List of Python Kata to Update

• Python 3.8 List of kata stuck in Python 3.8. Should be prioritized so we can get rid of the older version. Note that updating to decorator syntax is not required.
• Python 3.10 List of kata stuck in Python 3.10.
• Update to decorator syntax List of kata not using the new decorator syntax.

NOTE: Simply remove the kata from the list after updating.

Python 3.8

This section lists kata that failed to update to Python 3.10 or 3.11 automatically.

1. Create a one-liner FTP client with the ftplib
2. Find Ends of Each Paths
3. One Line Task: Zero Or One
4. The Messenger's Oracle

Python 3.10

This section lists kata that failed to update to Python 3.11 from 3.10 automatically or was created with Python 3.10 after the attempt.

1. Big Big Big Padovan Number
2. Big Generalized Fibonacci numbers
3. Byte me!
4. Calculate k-th digit of π (Pi)
5. Convergents of e
6. Data mining #2
7. Fabergé Easter Eggs crush test
8. Fibonacci With a Broken Interpreter
9. How many double digits?
10. I said the word WOULD instead of WOULDN'T
11. Last digits of N^2 == N
12. Matrix Exponentiation
13. Micro Optimization: Digit Sum
14. Next smaller pronic
15. Number Decoding
16. Pack Some Chocolates
17. Pandas Series 103: Filter Rows From DataFrames That Don't Satisfy Condition
18. Perimeter of squares in a rectangle
19. pipi Numbers!
20. Planning a city quarantine
21. Reverse a singly-linked list
22. Shuffle It Up II
23. Squares sequence
24. Sum of all numbers with the same digits (performance edition)
25. Sum of certain products II
26. Time Is Money (number of operations)
27. Validate FEN notation
28. Web Polygons
29. Wordle! Cheat bot

Test Framework

This section lists Python kata without @test.it in submission tests. This doesn't prevent Python 3.8 upgrade, but we'll be able to make the test framework behave less awkwardly if we can update all kata to the new syntax.

1. [Code War] The Weapon Factory: Assembly Line
2. #3 Matrices: Rearrange the matrix
3. 2 Arrays 1 Sort
4. 3-2-1 Fire!
5. 3D Cellular Neighbourhood
6. 3D Sudoku Builder (a.k.a. multisize skyscraper puzzle)
