Collatz in all languages 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 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 Topological Sort 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 751st Andriamanitra 🇫🇮 858 67 26 Apr 2023 752nd Steffan153 🇫🇮 858 78 4 Feb 2023 753rd 5quiwyrm 857 52 4 Sep 2022 753rd MeWhenI 🇻🇦 857 52 28 Jan 2023 753rd Feniske 🇫🇷 857 52 7 Nov 2023 753rd dcgjb 857 52 29 Jan 2024 753rd JPRuskin 🇬🇧 857 52 7 Apr 2025 753rd IISResetMe 857 52 7 Apr 2025 753rd Ripick 857 52 1 Jun 2025 760th MeWhenI 🇻🇦 857 145 28 Mar 2025 761st JRaspass 🇬🇧 856 41 4 May 2022 761st SirBogman 🇺🇸 856 41 4 May 2022 761st Natanaelel 🇸🇪 856 41 4 May 2022 764th GrayJoKing 🇦🇺 856 67 8 Feb 2025 765th jared-hughes 856 72 6 Jul 2022 765th Steffan153 🇫🇮 856 72 3 Jan 2023 765th MeWhenI 🇻🇦 856 72 7 May 2023 765th ListeriaM 856 72 22 Aug 2023 765th larcherMTT 856 72 5 Oct 2024 765th snyderek 🇺🇸 856 72 19 Feb 2025 765th 5quiwyrm 856 72 12 days ago 765th TeodorDyakov 🇧🇬 856 72 3 days ago 773rd MeWhenI 🇻🇦 856 81 23 May 2023 774th KatieLG 🇬🇧 855 115 25 Sep 2022 774th emgordon154 855 115 17 Jan 2025 776th ovs-code 🇩🇪 854 83 1 Jul 2024 777th DialFrost 🇸🇬 853 50 24 Oct 2023 778th 386asm 🇺🇸 853 86 9 Apr 2023 779th yeminghan2021 853 99 3 Feb 2025 780th eshilo-draper 853 137 4 Sep 2022 781st MeWhenI 🇻🇦 852 71 13 Dec 2022 782nd ovs-code 🇩🇪 852 85 11 Dec 2023 783rd eshilo-draper 852 91 4 Sep 2022 783rd ericlangedijk 🇸🇮 852 91 23 May 2023 783rd KatieLG 🇬🇧 852 91 30 Apr 2024 783rd Mikey-Beep 🇬🇧 852 91 3 Sep 2024 787th henrydukepickle 852 97 3 days ago 788th Shanethegamer 🇺🇸 851 83 4 May 2022 789th Frowny 850 38 5 May 2022 789th stackofbears 850 38 14 Mar 2025 791st o0lit3 🇺🇸 850 54 22 Jun 2023 791st Natanaelel 🇸🇪 850 54 10 Feb 2025 793rd Yewzir 🇧🇪 850 65 9 Oct 2023 793rd MeWhenI 🇻🇦 850 65 10 Oct 2023 795th typeswitch-dev 🇵🇹 850 75 22 Jul 2023 796th frosster 850 76 12 May 2023 796th kyleclaassen 850 76 20 May 2023 796th RockOfStone 850 76 17 Mar 2024 796th NickTheEASDude 🇺🇸 850 76 7 May 2024 796th Antibrain0 850 76 8 Nov 2024 801st MeWhenI 🇻🇦 850 92 10 Oct 2022 801st Betuaredead 850 92 5 Jan 2023 801st emgordon154 850 92 27 May 2025 804th Shanethegamer 🇺🇸 849 99 27 Apr 2023 805th SirBogman 🇺🇸 848 55 5 May 2022 805th xiBread 🇺🇸 848 55 6 May 2022 805th 4hg 🇺🇸 848 55 24 Aug 2022 805th DialFrost 🇸🇬 848 55 1 Jan 2023 805th error256 848 55 4 May 2024 810th mtirado1 848 74 24 Dec 2022 810th Betuaredead 848 74 6 Jan 2023 810th KatieLG 🇬🇧 848 74 15 Jan 2023 810th bwat2 848 74 31 Mar 2023 810th stackotter 848 74 29 May 2023 810th ovs-code 🇩🇪 848 74 17 Apr 2024 810th madeforlosers 848 74 21 Nov 2024 817th Re-Adventures 🇮🇳 848 116 16 Jul 2023 817th Yewzir 🇧🇪 848 116 7 Feb 2024 819th JayXon 🇺🇸 847 56 9 May 2022 820th azka1368 847 138 23 Nov 2023 821st MeWhenI 🇻🇦 846 26 25 Aug 2022 821st AlephSquirrel 846 26 6 Jan 2023 821st ovs-code 🇩🇪 846 26 5 May 2024 821st saito-ta 🇯🇵 846 26 12 Dec 2024 825th the-zammers 846 68 2 Oct 2023 Prev 751–825 of 3,165 Next