🔢 Sudoku Puzzles (Minus GAS ⛽️)

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

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

109 rows where Constraints contains "Ratio" and Solver contains "Mark" sorted by Id descending

Solver 1

  • Mark · 109 ✖

Setter 92

Constraints 81

Id â–˛ Puzzle Title Date Solver Setter Constraints Video Video Length Video Length (Minutes)
7861 (+5)-Yang 2025-11-23 Mark SennyK Fog, Inequality, Modifier Cells, Ratio, Region Sum Lines, Renban, Yin-Yang
Fake Values in the Foggy Sudoku
Fake Values in the Foggy Sudoku
 00:47:30 48 min
7858 Fog of War Rectangle 2025-11-22 Mark Chip Sounder Fog, German Whispers, Killer, Ratio, Renban, Sandwich
You Can Make an Approach in this Fog ...
You Can Make an Approach in this Fog ...
 00:27:58 28 min
7848 X Marks the ???? 2025-11-20 Mark Molly Boodey Anti-Ratio, Ratio, Renban, XV
What Even is the Question?
What Even is the Question?
 00:35:59 36 min
7832 Artemis 2025-11-15 Mark Merdock Anti-Knight, Ratio, Region Sum Lines, Renban
A Puzzle for the Greek Gods
A Puzzle for the Greek Gods
 01:23:33 84 min
7821 Escape the Foggy Liar 2025-11-12 Mark PhoenixAki Arrow, Fog, German Whispers, Killer, Liar, Ratio, Thermo, XV
Sudoku Lines that Lie!
Sudoku Lines that Lie!
 00:41:21 42 min
7814 Hook or Crook 2025-11-10 Mark Sotehr Anti-Diagonal, Entropic Lines, Modular Lines, Ratio
Getting to the end by Hook or by Crook ...
Getting to the end by Hook or by Crook ...
 01:04:19 65 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
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
A Deep Dive into the Past
 00:25:46 26 min
7775 ??? 2025-10-30 Mark Molly Boodey Arrow, German Whispers, Killer, Quadruple, Ratio, Thermo
Questioning the very fundamentals of Sudoku?
Questioning the very fundamentals of Sudoku?
 00:26:08 27 min
7769 Visible Inclusions 2025-10-28 Mark m1n3 Dutch Whispers, Killer, O/E, Ratio, Region Sum Lines, Thermo
A Tangible Benefit
A Tangible Benefit
 00:20:22 21 min
7749 Double Entendre 2025-10-22 Mark James Sinclair Arrow, Doublers, Extra Regions, German Whispers, Killer, Ratio, Region Sum Lines, Renban
But ... These Lines Are Impossible!
But ... These Lines Are Impossible!
 00:38:42 39 min
7681 Hairgrips 2025-10-02 Mark Malcolm Coleman O/E, Ratio, Thermo
A Race to Consume Some Food Puzzles
A Race to Consume Some Food Puzzles
 00:26:56 27 min
7636 Squishdomefel 2025-09-21 Mark Peter the Dog German Whispers, Killer, O/E, Ratio, Renban, Squishdoku
My Brain gets Squished
My Brain gets Squished
 01:13:05 74 min
7602 Double the Fun 2025-09-11 Mark Lithium-Ion Diagonal, Primes, Ratio, Sums, Sweeper
Double the Length of our normal Fun!
Double the Length of our normal Fun!
 01:28:04 89 min
7599 Yin Yang Dominoes 2025-09-10 Mark PuzzleTank Killer, Ratio, Yin-Yang
How Approachable can such a Puzzle be?
How Approachable can such a Puzzle be?
 00:24:58 25 min
7593 Kurtosis 2025-09-08 Mark Michael Lefkowitz Incomplete Clues, Ratio, Split Grid, Thermo
A Somewhat Uneven Distribution
A Somewhat Uneven Distribution
 00:50:35 51 min
7564 Flower Petals 2025-08-31 Mark gregui German Whispers, O/E, Ratio
Approachable Floral Sudoku!
Approachable Floral Sudoku!
 00:21:35 22 min
7560 Queens 2025-08-30 Mark Bartok_the_Magnificent 6x6, Anti-Kropki, Irregular, Ratio
A Daily Diet of Three Puzzles!
A Daily Diet of Three Puzzles!
 00:56:37 57 min