7. 4 By 4 Skyscrapers
8. 5x5 Nonogram Solver
9. A Crazy Robot? Who's is behind the scenes to make that?
10. A Python iterator for people scared of Exceptions.
11. AD2070: Help Lorimar troubleshoot his robots-Search and Disable
12. Adding words - Part I
13. Adding words - Part II
14. ADFGX Simplified
15. AdFly Encoder and Decoder
16. Airport Arrivals/Departures - #1
17. Alex & snooker: points earned.
18. Algebraic Lists
19. Algorithm Fun: Find The Unknown Number - Part I
20. All divisors of large numbers
21. All Star Code Challenge #31
22. All that is open must be closed...
23. Alpha to Numeric and Numeric to Alpha
24. An Introduction to DocTesting...
25. Angle between two planes
26. Answer the students' questions!
27. Apparently-Modifying Strings
28. Approximate Fractions
29. Approximate solution of differential equation with Runge-Kutta 4
30. Are they really equals ?
31. Are you available?
32. Are you Geometric or Arithmetic? No, I´m both of them.
33. Area of a Shape
34. Arithmetic Expression Placeholders
35. Arithmetic Sequence - find hidden
36. Arithmetic Sequence!
37. Array Hyperrectangularity
38. Array Info
39. Array reduction
40. Array to HTML table
41. ASCII Cipher
42. ASCII Logo Basic
43. ASCII85 Encoding & Decoding
44. Assembling a Circular Genome (Shortest Common Superstring)
45. Assorted Rectangular Pieces Puzzle
46. Asyncio - The Beginning
47. Author Disambiguation: a name is a Name!
48. Author Disambiguation: Signatures worth it
49. Author Disambiguation: to the point
50. Averaging in an Infinite Array
51. Avoid trillion years of calculations !!
52. Bad Apples
53. Bad Exception Handling
54. Balance the parentheses
55. Balanced parentheses string
56. Base Conversion
57. Base Reduction
58. BasE91 encoding & decoding
59. Basic Optimization - Collatz Sum Sequence
60. Basic physics problem - Space -Kinematics
61. Basic socket server
62. Basic subclasses - Adam and Eve
63. Batman Quotes
64. Become The Ultimate Phychic
65. Beggar Thy Neighbour
66. Bernoulli numbers
67. Berserk rater: CG Vs. Clang
68. Bezier Curves
69. Big Generalized Fibonacci numbers
70. Binary Range Extraction
71. Binary search tree validation
72. Binary Search Trees
73. Binary Simulation
74. Binary Tree Compare
75. Binding of Algebraic Data Types
76. Bingo Card
77. Bishop Movement checker
78. Blaine is a pain
79. Blobservation
80. Bloxorz Solver
81. Boolean array generator
82. Bowling score calculator
83. Bracket Buster
84. Brainfuck Translator
85. Bridge Puzzle
86. Bridge: SAYC Openings
87. Build a Trie
88. Building blocks
89. Building Chains Using the Arithmetic Derivative of a Number
90. Button sequences
91. Cable Matching Problem
92. Caeser Encryption
93. Calculate daily accurate interest for a bank account
94. Calculate the expression
95. Calculating Expected Utility
96. Call Center Call Backs
97. Can these three numbers form a date?
98. can you guess what it is ?
