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 674th joseph-w0ng 533 107 5 Jul 2024 674th EnisEfe0 533 107 18 May 2025 678th landyrisbad 528 108 13 Nov 2022 678th cakular 528 108 17 May 2024 678th glassala 528 108 25 Oct 2024 681st tjefferson401 523 109 16 Sep 2022 681st ariesmarinus 523 109 21 Nov 2024 683rd profJGermain 518 110 7 Feb 2024 683rd JMMMMC 518 110 23 Oct 2024 683rd jtb0362 518 110 10 May 2025 683rd davidludwik2370 518 110 15 days ago 687th sagnik3 509 112 8 Aug 2022 687th craftablescience 509 112 19 Sep 2023 689th kelseychristensen 504 113 2 Nov 2022 689th ArmsTheLimited 504 113 1 Jun 2023 691st HunterC14 500 114 18 Oct 2024 692nd jstechman 496 115 24 Feb 2024 692nd dan422442 496 115 19 Oct 2024 694th keelanfh 491 116 20 Dec 2023 694th returnitynet 491 116 27 Jan 2025 696th gioto64 487 117 8 Dec 2022 696th WilfredSalmon 487 117 21 Oct 2023 698th XianchengZ 483 118 18 Aug 2023 698th brindak2005 483 118 2 May 2025 700th jmmographer 467 122 21 Oct 2023 700th RucatJ 467 122 5 days ago 702nd xbxbxb007 463 123 10 Jan 2024 703rd kevinnaviapaiva 442 129 20 Feb 2025 704th AdrianN001 438 130 6 Aug 2023 705th wyatt-the-hump 435 131 24 Dec 2022 705th hotmanga 435 131 20 Oct 2023 705th Jordynar02 435 131 3 May 2025 708th Zach10za 429 133 23 Jan 2024 709th vtilde 425 134 8 Jan 2024 710th fig-apple 422 135 24 Jun 2023 711th S-Ruban 416 137 25 Feb 2023 712th FLOKI0421 410 139 4 May 2025 712th noahdorsch 410 139 5 May 2025 714th bartsowka2000 383 149 10 Jul 2023 715th sa1640 370 154 28 Apr 2025 716th arinhyther 368 155 24 Dec 2022 717th SebbeCaliban 363 157 11 Apr 2023 718th codefeld 329 173 5 Mar 2023 719th fl3ur1nestimable 320 178 24 Oct 2022 720th Siyasia 302 189 22 Apr 2025 721st kalehika1234 295 193 24 Apr 2025 722nd hannahherbig 294 194 30 Mar 2023 723rd Upload-and-View 🇺🇦 282 202 19 days ago 724th dahappy1989 278 205 5 Nov 2023 725th sahilshresthaa 277 206 4 May 2025 726th jalbertgordon 275 207 24 Oct 2023 727th AidanWalter 273 209 3 Jan 2025 728th sayloren 263 217 5 Mar 2023 728th AshayP123 263 217 1 May 2025 730th rubenguajardount 253 225 4 May 2025 731st amritm55 250 228 1 Apr 2025 732nd clarkatunt19 249 229 3 May 2025 733rd jac1107 248 230 4 May 2025 733rd rcs0252 248 230 4 May 2025 735th apurbapokharel 244 234 3 Apr 2025 736th wlopez44 236 242 29 Apr 2025 736th sakshiPatel2602 236 242 3 May 2025 738th Zok030 235 243 1 Apr 2025 738th Josemnz 235 243 28 Apr 2025 740th tophy6 232 246 1 Apr 2025 740th LyndaS317 232 246 14 Apr 2025 742nd letdank 231 247 1 Apr 2025 742nd AdamGonzo1254 231 247 3 May 2025 744th shawncrabtree 226 252 5 Jul 2025 745th punkroczombie 224 254 4 May 2025 746th Abulsamad 200 285 5 May 2025 747th aidnrox 188 303 2 May 2025 748th OffSecVik 188 304 25 Feb 2023 749th Hailee100 182 314 1 Apr 2025 750th lightediand 🇬🇧 179 319 14 Dec 2022 Prev 676–750 of 764 Next