ctc-catalogue: not_gas_puzzles: 365 rows where Constraints contains "O/E" sorted by Id descending

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

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

365 rows where Constraints contains "O/E" sorted by Id descending

descending

Id ▲	Puzzle Title	Date	Solver	Setter	Constraints	Video	Video Length	Video Length (Minutes)
7887	Circuit Board	2025-11-30	Mark	It_depends	Modular Lines, O/E	Sudoku Circuit Training	00:51:06	52 min
7871	Distant Neighbors	2025-11-26	Simon	Nick Schneider	Consecutive, Count, Loop, Non-Consecutive, O/E, Primes, Projected Sums	A Rarely-Seen Sudoku Genius	01:25:28	86 min
7845	Rat: Chinese Zodiac	2025-11-19	Mark	Ratfinkz	Consecutive, Extra Regions, Hitpoints, Non-Repeat, O/E	Into the Rat Zone	00:44:02	45 min
7831	Balancing Regions	2025-11-15	Simon	Jonesy	Chaos Construction, Equal Sums, Killer, Kropki, O/E	The New Constructor Wowing The Sudoku World	00:59:07	60 min
7828	Braiding Sweetgrass	2025-11-14	Simon	Br1312te	Anti-Knight, Irregular, Little Killer, Modulo, Non-Consecutive, O/E	Is This Sudoku Easy Or Hard?!	00:48:31	49 min
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
7799	Aargh!	2025-11-06	Mark	Jaxar	Killer, O/E, Ratio, Region Sum Lines, Renban, Sequence, Thermo, XV	The Pirate Cat Comes to Play	00:33:11	34 min
7783	From Albany to Buffalo	2025-11-01	Mark	Thomas Prestopnik	Dutch Whispers, German Whispers, O/E, Ratio, Region Sum Lines	A Deep Dive into the Past	00:25:46	26 min
7782	Parity Patrol 101	2025-11-01	Simon	Jonesy	Binairo, Killer, O/E	The Beautiful Logic Of Connect 3!	00:33:54	34 min
7769	Visible Inclusions	2025-10-28	Mark	m1n3	Dutch Whispers, Killer, O/E, Ratio, Region Sum Lines, Thermo	A Tangible Benefit	00:20:22	21 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
7755	Bits and Arrows	2025-10-24	Simon	Jonesy	O/E, Sequence	One Computer Trick Solves This Sudoku!	00:49:09	50 min
7745	Creatures in the Dynamic Fog	2025-10-21	Simon	Br1312te	Adjacency, Anti-Knight, Extra Regions, Fog, Indexing, Min/Max, O/E, Sums	How Easy Is This Fog Sudoku?	00:52:12	53 min
7738	Ghosts in the Fog	2025-10-19	Simon	James Kopp	Anti-XV, Fog, O/E, Palindrome, Ratio	Ghosts In The Sudoku Fog	01:05:23	66 min
7695	Even Bishops	2025-10-06	Mark	Morphy	Anti-Queen, Killer, O/E, Palindrome	Even the Bishop Loves Sudoku!	00:40:00	40 min
7681	Hairgrips	2025-10-02	Mark	Malcolm Coleman	O/E, Ratio, Thermo	A Race to Consume Some Food Puzzles	00:26:56	27 min
7676	Happy Birthday, sujoyku!	2025-10-01	Simon	Community Creation	Count, Dutch Whispers, Killer, O/E, Region Sum Lines, Split Pea Lines	The One Where Friends Make You A Birthday Sudoku...	00:48:07	49 min
7659	Keep 'em Separated	2025-09-26	Simon	Jonesy	Equal Sums, O/E	You Only Need Two Colours To Solve This Sudoku!	00:28:22	29 min
7656	Queens Gambit	2025-09-25	Mark	Morphy	Chess, Killer, O/E	A New Sudoku Chess Variant	00:24:18	25 min