99. Candy thieves
100. Car Rental Business Needs Statistics and Programming
101. Card-Chameleon, a Cipher with Playing Cards
102. Carpet shop
103. Cartesian neighbors distance
104. Cartesian product
105. Castle of Cubes
106. Cat and Mouse - 2D Version
107. Challenge Fun #17: Merge Arrays
108. Chameleon unity
109. Cheat at rock paper scissors!
110. Check and Mate?
111. Checkerboard King Combo Move
112. Checkout Line Pricing
113. Chess Fun #10: Chess Encryption
114. Chess Fun #9: Bishops And Rooks
115. Chess position parser (FEN)
116. Children and candies
117. Chocolate problem
118. Choose featured projects for Gratipay's homepage!
119. Circle area inside square
120. Circular Limited Sums
121. Clock Hands
122. Clock Lock - Save the World, Time Traveler! :)
123. Clone Graph
124. Cockroach Bug Scatter
125. Codenames - matrix conversions
126. Codewars API
127. Codwars or Codewars?
128. Cody Block's Pro Skater
129. Columnar Transposition Cipher Collisions
130. Composed Integers Having Prime Factors Only Once
131. Compound Nouns, Common Nouns, and Adjectives Test
132. Computational Geometry #1: Mixing Paints
133. Compute Nullable Non-Terminals
134. Confidence Intervals
135. Connect Four - placing tokens
136. Consecutive Digit Constraints
137. Construct Graph Class (simple)
138. Context manager decorator
139. Continuation in arguments, part 1
140. Convergents of e
141. Convert between radians and degrees
142. Convert integer to Whitespace format
143. Convex hull area
144. Conways game of life on a toroidal array
145. Coordinates Validator
146. Coping with NP-Hardness #1: 2-SAT
147. Coping with NP-Hardness #2: Max Weight Independent Set of a Tree
148. Coping with NP-Hardness #3: Finding the Minimum Hamiltonian Cycle
149. Coping with NP-Hardness #4: 3-Recoloring
150. Count Connectivity Components
151. Count the days!
152. Count The Hits Adding Contiguous Powers!
153. Countdown
154. Counting Cuts
155. Counting hexagons
156. Courier 🚚
157. Cracking the Vigenère cipher, step 1: determining key length
158. Crane Operation
159. Crazed Templating
160. Create a one-liner FTP client with the ftplib
161. Cricket Scores
162. Crouching Distribution, Hidden Constant
163. Custom Array Filters
164. Custom Christmas Tree III: the center of leaves
165. Cut me in Pieces but in The Way I Like
166. Cut the cake
167. Cycle Detection: Floyd's The Tortoise and the The Hare
168. Cycle Detection: greedy algorithm
169. D&D Character generator #1: attribute modifiers and spells
170. D&D Character generator #2: psion power points
171. D&D Character generator #3: carrying capacity
172. Data mining #1
173. Date Format Validation
174. Deadlock Detection
175. Debug the functions EASY
176. Debugger
177. Decimal to any Rational or Irrational Base Converter
178. Decipher the sentence
179. Decode the Morse code, advanced
180. Decode the Morse code, for real
181. Decompose a number
182. Decreasing Numbers with N Digits
183. Deficiently Abundant Perfect Amicable Numbers
184. Democracy Representation
185. denumerate string
186. Department scheduler [simple]
187. Derpcode Interpreter
188. Design a Simple Automaton (Finite State Machine)
189. Detecting Factions in Friend-Foe Networks
190. Determine Results of Pole Vault Competition
191. Devil's Sequence
192. DevOps legacy roasting -> disco inferno -> burn baby burn
193. Dice rolls threshold
194. Diff That Poly!
195. Diophantine Equation Solver
196. Disease Spread
197. Divide polynomial by polynomial
198. Divisible by primes
199. Divisor harmony
200. Dobble
201. Dobble: Identify the missing cards
202. Dog recommendation system
203. Dollar words
204. Domino Tiling - 2 x N Board
205. Domino Tiling - 3 x N Board
206. Dota 2 Bots - Pudge's Meat Hook
207. Double Even Magic Square
208. Doubly Linked List
209. Draw a Circle.
210. Dropzone
211. Dynamic Connectivity
212. Easy Cyclist's Training
213. Egg Drops
214. Eight ways to iterate over table
215. Elections: Weighted Average
216. Elo rating - one game, one pair
217. Endianness Conversion
218. Endless String
219. Enigeliisohe too Eniigeeliiisoohee Toroanisoliatooro
220. Enumerable Magic #30 - Split that Array!
221. Error Correction Codes
