Happy Numbers 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 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Minesweeper 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 822nd KrausRaus 🇺🇸 696 71 10ms 20 days ago 827th msbranicky 696 74 75ms 14 Aug 2023 828th Steffan153 🇫🇮 696 99 59ms 28 Jan 2023 828th ovs-code 🇩🇪 696 99 62ms 3 Jun 2024 828th roupiq 🇵🇱 696 99 61ms 8 Jun 2024 831st xorraxrax 693 68 12ms 19 Oct 2019 831st NewDefectus 🇮🇱 693 68 11ms 1 Nov 2020 831st ydevor 🇮🇱 693 68 10ms 26 Nov 2020 831st jacklynnepenick 693 68 51ms 17 Aug 2021 831st aposteriorist 🇨🇦 693 68 10ms 6 Feb 2022 831st PowerR0 693 68 10ms 25 Aug 2022 831st SB-945 693 68 17ms 31 Mar 2024 831st Troon 693 68 10ms 11 Feb 2025 839th sisyphus-ppcg 🇦🇺 692 43 2ms 3 Nov 2020 839th pandapawskat 692 43 3ms 20 Sep 2021 839th stefangimmillaro 692 43 2ms 23 Apr 2022 842nd o0lit3 🇺🇸 692 50 11ms 19 Apr 2021 842nd armin-k1 692 50 9ms 8 Sep 2021 844th Alex-x90 🇺🇸 692 76 2ms 3 Dec 2022 845th anter69 🇭🇺 691 55 1,011ms 10 Mar 2025 846th GrayJoKing 🇦🇺 691 61 115ms 13 Mar 2022 847th btnlq 691 63 4ms 15 Jul 2023 848th SirBogman 🇺🇸 690 63 405ms 15 Jan 2024 848th GolfingSuccess 🇬🇷 690 63 336ms 30 Jan 2024 850th inventshah 690 70 3ms 9 Sep 2022 851st labster 689 45 130ms 23 Feb 2018 852nd JDiLenarda 🇫🇷 689 61 1,211ms 9 Oct 2020 853rd jared-hughes 689 100 53ms 20 Jul 2022 854th gnuvince 688 32 9ms 2 Aug 2024 854th codereport 🇨🇦 688 32 3ms 21 Apr 2025 856th marshallward 🇺🇸 688 81 41ms 2 Sep 2022 857th JayXon 🇺🇸 688 102 7ms 15 Mar 2023 858th PatrickStephansen 🇿🇦 686 72 13ms 3 Nov 2020 858th KatieLG 🇬🇧 686 72 9ms 16 Apr 2021 858th neihousaigaai 686 72 10ms 18 Apr 2021 858th two-bad 🇬🇧 686 72 11ms 25 Feb 2024 862nd MeWhenI 🇻🇦 686 75 40ms 20 Jun 2022 863rd rustyflamingo 685 49 551ms 22 Sep 2022 863rd antimon2 🇯🇵 685 49 565ms 15 Oct 2022 863rd alemelis 685 49 539ms 1 Mar 2023 863rd HPWiz 🇳🇿 685 49 554ms 9 Mar 2023 863rd ovs-code 🇩🇪 685 49 562ms 24 Oct 2023 863rd MarcMush 🇫🇷 685 49 589ms 5 Jan 2024 863rd DialFrost 🇸🇬 685 49 541ms 5 Jan 2024 863rd twolfive 685 49 552ms 5 Oct 2024 871st DialFrost 🇸🇬 684 93 40ms 16 Feb 2025 872nd galloj 🇨🇿 684 107 1ms 28 Aug 2022 873rd j-Ewan 683 40 33ms 22 Feb 2022 874th Espiobest 683 69 19ms 26 Feb 2021 874th cbondurant 683 69 10ms 10 May 2021 874th hellwue 683 69 10ms 8 Feb 2023 874th Vaekor 683 69 10ms 9 Jul 2023 874th jatloe 683 69 107ms 27 Sep 2024 879th sean-niemann 🇺🇸 683 77 2ms 29 Nov 2022 880th MeWhenI 🇻🇦 682 101 59ms 8 May 2022 880th janbehrens 🇩🇪 682 101 65ms 26 Nov 2023 882nd retrohun 682 191 11ms 27 Dec 2022 883rd sisyphus-ppcg 🇦🇺 681 67 4ms 2 Jul 2023 883rd targrik 681 67 4ms 17 Jul 2025 885th m-tkach 🇺🇦 680 64 376ms 30 Jan 2024 886th Yewzir 🇧🇪 680 87 2ms 21 Jan 2024 886th rucin93 🇵🇱 680 87 2ms 22 Apr 2025 888th MeWhenI 🇻🇦 679 62 114ms 11 Nov 2021 889th Irratix 🇳🇱 678 56 1,042ms 25 Mar 2021 889th emgordon154 678 56 911ms 18 Nov 2024 891st emplv 🇱🇻 678 63 144ms 17 Jul 2025 892nd didion0 🇺🇸 677 73 13ms 22 Apr 2021 892nd itsh01 677 73 14ms 16 Aug 2021 892nd c0d3-4-F00d 🇩🇪 677 73 10ms 5 Jan 2022 892nd DaCuteRaccoon 677 73 11ms 30 Nov 2022 892nd inventshah 677 73 15ms 28 Jan 2023 892nd snoozingnewt 🇺🇸 677 73 13ms 1 Sep 2024 898th primo-ppcg 🇹🇭 676 105 2ms 3 Oct 2020 899th Attero 🇸🇪 675 46 132ms 4 May 2020 900th primo-ppcg 🇹🇭 675 57 4ms 27 Apr 2023 First Prev 826–900 of 3,064 Next Last