7639	Foggy Fireworks	2025-09-22	Mark	Chloé	Consecutive, Entropic Lines, Fog, German Whispers, O/E, Region Sum Lines, Renban, Thermo	Foggy Fireworks	00:26:05	27 min
7636	Squishdomefel	2025-09-21	Mark	Peter the Dog	German Whispers, Killer, O/E, Ratio, Renban, Squishdoku	My Brain gets Squished	01:13:05	74 min
7632	Hungry Rabbit in the Fog	2025-09-20	Simon	MCMCHammer	Arrow, Fog, Killer, Kropki, Min/Max, Modifier Cells, O/E, Palindrome, Pathway, Region Sum Lines, Thermo, XV	One Of The "Most Enjoyable" Fog Sudokus!	01:33:33	94 min
7618	Two Truths and a Different Truth	2025-09-16	Simon	Oddlyeven	Arrow, Doublers, Kropki, Liar, O/E, Renban, XV, Yin-Yang	"One Of The Finest Puzzles Ever Made"	01:42:01	103 min
7606	Threedoku	2025-09-12	Mark	James Kopp	Dutch Whispers, Neighbour Sums, O/E	They're ALL Threes in the Corners!	00:28:45	29 min
7587	Angel	2025-09-06	Mark	Community Creation, Thomas Occhipinti	Between Lines, Double Arrow, O/E	Is this an Angel amongst us?	01:02:40	63 min
7567	Nine Lines	2025-09-01	Mark	Buttons	Anti-Knight, Exponents, Indexing, O/E, Palindrome, Polarity, Primes	These Nine Lines are Enough to Unlock this Sudoku	01:25:53	86 min
7564	Flower Petals	2025-08-31	Mark	gregui	German Whispers, O/E, Ratio	Approachable Floral Sudoku!	00:21:35	22 min
7551	Once and for All	2025-08-28	Simon	99% Sneaky	Dutch Whispers, Kropki, Non-Repeat, O/E	The New Sudoku Rule That We LOVE!	00:40:38	41 min
7534	Against the Odds	2025-08-22	Mark	James Kopp	Count, German Whispers, O/E, Thermo	Solving Against the Odds	00:29:21	30 min
7513	Inchworms	2025-08-16	Simon	dumediat	German Whispers, O/E, Ratio, Renban, XV	Is This Sudoku Technique Just "Guessing"?!	00:58:40	59 min
7507	Twirled Mermaid Goes Forklift	2025-08-14	Mark	olima	Double Arrow, German Whispers, Little Killer, Modular Lines, Non-Repeat, O/E, Renban	It's My Party .. and I'll Solve if I Want to!	01:09:41	70 min
7504	Terrace	2025-08-13	Mark	Henk Nicolai	159, Dutch Flat Mates, O/E, XV	Fives are Strange Neighbours!	00:40:18	41 min
7503	Not All Who Wander Are Lost	2025-08-13	Simon	Allagem	N-Lines, O/E, Unknown Values	The 78-Cell Sudoku Line	01:19:03	80 min
7462	Pink Haze	2025-08-01	Mark	Buttons	Anti-Knight, Arrow, Between Lines, Diagonal, Extra Regions, O/E, Palindrome, Ratio	Solving Sudoku in the Pink	00:35:38	36 min
7457	Counting Constraints	2025-07-31	Simon	Erin Toler	Counting Sets, Dutch Whispers, Fog, German Whispers, Nabner, O/E, Ratio, Renban	Counting The Constraints! Fog Sudoku Magic	00:55:35	56 min
7455	BAD Values Snooker	2025-07-30	Mark	Zombie Hunter	Difference, German Whispers, Indexing, O/E	Can Zombies Even Play Snooker?	01:04:54	65 min
7432	Minefield Maneuvers	2025-07-24	Mark	gdc	6x6, Count, Extra Regions, O/E	Absolutely Cosmic Sudoku!	01:03:34	64 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
7408	Dippin' Dots	2025-07-17	Mark	Chris Napolitano	Consecutive, Difference, Entropy, Killer, O/E	Try Some Olive and Lavender in your Sudoku!	00:36:32	37 min