222. Escape the Aliens
223. Escape the maze
224. Esolang Interpreters #1 - Introduction to Esolangs and My First Interpreter (MiniStringFuck)
225. Esolang Interpreters #3 - Custom Paintf**k Interpreter
226. Esolang: InfiniTick
227. Esolang: Stick
228. Esoteric Language: 'Poohbear' Interpreter
229. Euclidean distance in n dimensions
230. Euler method for numerical integration
231. Euler Squares
232. Evil Autocorrect Prank
233. Exact p
234. Exception Handling (with restrictions)
235. Exclusive presentations
236. Exercise in Summing
237. Experimenting with a sequence of complex numbers
238. Express number as sum of four squares
239. Fabergé Easter Eggs crush test
240. Family Relations
241. Family Tree - Ancestors
242. Fastest Code : Equal to 24
243. Fat Fingers
244. Feed Kahumolings!
245. Fibonacci With a Broken Interpreter
246. File Path Operations
247. Fill in the gaps in my timesheet.
248. Filtering Values For an Election
249. Financing a purchase
250. Find all possible number combos that sum to a number
251. Find All The Unique Substrings
252. Find amplitude of a binary tree
253. Find Ends of Each Paths
254. Find the Biggest Triangle
255. Find the centre of a sphere
256. Find the Counterfeit
257. Find the files then read them
258. Find the lines!
259. Find the most adjacent integers of the same value in a grid
260. Find the name of the lucky variable
261. Find the Next Powers Higher than a Given Value With Given Constraints
262. Finding a Circulation
263. Finish Guess the Number Game
264. Finish NxN Array Tic-Tac-Toe Game
265. First n Prime Numbers
266. First-Class Function Factory
267. Fix arithmetic progression
268. Fix array sequence
269. Fix the base conversion function!
270. Fix the Bugs (Syntax) - My First Kata
271. Fix the pipes
272. Fix the robot and save the secret Mars base
273. Fixed-length integer partitions
274. Fizz Buzz Reloaded
275. FizzBuzz++
276. Flatten A Nested Dictionary That Contains Lists
277. Float or Integer verifier
278. Floating-point Approximation (III)
279. Folding Tiles Solver
280. Following the Paths of Numbers Through Prime Factorization
281. Football Season
282. Fractions of a currency' smallest value
283. Frogificator
284. Fuel usage reporting
285. Function Composition
286. Function iteration
287. Funnel Out A String
288. Gambling Game: Choosing Order
289. Game of Go
290. Game of Thrones : Wildlings are coming!
291. Geohashing
292. Get recursion limit
293. Get the Excel column title!
294. getting started #let's piay
295. Getting the neighbors
296. Give me data
297. Gnomes and Hats: A Horror Story
298. Golden Section Search
299. GPS coordinate conversions - DD to DMS
300. Grid index
301. Group prime numbers
302. Guess the (prime) number, digit by digit
303. Guess the float #1
304. Guess the list pattern #2
305. Guess the list pattern #3
306. Guess the list pattern #4
307. Guess Who?
308. guessing game server
309. Gymbro's Unique Gym - Weight Calculator
310. Hack the NSA
311. Hackermann
312. Hanoi Tower Array
313. Happy Numbers. Another performance edition.
314. Heartbeat Status Montor
315. Help Green Lantern with his web site
316. Help Mr. E
317. Help Suzuki pack his coal basket!
318. Helpers For a 3DGame I: Biggest Triangle in a Sphere
319. Heroes of Might & Magic II: Chain Lightning
320. Hidden pixels
321. Hide a message in a deck of playing cards
322. How far away is it ?
323. How good are you really?
324. How long each order will take
325. How many dots are covered
326. HTML Complementary Color
327. HTML Element Generator
328. Hungarian Cardinal Numerals
329. Hypercube Lists
330. I Liked the SQL Better...
331. I'm already Tracer
332. Image host filename generator
333. Image Processing: Gaussian Blurring
334. Imaginary Base Conversion
335. Imperfect Fibonacci Rabbits
336. Implement Classes by using Functions
337. Implementing SHA-1
338. Inertial Array
339. Infinite continued fractions
340. Insane Circular Limited Sums
341. Insane Increasing or Decreasing Numbers
342. Insane Tri-Bicolor Tiling
343. Integer factorization: CFRAC basics
344. Integer to string deciphering
345. Integer triangles
346. Integer Triangles I: Maximum Number of Integer Triangles with the Smallest Perimeter