7556 Happy Birthday Finnegan! 2025-08-29 Mark Radiantsongbird German Whispers, Quadruple, Ratio, Region Sum Lines
The Dog Days are Here
The Dog Days are Here
 00:21:19 22 min
7530 Mad Dogs and English Names 2025-08-21 Mark David Rutten Anti-Ratio, Killer, Miscellaneous, Ratio
You don't have to be Mad to do Sudoku ...
You don't have to be Mad to do Sudoku ...
 00:18:11 19 min
7517 Ridden Hopes? 2025-08-17 Mark Chloé Diagonal, German Whispers, Killer, Ratio
Riding to Destruction ...
Riding to Destruction ...
 01:07:23 68 min
7514 8/9/1990 2025-08-16 Mark shady moon Ratio, Region Sum Lines, Sums
Putting your Heart and Soul into a Sudoku
Putting your Heart and Soul into a Sudoku
 00:42:29 43 min
7501 Mind the Dot 2025-08-12 Mark Kaktuslav Ratio, Region Sum Lines
Mind the Dot. There's only One ...
Mind the Dot. There's only One ...
 00:55:10 56 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
Solving Sudoku in the Pink
 00:35:38 36 min
7427 Krazy Kropki 2025-07-23 Mark Dave Brenn Consecutive, Incomplete Clues, Ratio
A New Role for the Black Dots ...
A New Role for the Black Dots ...
 00:33:59 34 min
7402 Let’s See Where This Goes 2025-07-15 Mark Jupiter's Puzzlebox 8x8, Difference, Irregular, Little Killer, Mean Mini, Ratio
I am trying to avoid mistakes - honest!
I am trying to avoid mistakes - honest!
 00:50:29 51 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!
The Mad Scientist Returns ... Again!
 00:30:38 31 min
7382 XY-Cages 2025-07-09 Mark Philipp Blume Non-Repeat, Ratio, XY-Differences
A Mind Bending Variation on a Sudoku Rule
A Mind Bending Variation on a Sudoku Rule
 00:42:17 43 min
7356 My First 9x9 2025-07-01 Mark Chip Sounder Arrow, Clone, Killer, Little Killer, Ratio, Thermo
Not Exactly a Sudoku Debut
Not Exactly a Sudoku Debut
 00:37:06 38 min
7283 Feeding Friendsy 2025-06-09 Mark sujoyku Difference, Extra Regions, Pathway, Ratio, Split Pea Lines, XV
Croakz the Frog plays Sudoku!
Croakz the Frog plays Sudoku!
 00:50:06 51 min
7217 Triple Point 2025-05-20 Mark shady moon Non-Repeat, Ratio, Sequence
No Repeats - By Order!
No Repeats - By Order!
 01:31:57 92 min
7214 In Betwixt 2025-05-19 Mark BremSter Between Lines, Fog, Ratio
Getting Sneaky in the Fog!
Getting Sneaky in the Fog!
 00:36:15 37 min
7205 What Number Am I Thinking Of? (<3) 2025-05-16 Mark Br1312te 5x5, Irregular, Mean Mini, Ratio, Slow Thermo
5x5 sudoku, but ... What Numbers do we Need?
5x5 sudoku, but ... What Numbers do we Need?
 00:25:17 26 min
7182 Don’t Even Touch 2025-05-12 Mark Boh Adjacency, German Whispers, O/E, Ratio
A Glorious Burst of Symmetry
A Glorious Burst of Symmetry
 00:39:32 40 min
7159 Foggy “Pair”-rows 2025-05-05 Mark Visumation Count, Deconstruction, Fog, Ratio, Sums
Construction in the Fog!
Construction in the Fog!
 01:25:05 86 min
7146 Oil, Water, Kropki 2025-05-01 Mark Blobz Aquarium, Killer, O/E, Ratio
A Gorgeous Introduction to Oil & Water
A Gorgeous Introduction to Oil & Water
 00:25:34 26 min
7123 Different Delights 2025-04-24 Mark ThePedallingPianist Difference, Fog, Non-Repeat, Ratio, XV
Many Foggy Returns of the Day!
Many Foggy Returns of the Day!
 00:43:27 44 min
7113 Magic Eggs 2025-04-21 Mark James Kopp German Whispers, Magic Square, O/E, Ratio, Renban
Magic Eggs for Easter
Magic Eggs for Easter
 00:32:01 33 min
7079 There’s a 4 in the Corner! 2025-04-15 Mark Md88keys Dutch Whispers, German Whispers, Ratio, Region Sum Lines, Renban
