Collatz in Python in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar 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 Hilbert Curve 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau 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 Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau 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 Calendar 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 Hilbert Curve 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 720th zt14427 548 104 19ms 30 Apr 2023 720th IoLimmer 548 104 17ms 24 Jul 2024 723rd LordSir101 543 105 18ms 19 Jul 2022 723rd tmanternach 543 105 19ms 24 Nov 2022 723rd weber-hge 543 105 15ms 13 Jun 2023 723rd Eugen-str 543 105 20ms 24 Oct 2023 727th ms-tingliang 538 106 15ms 5 Aug 2022 727th achilleasr 538 106 20ms 7 Nov 2022 727th OleBrumm 538 106 21ms 8 Jan 2023 727th AbhilashaTandon 538 106 20ms 19 Sep 2023 727th sheeperino 🇮🇹 538 106 20ms 11 Oct 2024 732nd phpboyscout 533 107 17ms 18 May 2023 732nd DrPrettyman 533 107 15ms 5 Jul 2023 732nd joseph-w0ng 533 107 15ms 5 Jul 2024 732nd EnisEfe0 533 107 20ms 18 May 2025 736th landyrisbad 528 108 19ms 13 Nov 2022 736th cakular 528 108 25ms 17 May 2024 736th glassala 528 108 15ms 25 Oct 2024 736th CarterStroik 528 108 21ms 12 Nov 2025 740th tjefferson401 523 109 29ms 16 Sep 2022 740th ariesmarinus 523 109 19ms 21 Nov 2024 742nd profJGermain 518 110 20ms 7 Feb 2024 742nd JMMMMC 518 110 21ms 23 Oct 2024 742nd jtb0362 518 110 20ms 10 May 2025 745th sagnik3 509 112 19ms 8 Aug 2022 745th craftablescience 509 112 17ms 19 Sep 2023 747th kelseychristensen 504 113 20ms 2 Nov 2022 747th ArmsTheLimited 504 113 16ms 1 Jun 2023 749th jstechman 496 115 33ms 24 Feb 2024 749th dan422442 496 115 20ms 19 Oct 2024 751st keelanfh 491 116 17ms 20 Dec 2023 751st returnitynet 491 116 18ms 27 Jan 2025 751st EthanPatel01000101 491 116 17ms 20 Oct 2025 754th gioto64 487 117 17ms 8 Dec 2022 754th WilfredSalmon 487 117 18ms 21 Oct 2023 756th XianchengZ 483 118 20ms 18 Aug 2023 756th brindak2005 483 118 17ms 2 May 2025 758th jmmographer 467 122 20ms 21 Oct 2023 758th RucatJ 467 122 19ms 8 Aug 2025 760th xbxbxb007 463 123 21ms 10 Jan 2024 761st kevinnaviapaiva 442 129 19ms 20 Feb 2025 762nd AdrianN001 438 130 17ms 6 Aug 2023 763rd wyatt-the-hump 435 131 16ms 24 Dec 2022 763rd hotmanga 435 131 13ms 20 Oct 2023 763rd Jordynar02 435 131 22ms 3 May 2025 766th Zach10za 429 133 24ms 23 Jan 2024 767th vtilde 425 134 17ms 8 Jan 2024 768th fig-apple 422 135 11ms 24 Jun 2023 769th S-Ruban 416 137 13ms 25 Feb 2023 770th FLOKI0421 410 139 21ms 4 May 2025 770th noahdorsch 410 139 20ms 5 May 2025 772nd bartsowka2000 383 149 20ms 10 Jul 2023 773rd KapelMeister 380 150 15ms 5 Sep 2025 774th Shegofa-Ahmadi 370 154 15ms 28 Apr 2025 775th arinhyther 368 155 17ms 24 Dec 2022 776th SebbeCaliban 363 157 18ms 11 Apr 2023 777th codefeld 329 173 20ms 5 Mar 2023 778th fl3ur1nestimable 320 178 17ms 24 Oct 2022 779th Laellekoenig 306 186 16ms 7 Nov 2025 780th Siyasia 302 189 17ms 22 Apr 2025 781st kalehika1234 295 193 14ms 24 Apr 2025 782nd hannahherbig 294 194 15ms 30 Mar 2023 783rd dahappy1989 278 205 19ms 5 Nov 2023 784th sahilshresthaa 277 206 18ms 4 May 2025 785th jalbertgordon 275 207 16ms 24 Oct 2023 786th AidanWalter 273 209 17ms 3 Jan 2025 787th sayloren 263 217 21ms 5 Mar 2023 787th AshayP123 263 217 17ms 1 May 2025 789th rubenguajardount 253 225 21ms 4 May 2025 790th amritm55 250 228 14ms 1 Apr 2025 791st clarkatunt19 249 229 21ms 3 May 2025 792nd jac1107 248 230 18ms 4 May 2025 792nd rcs0252 248 230 16ms 4 May 2025 794th apurbapokharel 244 234 20ms 3 Apr 2025 795th wlopez44 236 242 15ms 29 Apr 2025 795th sakshiPatel2602 236 242 17ms 3 May 2025 797th Zok030 235 243 14ms 1 Apr 2025 797th Josemnz 235 243 14ms 28 Apr 2025 799th tophy6 232 246 14ms 1 Apr 2025 799th LyndaS317 232 246 14ms 14 Apr 2025 First Prev 721–800 of 823 Next Last
