Killer, Sandwich, Sums	Fun With Flags, Sudoku Style	00:42:18	43 min
1433	Food Fight Sudoku	2020-09-22	Mark	shye	Ambiguous Clues, Battlefield, Sandwich	Food Fight!	00:37:24	38 min
1409	Uncertainty Thermo Sudoku	2020-09-11	Mark	Matt Cavnar-Johnson	Ambiguous Clues, Thermo	A Certain Uncertainty	00:35:23	36 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
1273	Little Killer Sudoku	2020-07-09	Mark	Philipp Huber	Ambiguous Clues, Inequality, Killer, Little Killer	Wait ... HOW many given digits?	00:23:57	24 min
1243	Magic Chess Sudoku	2020-06-25	Mark	Jamie Cavallo	Ambiguous Clues, Anti-King, Anti-Knight, Anti-Queen, Little Killer, Magic Square, Set Values	Magic Chess Sudoku	00:20:30	21 min
1156	SVS (095) - Different Differences	2020-05-16	Mark	Richard Stolk	Ambiguous Clues, Difference	The Dutch Master Again	00:43:16	44 min
1094	Little Killer "Oddballs" Sudoku	2020-04-20	Mark	Thomas Johnsen	Ambiguous Clues, Diagonal, Little Killer	Sudoku Oddballs	00:32:08	33 min
1042	Tic Tac Toe Sudoku	2020-03-29	Mark	Akash Doulani	Ambiguous Clues, O/E, Tic Tac Toe	Tic Tac Toe Sudoku - Find the winning lines!	00:11:58	12 min
1039	Uncertain Sudoku #5 - Sum or Average Arrow	2020-03-28	Mark	Sam Cappleman-Lynes	Ambiguous Clues, Arrow, Average Arrow	Sudoku Uncertainty - Are You Sure?	00:29:45	30 min
737	Sudoku #737	2019-07-22	Mark	Čedomir Milanović	Ambiguous Clues, Set Values, Sums	Greater or Sum Sudoku	00:09:58	10 min
677	Disguised Palindromes Sudoku	2019-06-01	Mark	Rakesh Rai	Ambiguous Clues, Palindrome	Disguised Palindromes - Aha!	00:15:33	16 min