That's 4 in the Corner!
That's 4 in the Corner!
 00:33:01 34 min
7066 Near Symmetry 2025-04-11 Mark [Anonymous] Killer, Quadruple, Ratio
Another Anonymous Sudoku Star
Another Anonymous Sudoku Star
 00:33:30 34 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?
What am I Thinking of at all?
 01:00:10 61 min
7036 Binary Trees 2025-04-02 Mark Azvaril Anti-Ratio, Extra Regions, Min/Max, Ratio
Family Trees can be Puzzling!
Family Trees can be Puzzling!
 00:47:26 48 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!
Sometimes Line Colours Don't Matter!
 00:33:05 34 min
6982 Lizard Babies Grow So Fast... 2025-03-16 Mark olima German Whispers, Ratio, Region Sum Lines, Renban
Stuck for Ages at a Simple Point
Stuck for Ages at a Simple Point
 00:52:30 53 min
6902 Kropki Arrow Sandwich 2025-02-20 Mark RockyRoer Difference, Multitask Clues, Ratio, Sandwich
Math like you've Never Tried Before
Math like you've Never Tried Before
 00:52:13 53 min
6886 Less Than Three 2025-02-15 Mark AnalyticalNinja Difference, Ratio
I HEART Variant Sudoku!
I HEART Variant Sudoku!
 00:51:28 52 min
6866 Echolocation 2025-02-09 Mark Erin Toler Ratio, Sequence, XV
An Echo of Tomorrow's Extra Bonus Video
An Echo of Tomorrow's Extra Bonus Video
 00:45:59 46 min
6860 Euler’s Constant 2025-02-07 Mark James Kopp Anti-XV, German Whispers, Ratio
Never mind Pi-Day! Today is ... e-Day!
Never mind Pi-Day! Today is ... e-Day!
 00:29:52 30 min
6849 Add On 2025-02-04 Mark James Kopp Extra Regions, Modifier Cells, Ratio, Region Sum Lines
It Just Keeps Adding up ...
It Just Keeps Adding up ...
 00:29:53 30 min
6837 No Petting! 2025-01-31 Mark TheAsylm Japanese Sums, Liar, Little Killer, Ratio
What makes Sudoku MORE Fun? A Picture at the End!
What makes Sudoku MORE Fun? A Picture at the End!
 00:54:14 55 min
6794 Triple Double 2025-01-18 Mark Jaxar Consecutive, Fog, Incomplete Clues, Ratio
An Extraordinary Sudoku Feat - Achieved
An Extraordinary Sudoku Feat - Achieved
 00:46:51 47 min
6758 Sprinkles Ice Cream 2025-01-07 Mark Frosty German Whispers, Killer, Ratio, Renban, Same Difference Lines, XV
A Deliciously Sweet Sudoku Treat
A Deliciously Sweet Sudoku Treat
 00:23:28 24 min
6755 Ho Ho Ho 2025-01-06 Mark James Kopp Ratio, Region Sum Lines, Whispers
Have an Epiphany with CtC!
Have an Epiphany with CtC!
 00:45:45 46 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!
Like Shooting Fish in the Fog!
 00:25:28 26 min
6717 Sudoquartet 2024-12-25 Mark Wypman Linked Grids, Palindrome, Ratio, Region Sum Lines
A Mammoth Monstrosity for Christmas Day
A Mammoth Monstrosity for Christmas Day
 01:03:32 64 min
6698 Differences Count - part 3 2024-12-19 Mark Marty Sears, sujoyku Counting Differences, Ratio
The Evolution of a Great Puzzle Idea
The Evolution of a Great Puzzle Idea
 00:40:28 41 min
6697 Differences Count - part 2 2024-12-19 Mark Marty Sears, sujoyku 6x6, Counting Differences, Ratio
The Evolution of a Great Puzzle Idea
The Evolution of a Great Puzzle Idea
 00:40:28 41 min
6696 Differences Count - part 1 2024-12-19 Mark Marty Sears, sujoyku 4x4, Counting Differences, Ratio
The Evolution of a Great Puzzle Idea
The Evolution of a Great Puzzle Idea
 00:40:28 41 min
6673 Fair and Square 2024-12-12 Mark James Kopp Dutch Whispers, Fog, Ratio
Seeking Squares in the Fog
Seeking Squares in the Fog
 00:29:20 30 min