7392	Tough Odds	2025-07-12	Mark	Aron	Binairo, O/E	The Odds are Tough Indeed	00:46:37	47 min
7389	Scientist's Region Sum Guy	2025-07-11	Mark	LNOMISL	Anti-Ratio, O/E, Ratio, Region Sum Lines, XV	The Mad Scientist Returns ... Again!	00:30:38	31 min
7379	TDF Odd Mountain Stage	2025-07-08	Mark	palpot	Dutch Whispers, German Whispers, Modular Lines, O/E, Parity Lines	Sudoku at the Tour de France!	00:40:43	41 min
7366	Indexpennant Day	2025-07-04	Mark	rockratzero	Indexing, O/E, Region Sum Lines	Stars and Stripes in our Puzzle Today!	00:37:12	38 min
7310	Odd Patterns	2025-06-17	Mark	Fezzy	Anti-Knight, Count, Fog, O/E, Thermo	Some of these Patterns are really Quite Odd	01:01:20	62 min
7304	Breadcrumbs	2025-06-16	Simon	Belamis	Fog, Killer, Min/Max, Non-Repeat, O/E, Parity Lines, Ratio, Thermo, Zipper Lines	The Best New Ruleset In Sudoku	01:06:00	66 min
7299	Quincunx	2025-06-14	Mark	Freegerator	Arrow, Consecutive, Dutch Whispers, German Whispers, O/E, Sums	The Joys of the Quincunx	00:28:56	29 min
7291	Unique Under the Fog 3.0	2025-06-12	Simon	Visumation	Dutch Whispers, Fog, German Whispers, Killer, Modular Lines, Non-Repeat, O/E, Parity Lines, Ratio	Unique Under The Fog: Sudoku Class!	00:52:33	53 min
7274	Let's Go Camping!	2025-06-06	Mark	DhrAbel, Tey	Adjacency, Count, German Whispers, O/E, Sums	Sudoku on the Campsite	01:04:10	65 min
7273	Diamond Heist	2025-06-06	Simon	Marty Sears	Non-Repeat, O/E, Pathway, Sums	Your Mission: Solve This Sudoku In 45 Minutes...	00:34:08	35 min
7270	Foggy Unique Constraints	2025-06-05	Mark	Pychael	Fog, German Whispers, Kropki, Non-Repeat, O/E, Region Sum Lines, Renban, XV	Searching for Something Unique in the Fog	00:26:47	27 min
7260	Unique Under the Fog 5.0	2025-06-02	Simon	Visumation	Arrow, Diagonal, Extra Regions, Fog, German Whispers, N-Lines, Non-Repeat, O/E, Ratio, Renban	What's Under The Sudoku Fog?!	00:51:29	52 min
7188	Abatement	2025-05-14	Mark	dumediat	Anti-Diagonal, O/E, Quadruple	A Reputation Remains Intact	01:01:51	62 min
7187	Birdcage	2025-05-14	Simon	James Sinclair	Nabner, O/E, Ratio, Renban	Is That A New Sudoku Trick I See Before Me?	00:53:44	54 min
7185	The Squaretaker	2025-05-13	Mark	Haley Prochilo	Incomplete Clues, O/E, Region Sum Lines, Renban, Thermo	Star Trek Voyager - The Sudoku	00:27:25	28 min
7182	Don’t Even Touch	2025-05-12	Mark	Boh	Adjacency, German Whispers, O/E, Ratio	A Glorious Burst of Symmetry	00:39:32	40 min
7173	Modds and Mevens	2025-05-09	Mark	Scojo	Count, Little Killer, Modular Lines, O/E	Happy Birthday Scojo - Again!	00:46:04	47 min
7169	Odd Minesweeper	2025-05-08	Mark	Fezzy	Fog, Kropki, O/E, Sweeper	Foggy Minesweeper - this will have you shouting at the screen!	00:35:49	36 min
7162	Unique Under the Fog	2025-05-06	Simon	Visumation	Fog, German Whispers, Kropki, Non-Repeat, O/E, Parity Lines, Region Sum Lines, Renban	Unique Digits Under The Sudoku Fog!	00:59:21	60 min