347. Interlaced Spiral Cipher
348. Intro to Statistics - Part 1: A Five figure summary
349. Intro to Statistics - Part 2: Boxplots
350. Intro to Statistics - Part 3: Correlation Coefficients
351. IntroToArt
352. intTunes
353. IPv4 Parser
354. IRR Calculation - evaluation of profitability
355. Is it a group? (Group theory, Abstract algebra)
356. Is there a sequence re-occuring in the list
357. Is this a good batch of stout? (Student's t test)
358. Is this event within this time?
359. Isogram Cipher
360. Iterative Rotation Cipher
361. Jacob's Weight Loss Program
362. Javascript filter - 1
363. Jimmy's Journey
364. Job Matching #2
365. Jobs
366. Johnny the Poker Player - What is my equity?
367. Joyful Transpiler
368. Jumble words
369. Jungerstein's Math Training Room: 4. O Pascal tree, how green are your leaves?
370. Jungerstein's Math Training Room: 5. Cat back
371. Kata 2019: Bonus Game II
372. Kata Impossible I - The Impossible Lottery
373. KISS - Keep It Simple Stupid
374. Knapsack problem - the max value with the lists of elements
375. Krazy King Blackjack
376. Largest Numeric Palindrome
377. Largest Power that Divides a Large Factorial
378. Largest prime number containing n digit
379. Last digits of N^2 == N
380. Latin Squares
381. Lattice Paths, But...?
382. Lazily executing a function
383. Lazy Init
384. Learning Remote Control
385. Left$ and Right$
386. Length Factorial Encryption
387. Let's Play Darts: Beat The Power!
388. Letterss of Natac
389. Letterss of natac: build or buy
390. Level Up!
391. Lexographic sort with a twist
392. Linked Lists - Front Back Split
393. Linked Lists - Remove Duplicates
394. Linked Lists - Shuffle Merge
395. Linked Lists - Sorted Merge
396. Linux history and ! command. Series#3 The !-n command
397. Linux history and ! command. Series#4 The !string command
398. Linux history and ! command. Series#5 The !?string command
399. List of pairs instead of dictionary
400. Little PL/SQL parser - get text literals
401. Logic Detective
402. Longest Consecutive Sequence of Squares
403. Longest Palindromic Substring (Linear)
404. Looper
405. Loose Change (Part 2)
406. Ludic numbers
407. Magic Zeckendorf
408. Magritte - Golconda
409. Mahjong - #1 Pure Hand
410. Making Copies
411. Markings to White Triangles and How to Find Them
412. Master your primes: sieve with memoization
413. Mastermind
414. matrix expanding
415. Matrix Exponentiation
416. Max Collatz Sequence Length
417. Max number of people and year in a specific place
418. Maximum 2d subarray sum
419. Maximum Area in Histogram
420. Maximum Overkill
421. Maze Exit
422. Mean without outliers
423. Message from Alien (Easy Version)
424. Midpoint Sum
425. Minesweeper
426. Minimal Cost Binary Search Trees
427. Minimal Squarewave PCM Synthesizer
428. Minimum exact p
429. Minimum number of taxis
430. Minimum path in squares
431. Minimum Transactions
432. Minimum unfairness of a list/array
433. Mistaking a forest for a tree
434. Mongodb ObjectID
435. MONTE CARLO 3D
436. Morse Encoding
437. Most improved - Puzzles #4
438. MTV Cribs
439. Multi Poly Coordinates
440. Multicast IP Address to MAC address mapping
441. Multiply Two Numbers Without Integers
442. Multiply without asterisk
443. Multiplying Binomials
444. Multisize Nonogram Solver
445. Musical Scales and Modes
446. My smallest code interpreter (aka Brainf**k)
447. My Very Own Python's Split Function
448. Mysterious Letters
449. N Linear
450. n-Bonacci Ratio
451. N-centered Array
452. N-Dimensional Vector Magnitude
453. N00bify - English to n00b Translator
454. Nerdle - The General Version
455. New season, new league
456. Next level string padding
457. NIM the game
458. No adjacent integers sequence generator
459. No arithmetic progressions
460. No unknown variables!
461. Northwest and Southeast corners
462. nova polynomial 5. from roots
463. Now that's a crib!
464. Number Decoding
465. Numbers Having Digits Occurring Only Once
466. Numbers with Collatz Starting Patterns
467. Nut Farm
468. Nut Farm 2
469. OCR Numbers
470. Odd-squares traversal
471. Odder than the rest - 2
472. Old Mobile Display
473. One for His Nob: Scoring Cribbage Hands