6594 Humble Pi 2024-11-19 Mark James Kopp Little Killer, Non-Consecutive, Ratio
Have a Proper Slice of Humble Pi - Brilliantly Constructed Sudoku
Have a Proper Slice of Humble Pi - Brilliantly Constructed Sudoku
 00:29:50 30 min
6587 You Know How I Roll 2024-11-17 Mark arctan Fog, Ratio, XV
Approachable Fog of War Sudoku!
Approachable Fog of War Sudoku!
 00:20:28 21 min
6568 Lobster Dinner 2024-11-11 Mark Awedish German Whispers, Modulo, Ratio, Sums
The Perfection of Sudoku Art
The Perfection of Sudoku Art
 00:36:57 37 min
6553 Out of Order 2024-11-07 Mark blackjackfitz Ratio, Renban
The Youngest Ever Fan of our Channel?
The Youngest Ever Fan of our Channel?
 00:28:30 29 min
6546 Between the Edges 2024-11-05 Mark Jodawo Inequality, Ratio
A Special Day - for Someone Somewhere
A Special Day - for Someone Somewhere
 00:46:53 47 min
6463 Pea Soup 2024-10-12 Mark Oddlyeven Fog, Ratio, Split Pea Lines
No Soup for You!
No Soup for You!
 00:30:06 31 min
6449 Foes Eternal 2024-10-08 Mark Panthera, TheAsylm Fog, Japanese Sums, Linked Grids, Ratio
A Great Puzzle Pair
A Great Puzzle Pair
 00:54:38 55 min
6291 True Blue 2024-08-20 Mark James Kopp Anti-Ratio, Ratio, Region Sum Lines
True Blue, like a Kangaroo?
True Blue, like a Kangaroo?
 00:34:40 35 min
6282 Weird Bug 2024-08-17 Mark Jay Dyer Ratio, Renban
Getting to Grips with a Bug
Getting to Grips with a Bug
 00:31:01 32 min
6263 Sir Bri Sudoku 2024-08-11 Mark olima German Whispers, Ratio, Renban
Brian May - the Unexpected Tribute!
Brian May - the Unexpected Tribute!
 00:29:32 30 min
6181 Black Mamba 2024-07-16 Mark Lithium-Ion Consecutive, Indexing, Pathway, Ratio
And now, Snaking its way Through our Grid ... a Black Mamba
And now, Snaking its way Through our Grid ... a Black Mamba
 00:40:18 41 min
6167 Take More U-Turns 2024-07-12 Mark Black_Doom Average Arrow, Entropic Lines, N-Lines, Ratio
You Turn if you Want to!
You Turn if you Want to!
 00:48:02 49 min
6073 Squaring the Squircles 2024-06-13 Mark Patrik Repo Cipher, Exponents, Palindrome, Ratio, Sums, Thermo, XV
These Circles are Definitely Squared!
These Circles are Definitely Squared!
 01:25:50 86 min
6064 Two Is the Loneliest Number 2024-06-10 Mark Caleb Norris Anti-Ratio, German Whispers, Killer, Ratio
Two is Lonely Here!
Two is Lonely Here!
 00:41:43 42 min
6017 ±1 2024-05-27 Mark Math Pesto Modifier Cells, Ratio, Renban
Modified Sudoku
Modified Sudoku
 00:34:58 35 min
6008 Shima Yuteki 2024-05-24 Mark rockratzero Killer, Ratio, Shimaguni
A Funky New Ruleset
A Funky New Ruleset
 00:39:58 40 min
5975 Tenet 2024-05-14 Mark Jazzora Consecutive, Diagonal, Extra Regions, O/E, Ratio, XV
Some Super Smashing Symmetry!
Some Super Smashing Symmetry!
 00:29:53 30 min
5936 La PrimeAvera 2024-05-02 Mark Kothornos Diagonal, Killer, Little Killer, Primes, Ratio
Springtime for Sudoku
Springtime for Sudoku
 00:42:56 43 min
5911 Nuts and Bolts 2024-04-24 Mark Kennet's Dad Killer, Ratio, Region Sum Lines
The Nuts and Bolts of Sudoku
The Nuts and Bolts of Sudoku
 01:00:02 61 min
5830 Warming Sets 2024-03-30 Mark Teal 6x6, Arrow, Entropic Lines, German Whispers, Mean Mini, Ratio, Region Sum Lines, Sums
Enjoy a Lovely 6x6 Sudoku Here!
Enjoy a Lovely 6x6 Sudoku Here!
 00:20:32 21 min
5794 Dune: The Mentat's Diversion 2024-03-19 Mark David Workman Killer, Ratio, Thermo
Sudoku based on Dune. This will be Diverting ...
Sudoku based on Dune. This will be Diverting ...