7158	Clashing Chameleons	2025-05-05	Simon	the_cogito	Count, Neighbour Sums, O/E, Region Building	One Of The Hardest Sudokus Ever... Made Easier?!	01:23:36	84 min
7153	When It's Time To Parity We Will Parity Hard	2025-05-03	Mark	Calvinball, ChinStrap	Index Lines, O/E, Symmetry	We Like ... We Like to Parity	01:03:26	64 min
7146	Oil, Water, Kropki	2025-05-01	Mark	Blobz	Aquarium, Killer, O/E, Ratio	A Gorgeous Introduction to Oil & Water	00:25:34	26 min
7113	Magic Eggs	2025-04-21	Mark	James Kopp	German Whispers, Magic Square, O/E, Ratio, Renban	Magic Eggs for Easter	00:32:01	33 min
7085	CALLERLAB 50th	2025-04-17	Mark	Jeremy Butler	Cipher, Inequality, O/E	Call it Like you See it	00:26:11	27 min
7062	What Number Am I Thinking Of? (XVI)	2025-04-10	Mark	Br1312te	5x5, Anti-King, Irregular, Mean Mini, O/E, Ratio	What am I Thinking of at all?	01:00:10	61 min
7012	Counting on Quiet Knights	2025-03-26	Simon	Jolly Rogers	Counting Sets, Difference, Knight's Move, O/E	Count On Sudoku To Bring Joy To Your Nights!	00:32:21	33 min
7000	Quines	2025-03-22	Simon	Manus Hand	Arrow, O/E, Sums	The 5-Year Sudoku Challenge? Completed It!!	00:51:21	52 min
6994	Naughts and Crosses	2025-03-20	Mark	CraigFJ	Kropki, Miscellaneous, O/E, XV	Another Tic Tac Toe Showdown!	00:36:36	37 min
6991	Balancing in the Rain	2025-03-19	Mark	The Autistic Kantian	O/E, Ratio, Region Sum Lines	Sometimes Line Colours Don't Matter!	00:33:05	34 min
6966	What an Odd Sight	2025-03-11	Mark	damo_89	Count, O/E	It would be Odd to be Negative about this	00:25:16	26 min
6945	Slow Burn	2025-03-05	Simon	James Sinclair	Arrow, Killer, O/E	A Simple But Magnificent Sliver Of Sudoku Logic	00:35:34	36 min
6936	Parity Tic-Tac-Toe	2025-03-02	Simon	Marty Sears	Fog, Kropki, Miscellaneous, O/E	Drunken Sudoku Expert Plays Tic-Tac-Toe!!	00:53:22	54 min
6922	Wild Apples	2025-02-26	Mark	fractalminding	Non-Consecutive, O/E	A Wildly Confusing Negative Constraint!	00:21:21	22 min
6919	Sweeper Cell	2025-02-25	Mark	JoshLavig	Difference, Fog, O/E, Sweeper	A New Rule - a New Thought Process	00:30:59	31 min
6895	Tetrafolium	2025-02-18	Simon	Myxo	German Whispers, Killer, O/E, Thermo	One Of The Most Beautiful (And Difficult) Sudokus Ever	01:47:28	108 min
6891	Odds and Ends	2025-02-17	Bismuth, Simon	Ul-Rhymm	Killer, O/E, Renban	YouTubers Solve Sudoku With Simon: Episode 1: Bismuth	00:52:55	53 min
6872	Trickster	2025-02-11	Simon	James Sinclair	159, German Whispers, Nabner, O/E	99% Of Solvers Love This Puzzle!	00:54:34	55 min
6848	Rhubarb and Custard	2025-02-04	Simon	Henk Nicolai	Little Killer, O/E	A Jaw-Dropping Sudoku Masterpiece	00:48:45	49 min
6817	Po-Boy	2025-01-25	Simon	Sniglett, cornishjohn	Coral, Count, Little Killer, Multitask Clues, O/E, Sandwich	Hardly Anyone Has Solved This Puzzle. Why?!	01:03:03	64 min
