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 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 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 Trinomial Triangle 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time 595th lhulinsky 633 90 22 Oct 2024 595th bthalheim 633 90 6 Dec 2024 595th SinArieh 633 90 4 May 2025 595th islptng 633 90 7 Jul 2025 595th Mr-McChicken 633 90 10 days ago 606th AbelPelser 626 91 3 Jul 2022 606th Seis 626 91 9 Dec 2022 606th r-i-c-e 626 91 9 Jul 2023 606th joshcors 626 91 30 Jun 2024 606th resoNathan 626 91 9 Jul 2024 606th jameswmccarty 626 91 24 Sep 2024 606th hamilton-bonds 626 91 12 Nov 2024 606th Wonamm 626 91 14 Feb 2025 614th TimLeffke 620 92 17 Aug 2022 614th Rythoka 620 92 17 Oct 2022 614th UriyaBA 620 92 19 Mar 2023 614th VladislavGitter 🇪🇸 620 92 14 Nov 2023 614th ridingqwerty 🇺🇸 620 92 22 Dec 2023 614th Thonoton 620 92 1 Feb 2024 614th OCNeve 620 92 17 Jun 2024 614th themoonisacheese 620 92 25 Feb 2025 614th BabySharkHi 620 92 22 Apr 2025 614th arjunarya1 620 92 28 Aug 2025 614th TJK-S 620 92 4 days ago 625th Bananapants22 613 93 4 Sep 2022 625th jaxmattfair 🇺🇸 613 93 10 Jan 2023 625th fenix-bear 613 93 18 Nov 2023 625th epic-programmer-guy 613 93 22 Dec 2023 625th brimstonetrader 613 93 18 Nov 2024 625th Aquateraneal 613 93 11 Aug 2025 631st atazzam 🇺🇸 606 94 18 May 2022 631st rohangpta 606 94 8 Aug 2022 631st shinylego 606 94 14 Sep 2022 631st sgaltair 606 94 4 Nov 2022 631st TotoAJ 606 94 15 Dec 2023 631st Gusic06 606 94 6 May 2024 631st kyleyarwood 606 94 6 Oct 2024 631st jj0786-cell 606 94 1 Apr 2025 631st griffinschreiber 606 94 1 Apr 2025 640th felixcroc 600 95 30 Mar 2023 640th Pyro569 600 95 4 Jul 2023 640th rm-rf-innocence 600 95 19 Dec 2023 640th Bit125 600 95 30 Jan 2024 640th aalec 600 95 25 Apr 2024 640th strogor 600 95 13 Jun 2025 640th cthierfelder 🇲🇨 600 95 17 Jul 2025 647th karhuthebear 594 96 9 May 2022 647th qwjhvbxi 594 96 6 Feb 2024 647th alfonsoalves 594 96 21 Jul 2024 647th jeff-re 594 96 1 Apr 2025 651st a-penton 588 97 22 Sep 2022 651st jrbud 588 97 6 Jan 2024 651st befoster 588 97 22 Feb 2024 651st joshua-el-samalouti 🇩🇪 588 97 26 May 2024 651st luca1339 588 97 10 Jun 2024 656th lukemalek 582 98 10 Oct 2022 656th UltimateGuy0987 582 98 14 Oct 2022 656th TheLazySquid 582 98 20 Dec 2022 656th StronkCheese 🇺🇸 582 98 13 Mar 2023 656th Anthony-Williams-06 582 98 17 Oct 2023 656th NoneTheFewer 582 98 17 May 2024 656th abcdhhhh 582 98 27 Aug 2024 656th OSYCh314 🇦🇺 582 98 16 Nov 2024 656th cole-wilson 582 98 9 Dec 2024 656th Akilles1 582 98 15 May 2025 666th LukeRichardson-dev 576 99 12 May 2022 666th Tagfox 576 99 18 Jul 2022 666th gabrielsqw 576 99 24 Oct 2023 666th sciencedjinn 576 99 8 Nov 2024 666th MrNiknoc 576 99 15 Jun 2025 671st OppositeShark 570 100 19 Jul 2022 671st NOS4A5I 570 100 10 Jan 2023 671st lomarbrick 570 100 16 May 2023 671st karlaacastro44 570 100 5 May 2025 675th markus-rekdal 564 101 10 May 2022 First Prev 601–675 of 786 Next Last