 00:32:35 33 min
5785 March of the Palindromes 2024-03-16 Mark Eric Rathbun Diagonal, Little Killer, Palindrome, Ratio
The Palindromes are on the March!
The Palindromes are on the March!
 00:45:33 46 min
5778 Pi Day 2024 2024-03-14 Mark Dr Logic Anti-Knight, Killer, Ratio, Thermo
Time for Some Irrational Celebrations
Time for Some Irrational Celebrations
 00:44:50 45 min
5706 Kropki Kounting 2024-02-21 Mark Myxo Counting Sets, Difference, Ratio
Don't Join the Dots - Count Them!
Don't Join the Dots - Count Them!
 00:51:47 52 min
5668 'I can resist everything but temptation' 2024-02-09 Mark Kennet's Dad Anti-Knight, Modulo, Ratio, Thermo
Resisting Everything ... Well, Almost Everything
Resisting Everything ... Well, Almost Everything
 00:47:20 48 min
5664 Harbor 2024-02-08 Mark Bert Battleship, Count, Ratio, Thermo
Become a Harbor Master with Sudoku Skills!
Become a Harbor Master with Sudoku Skills!
 00:34:49 35 min
5576 2x Cages for the Price of 1 2024-01-13 Mark NurglesGift Incomplete Clues, Killer, Ratio, Thermo, XV
The Gift of Elegant Variant Sudoku
The Gift of Elegant Variant Sudoku
 00:24:13 25 min
5527 Per: Zip 2023-12-29 Mark Anthony Anderson Doublers, Ratio, Zipper Lines
A Fabulous Debut Sudoku
A Fabulous Debut Sudoku
 00:42:33 43 min
5412 Diamond Mining 2023-11-25 Mark Ratfinkz Anti-Knight, Arrow, Counting Sets, Ratio
Mining for Sudoku Gems!
Mining for Sudoku Gems!
 00:42:58 43 min
5394 Schrödinger's Foggy Rationale 2023-11-21 Mark gdc Fog, Ratio, S-Cells
Fog-of-War and Schrodinger Cells? What's Not to Love?
Fog-of-War and Schrodinger Cells? What's Not to Love?
 00:30:45 31 min
5352 VeliX 2023-11-11 Mark Felix Ratio, Thermo, XV
"Happy" Days are Here Again
"Happy" Days are Here Again
 00:31:21 32 min
5249 Twenty Lines 2023-10-17 Mark David Clamage N-Lines, Ratio
Are Twenty Lines Twice as Fun as Ten Lines?
Are Twenty Lines Twice as Fun as Ten Lines?
 00:29:48 30 min
5186 Trophy Case 2023-10-02 Mark ifletchr German Whispers, Killer, O/E, Ratio, Renban, Thermo
The Ryder Cup of Sudoku
The Ryder Cup of Sudoku
 00:29:06 30 min
5114 Brackets 2023-09-15 Mark Kitten Arrow, Diagonal, Ratio
A Terrible Solve of an Excellent Puzzle
A Terrible Solve of an Excellent Puzzle
 00:55:41 56 min
4933 Target Practice 2023-08-01 Mark oxjphs German Whispers, O/E, Ratio
Practise Your Skills with this Sudoku
Practise Your Skills with this Sudoku
 00:19:14 20 min
4930 Knight Arrows 2023-07-31 Mark Dr Sudoku Anti-Knight, Arrow, Ratio
Help me Solve the Arrows of the Knight
Help me Solve the Arrows of the Knight
 00:31:08 32 min
4874 Six Dots 2023-07-17 Mark Lutterot Indexing, Ratio
Going Dotty about Six Dots
Going Dotty about Six Dots
 01:04:20 65 min
4792 Papier-mâché 2023-06-27 Mark Perladel Indexing, Ratio
The Horrors of Indexing
The Horrors of Indexing
 00:32:54 33 min
4514 Short, Sweet and Simple 2023-04-19 Mark Cassadilla Anti-Ratio, German Whispers, Inequality, O/E, Pencilmarks, Ratio, Renban
Short and Very Sweet
Short and Very Sweet
 00:23:41 24 min
4323 Read Between the Lines 2023-03-01 Mark James Kopp German Whispers, Ratio, Renban
What's Hidden Between the Lines?
What's Hidden Between the Lines?
 00:30:12 31 min
3813 Diophantine Addict 2022-10-26 Mark Glen Fletcher Arrow, Killer, Palindrome, Ratio
Diophantine Equations in Sudoku
Diophantine Equations in Sudoku
 00:58:25 59 min

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