6765	Thermo "Tornado"	2025-01-09	Mark	Sudokun	Diagonal, O/E, Thermo	From "That Guy" in Korea ...	00:48:07	49 min
6760	Calibration	2025-01-08	Simon	James Sinclair	Arrow, O/E, Renban, XV	Calibrate Your Sudoku Ability!	00:40:26	41 min
6757	Sort of Miraculous	2025-01-07	Simon	Andy Petersen	Anti-Knight, Indexing, O/E, Ratio, Sequence	The Revenge Of The Miracle Sudoku!	01:15:43	76 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
6746	Two to Tango	2025-01-03	Mark	Scott Strosahl	Binairo, Killer, O/E	It sometimes takes Two (Half-Hours) to Tango	01:01:08	62 min
6733	Drunken Fish	2024-12-30	Mark	Russian Singer	Anti-King, Fog, German Whispers, Killer, O/E, Ratio, Thermo	Like Shooting Fish in the Fog!	00:25:28	26 min
6723	RAT RUN 20: Gifted	2024-12-27	Simon	Marty Sears	Clone, Consecutive, Fog, O/E, Pathway, Portals, Ratio	The Cliffhanger Finale To Season 2: Sudoku Rat Run In The Fog	01:24:36	85 min
6708	The Polar(ity) Express	2024-12-22	Mark	Jaxar	Dutch Whispers, German Whispers, Killer, O/E, Region Sum Lines, Renban, Thermo, XV	Is That a Tree in the Corner?	00:27:58	28 min
6687	Fibo-Knight-i	2024-12-16	Mark	CraftyRaf	Anti-Knight, O/E, Sums	A Sequence of Great Deductions!	00:28:57	29 min
6635	Inception	2024-12-01	Mark	Sumanta Mukherjee	Between Lines, Killer, O/E, Thermo	Ringing in a New Idea	00:23:32	24 min
6622	One Line (?)	2024-11-27	Mark	Zorroish	Dutch Whispers, German Whispers, O/E, XV	One Line - Or Many More?	00:17:20	18 min
6614	Light Medallion	2024-11-25	Mark	Wei-Hwa Huang	O/E	Another Speedrun - all the way to the Finish Line	00:36:31	37 min
6610	That’s Even Better	2024-11-24	Mark	Mr.Menace	Kropki, Little Killer, O/E	When You're Going Through Hell .. Keep Going!	01:18:24	79 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
6604	The Most Beautiful Mathematical Equation	2024-11-22	Mark	Tobias Brixner	German Whispers, O/E, Parity Lines, Renban	Mathematics - at its MOST BEAUTIFUL	00:22:34	23 min
6599	Fog of Where?	2024-11-21	Simon	James Sinclair	Arrow, Fog, Killer, Kropki, O/E, XV	Announcing A BREAKTHROUGH In Fog Sudoku!	00:29:12	30 min
6597	Mini Golf	2024-11-20	Mark	Brinel	6x6, Consecutive, O/E, Quadruple, Renban, Whispers	Reduce the Game to Manageable Proportions - Bite-Size Sudoku	00:15:16	16 min
6574	Wessel Strijkstra	2024-11-13	Mark	Aron Lidé	6x6, Cipher, O/E, Sums	A Great Tribute from one Constructor to Another	00:43:46	44 min
6570	Original Sin	2024-11-12	Simon	Nordy	Count, Digit Restriction, Extra Regions, Killer, O/E, Pathway, Polarity	The Original Sudoku Sin	01:00:13	61 min
6557	See It, Say It, Sorted	2024-11-08	Mark	Michael Lefkowitz	Clone, Count, O/E, Sequence	Sudoku - Sorted!	00:56:27	57 min
6537	Boxed Out	2024-11-03	Mark	Kedad	Anti-Knight, Diagonal, German Whispers, Kropki, O/E, XV	Is there an Optical Illusion here? You Decide	00:53:02	54 min
6531	Complimentary Interconnected Forces	2024-11-01	Mark	David Workman	Killer, O/E, Thermo, Yin-Yang	Who's Laughing Now?	00:40:49	41 min