474. One Line Task: Diamond Creator Pro
475. One line task: Is the King in check ?
476. One Line Task: Palindrome String
477. Only-Readable-Once list
478. Operator Insertion
479. Optimal Taxi Fare
480. Optimized Pathfinding Algorithm
481. Ordinal Numbers
482. Packet Delivery -- Enforcing Constraints
483. packing rectangles
484. Palindrome integer composition
485. Palindromic Expression
486. Palindromization
487. Pandigital Sequence
488. Paperboy 2
489. Papers, Please
490. Parametric to Rectangular Equation
491. Parentheses are loud !
492. Parse python terminal output
493. Parse the log
494. Password generator
495. Path Finder #4: where are you?
496. Perimeter Sum
497. Permutation-free Strings
498. Physics - Mechanics - Atwood Machines in Series
499. Pi approximation fractions
500. Picking the best casino game
501. Plotting points on a grid.
502. Polydivisible Numbers
503. Polynomial Evaluation - Binomial Form
504. Posix command
505. Possible Triangles Formed with Available Iron Rods
506. Power Laws
507. Power tower modulo m
508. Precise fractions pt. 1 - basics
509. Prefill an Array
510. Prime Ant - Crazy Version
511. Prime factorization
512. Prime number decompositions
513. Probabilities for Sums in Rolling Cubic Dice
514. Probable Prime or Composite (Much bigger primes)
515. Process Waterfowl Survey Data Results
516. Processes
517. Program hangs!
518. Progress of a challenge
519. Progressive Spiral Number Branch
520. Projectile Motion
521. Promenade Fractions (from BIO 2016)
522. Propositional SAT Problem
523. Propositional SAT Problem [Performance]
524. Python's Dynamic Classes #1
525. Python's Dynamic Classes #3
526. Quadratic Enumerator
527. Quest: Kill ten rats!
528. Queue Battle
529. Radical Simplifier
530. Radix Tree
531. Random Integers
532. Range Extractor
533. Range of Integers in an Unsorted String
534. Range Parser
535. Ranking Poker Hands
536. Rational Zeros
537. RDS (Radio Data System) Splash Text Concatenation
538. Read a UPC/Barcode
539. Read a UPC/Barcode Part 2
540. Recaman Sequence
541. Recovering from a Disk Crash - Reverse Engineering Some Lost Code!
542. Rectangle Cipher Puzzle
543. Rectangular Subsets of Tiles in Square Grids (Fixed)
544. Recursion puzzle
545. Regex for a decimal number divisible by 4
546. Regex for Gregorian date validation
547. Regex to Match Significant Figures
548. Regexp basics - parsing mana cost
549. RegExp Fun #1 - When I miss few days of gym
550. Regular expression for binary numbers divisible by 5
551. Regular Expressions (groups): Splitting phone numbers into their separate parts.
552. Relatively Prime Numbers
553. Remember members decorator
554. Retirement Planning as a Service
555. Reverse a singly-linked list
556. Reverse Inside Parentheses (Inside Parentheses)
557. Reverse polish notation calculator
558. Reverse Polish Notation solver (Easy)
559. Reversi row rudiments
560. riemann sums II (trapezoidal rule)
561. Right Truncatable Harshad numbers
562. RoboScript #2 - Implement the RS1 Specification
563. RoboScript #3 - Implement the RS2 Specification
564. RoboScript #4 - RS3 Patterns to the Rescue
565. Roman numerals, Zeroes and Fractions
566. ROT13 variant cipher
567. Rotate Array (JS)
568. Rotate Corners
569. Rotated string
570. Rotational energy levels
571. Rotational state populations (the Boltzmann distribution)
572. Rotten Oranges
573. Round by 0.5 steps
574. RPG dice roller
575. RPS Knockout Tournament Winner
576. Rubiks cube CFOP algo : Cross
577. Rudimentary Pivot Table
578. Rule 30
579. Russian Peasant Multiplication
580. Sales report
581. Same Birthday Probability
582. Sat Nav directions
583. Save for retirement
584. Schedulability Test
585. School Class Arrangement
586. Searching for Bulls
587. Seat Allocation Double Dutch
588. Secret Agent Time Travel Calculations
589. Secret knock
590. Selective memory
591. Self-closing Cookie Jar
592. Semi-Thue Systems - The Word Problem [Part 1]
593. Sentence to words
594. Separate filename from extension
595. Sequence generator
596. Seventh JSON of a seventh JSON
597. Shakespearean Tug of War
598. Shallowest path across the river
599. Shelve your trophies
