Collatz in Python in chars. Cheevos Holes Recent Holes Langs Medals Misc All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 676th landyrisbad 528 108 13 Nov 2022 676th cakular 528 108 17 May 2024 676th glassala 528 108 25 Oct 2024 679th tjefferson401 523 109 16 Sep 2022 679th ariesmarinus 523 109 21 Nov 2024 681st profJGermain 518 110 7 Feb 2024 681st JMMMMC 518 110 23 Oct 2024 681st jtb0362 518 110 10 May 2025 681st davidludwik2370 518 110 13 days ago 685th sagnik3 509 112 8 Aug 2022 685th craftablescience 509 112 19 Sep 2023 687th kelseychristensen 504 113 2 Nov 2022 687th ArmsTheLimited 504 113 1 Jun 2023 689th HunterC14 500 114 18 Oct 2024 690th jstechman 496 115 24 Feb 2024 690th dan422442 496 115 19 Oct 2024 692nd keelanfh 491 116 20 Dec 2023 692nd returnitynet 491 116 27 Jan 2025 694th gioto64 487 117 8 Dec 2022 694th WilfredSalmon 487 117 21 Oct 2023 696th XianchengZ 483 118 18 Aug 2023 696th brindak2005 483 118 2 May 2025 698th jmmographer 467 122 21 Oct 2023 698th RucatJ 467 122 3 days ago 700th xbxbxb007 463 123 10 Jan 2024 701st kevinnaviapaiva 442 129 20 Feb 2025 702nd AdrianN001 438 130 6 Aug 2023 703rd wyatt-the-hump 435 131 24 Dec 2022 703rd hotmanga 435 131 20 Oct 2023 703rd Jordynar02 435 131 3 May 2025 706th Zach10za 429 133 23 Jan 2024 707th vtilde 425 134 8 Jan 2024 708th fig-apple 422 135 24 Jun 2023 709th S-Ruban 416 137 25 Feb 2023 710th FLOKI0421 410 139 4 May 2025 710th noahdorsch 410 139 5 May 2025 712th bartsowka2000 383 149 10 Jul 2023 713th sa1640 370 154 28 Apr 2025 714th arinhyther 368 155 24 Dec 2022 715th SebbeCaliban 363 157 11 Apr 2023 716th codefeld 329 173 5 Mar 2023 717th fl3ur1nestimable 320 178 24 Oct 2022 718th Siyasia 302 189 22 Apr 2025 719th kalehika1234 295 193 24 Apr 2025 720th hannahherbig 294 194 30 Mar 2023 721st Upload-and-View 🇺🇦 282 202 17 days ago 722nd dahappy1989 278 205 5 Nov 2023 723rd sahilshresthaa 277 206 4 May 2025 724th jalbertgordon 275 207 24 Oct 2023 725th AidanWalter 273 209 3 Jan 2025 726th sayloren 263 217 5 Mar 2023 726th AshayP123 263 217 1 May 2025 728th rubenguajardount 253 225 4 May 2025 729th amritm55 250 228 1 Apr 2025 730th clarkatunt19 249 229 3 May 2025 731st jac1107 248 230 4 May 2025 731st rcs0252 248 230 4 May 2025 733rd apurbapokharel 244 234 3 Apr 2025 734th wlopez44 236 242 29 Apr 2025 734th sakshiPatel2602 236 242 3 May 2025 736th Zok030 235 243 1 Apr 2025 736th Josemnz 235 243 28 Apr 2025 738th tophy6 232 246 1 Apr 2025 738th LyndaS317 232 246 14 Apr 2025 740th letdank 231 247 1 Apr 2025 740th AdamGonzo1254 231 247 3 May 2025 742nd shawncrabtree 226 252 5 Jul 2025 743rd punkroczombie 224 254 4 May 2025 744th Abulsamad 200 285 5 May 2025 745th aidnrox 188 303 2 May 2025 746th OffSecVik 188 304 25 Feb 2023 747th Hailee100 182 314 1 Apr 2025 748th lightediand 🇬🇧 179 319 14 Dec 2022 749th chaamsak 177 322 1 May 2025 750th joshuamkite 174 328 15 Aug 2023 Prev 676–750 of 762 Next