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 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 Mandelbrot 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 Mandelbrot 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 749th 4hg 🇺🇸 848 55 24 Aug 2022 749th DialFrost 🇸🇬 848 55 1 Jan 2023 749th error256 848 55 4 May 2024 754th JayXon 🇺🇸 847 56 9 May 2022 755th Re-Adventures 🇮🇳 847 116 16 Jul 2023 755th Yewzir 🇧🇪 847 116 7 Feb 2024 757th azka1368 847 138 23 Nov 2023 757th Schmitt-Very-Cool 847 138 19 Jul 2024 759th MeWhenI 🇻🇦 846 26 25 Aug 2022 759th AlephSquirrel 846 26 6 Jan 2023 759th ovs-code 🇩🇪 846 26 5 May 2024 759th saito-ta 🇯🇵 846 26 12 Dec 2024 763rd mossiegoat 846 66 5 days ago 764th the-zammers 846 68 2 Oct 2023 765th mtirado1 846 74 24 Dec 2022 765th Betuaredead 846 74 6 Jan 2023 765th KatieLG 🇬🇧 846 74 15 Jan 2023 765th bwat2 846 74 31 Mar 2023 765th stackotter 846 74 29 May 2023 765th ovs-code 🇩🇪 846 74 17 Apr 2024 765th madeforlosers 846 74 21 Nov 2024 772nd randolchance 845 63 8 Jan 2023 772nd CatsAreFluffy 845 63 18 Feb 2023 772nd amiralitaheri 845 63 23 Feb 2023 772nd RuyiLi 845 63 1 Apr 2023 772nd TaserTheFox 🇺🇸 845 63 25 May 2023 772nd pfysches-boop 845 63 6 Aug 2023 772nd mhgockel 845 63 19 Aug 2023 772nd NickTheEASDude 🇺🇸 845 63 18 Jan 2024 772nd 823126 845 63 14 Nov 2024 772nd Palladium02 845 63 21 days ago 782nd NewDefectus 🇮🇱 844 73 6 May 2022 782nd inventshah 844 73 12 Jun 2022 782nd Natanaelel 🇸🇪 844 73 15 Jun 2022 782nd 5quiwyrm 844 73 19 Oct 2022 782nd Herbert00709 🇵🇱 844 73 22 Dec 2023 782nd LorenzoDeGaspari 844 73 27 May 2024 788th bschorno 844 92 12 Oct 2022 788th kellantech 844 92 4 Jul 2023 788th Mezzofloat 844 92 26 Aug 2023 788th Maximizer02 844 92 1 Oct 2023 788th michelebastione 🇮🇹 844 92 22 Dec 2023 788th madeforlosers 844 92 21 Nov 2024 794th jared-hughes 844 100 20 Jul 2022 794th ZakkkkAttackkkk 🇵🇭 844 100 10 Aug 2022 794th Walter225 844 100 25 Jul 2023 797th Natanaelel 🇸🇪 843 57 17 Jan 2024 797th Kacarott 🇦🇺 843 57 10 Sep 2024 799th retrohun 843 64 6 Nov 2022 799th Re-Adventures 🇮🇳 843 64 7 Nov 2022 799th stellartux 843 64 26 Dec 2023 799th bac0id 843 64 29 Jun 2024 799th snoozingnewt 🇺🇸 843 64 1 Sep 2024 804th DialFrost 🇸🇬 843 86 15 Dec 2024 805th Shanethegamer 🇺🇸 843 98 26 Oct 2022 805th emgordon154 843 98 18 Feb 2025 807th krcs 🇵🇱 841 53 9 May 2022 807th ryanlanegit 841 53 19 Jun 2022 807th sisyphus-ppcg 🇦🇺 841 53 15 Aug 2022 810th DialFrost 🇸🇬 841 66 7 Apr 2025 811th Shanethegamer 🇺🇸 841 82 15 May 2023 812th lynn 841 96 11 Jul 2023 813th Smetalo 841 139 25 Aug 2022 813th ToxicP1e 841 139 2 Mar 2023 813th TheZwierzLF 🇵🇱 841 139 2 days ago 816th janAkali 🇷🇺 840 77 12 Feb 2025 817th raszpi 🇭🇺 838 77 1 Sep 2023 818th error256 838 81 13 Sep 2024 819th Codsilla 🇨🇦 837 51 1 Jul 2022 820th frankgraziano 836 66 20 Apr 2025 821st SirBogman 🇺🇸 836 89 4 May 2022 822nd eshilo-draper 835 75 6 Sep 2022 823rd Andriamanitra 🇫🇮 835 83 17 Apr 2023 823rd Natanaelel 🇸🇪 835 83 8 Jul 2023 825th Smetalo 835 93 25 Aug 2022 Prev 751–825 of 3,055 Next