600. Shifted cycles
601. Shorten IPv6 Address
602. Shortest string
603. Shortest string that contains all possible bigrams from set of characters
604. Sierpinski triangle
605. Simple Barcode Scanner
606. Simple elevator
607. Simple Encryption #2 - Index-Difference
608. Simple Encryption #4 - Qwerty
609. Simple Events
610. Simple eviternity numbers
611. Simple Finite State Machine Compiler
612. Simple Fun #134: Fix Progression
613. Simple Fun #139: Black And White
614. Simple Fun #148: Exchange Sort
615. Simple Fun #149: Next Day Of Week
616. Simple Fun #153: Knight Rescue
617. Simple Fun #167: Spreadsheet
618. Simple Fun #170: Sum Groups
619. Simple Fun #188: Slogans
620. Simple Fun #201: Cards And Pero
621. Simple Fun #26: Weak Numbers
622. Simple Fun #283: Censor The Forbidden Words
623. Simple Fun #299: Look And Say And Sum
624. Simple Fun #335: Two Programmers And Gold
625. Simple Fun #342: Buy Newspaper
626. Simple Fun #387: Lonely Frog IV
627. Simple Fun #55: Cyclic String
628. Simple Fun #62: Draw Rectangle
629. Simple Fun #89: Boxes Packing
630. Simple Interactive Interpreter
631. Simple max digit sum
632. Simple non-decreasing array
633. Simple number divisibility
634. Simple palindrome game
635. Simple parenthesis removal
636. Simple Pig Latin
637. Simple repeated words
638. Simple Socket Client
639. Simple string matching
640. Simple Substitution Cipher Helper
641. Simple Sum (with restrictions)
642. Simple Web Framework #1: Create a basic router
643. Simpler Interactive Interpreter
644. Simplexer
645. Simplifying multilinear polynomials
646. Simulating Collective Behaviour with Linear Threshold Model
647. Simultaneous Equations - Three Variables
648. Single Word Pig Latin
649. Sleigh Authentication
650. So Easy: Charge time calculation
651. So many kinds of numbers!
652. Social Golfer Problem Validator
653. Social Golfer Problem Validator V2
654. Socialist distribution
655. socket guessing game client
656. Solve the Grid! Binary Toggling Puzzle
657. Some Tips For Quality Control I
658. Sophie Germain primes
659. Sort a massive list of strings (hard)
660. Sort only integers in Nested List
661. Sort the comments!
662. Sortable Poker Hands
663. Sortable Shapes
664. Sorting Poker
665. Sorting Time
666. Space Invaders Underdog
667. Spanish class help
668. Speed Control
669. Spelling Bee II
670. SPF Russia
671. Spidey Swings Across Town
672. Spinning Rings - Fidget Spinner Edition
673. Split string by multiple delimiters
674. Split Without Loss
675. Splitting the Workload (part II)
676. Sports league table - help your local team!
677. Spreadsheet Cell Name Conversions
678. Spy Agent
679. Spy games - rebuild your decoder
680. Squad number generator
681. Square sums (simple)
682. Stack Arithmetic Machine
683. Stop the loop after n seconds
684. Strange roman numbers
685. String counting
686. String Pyramid
687. String searching with wildcard
688. String Shortener (shrink)
689. String subpattern recognition III
690. String to integer conversion
691. Strip Url Params
692. Sub-array division
693. Subsequence Product Sum
694. Subset Sum Problem
695. Sudoku Solver
696. Sum and Multiply
697. Sum of certain products
698. Sum of certain products II
699. Sum of dices
700. Summing subsets in list
701. Sungka
702. Supernatural
703. Swap items in a dictionary
704. Swap Row In Certain Columns of a Matrix
705. Symbolic differentiation of prefix expressions
706. T.T.T.#2: Equal to 24
707. Task master
708. Terrible Exception Handling
709. Tetris Series #2 — Primitive Gameplay
710. Texas Hold'em Hands
711. The Chakitra's language
712. The cross-stitch Kata
713. The Enigma Machine - Part 2: A Rotor
714. The Enigma Machine - Part 3: The Reflector
715. The Enigma Machine - Part 4: A Rotor Part II
716. The most asked question on CodeWars
717. The Seven Bridges of Königsberg
718. Time For Validation
719. Traffic lights
720. Train of dominoes
721. Triangulate a konvex polygon
722. Tug-o'-War
723. Twice Their Age
724. Two Sets of Equal Sum
725. Understanding epidemic.
726. Unicode Math
727. Vanilla Neural Network from scratch
728. Vanity Plates
729. Watchmaker problems - watch hands issue
730. Where am I again?