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 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 Submitted 824th roupiq 🇵🇱 696 99 61ms 8 Jun 2024 827th xorraxrax 693 68 12ms 19 Oct 2019 827th NewDefectus 🇮🇱 693 68 11ms 1 Nov 2020 827th ydevor 🇮🇱 693 68 10ms 26 Nov 2020 827th jacklynnepenick 693 68 51ms 17 Aug 2021 827th aposteriorist 🇨🇦 693 68 10ms 6 Feb 2022 827th PowerR0 693 68 10ms 25 Aug 2022 827th SB-945 693 68 17ms 31 Mar 2024 827th Troon 693 68 10ms 11 Feb 2025 835th sisyphus-ppcg 🇦🇺 692 43 2ms 3 Nov 2020 835th pandapawskat 692 43 3ms 20 Sep 2021 835th stefangimmillaro 692 43 2ms 23 Apr 2022 838th o0lit3 🇺🇸 692 50 11ms 19 Apr 2021 838th armin-k1 692 50 9ms 8 Sep 2021 840th Alex-x90 🇺🇸 692 76 2ms 3 Dec 2022 841st anter69 🇭🇺 691 55 10 Mar 2025 842nd GrayJoKing 🇦🇺 691 61 150ms 13 Mar 2022 843rd btnlq 691 63 4ms 15 Jul 2023 844th SirBogman 🇺🇸 690 63 405ms 15 Jan 2024 844th GolfingSuccess 🇬🇷 690 63 336ms 30 Jan 2024 846th inventshah 690 70 3ms 9 Sep 2022 847th labster 689 45 23 Feb 2018 848th JDiLenarda 🇫🇷 689 61 1,211ms 9 Oct 2020 849th jared-hughes 689 100 53ms 20 Jul 2022 850th gnuvince 688 32 10ms 2 Aug 2024 850th codereport 🇨🇦 688 32 3ms 21 Apr 2025 852nd marshallward 🇺🇸 688 81 41ms 2 Sep 2022 853rd JayXon 🇺🇸 688 102 7ms 15 Mar 2023 854th PatrickStephansen 🇿🇦 686 72 13ms 3 Nov 2020 854th KatieLG 🇬🇧 686 72 9ms 16 Apr 2021 854th neihousaigaai 686 72 10ms 18 Apr 2021 854th two-bad 🇬🇧 686 72 11ms 25 Feb 2024 858th MeWhenI 🇻🇦 686 75 20 Jun 2022 859th rustyflamingo 685 49 22 Sep 2022 859th antimon2 🇯🇵 685 49 15 Oct 2022 859th alemelis 685 49 1 Mar 2023 859th HPWiz 🇳🇿 685 49 9 Mar 2023 859th ovs-code 🇩🇪 685 49 24 Oct 2023 859th MarcMush 🇫🇷 685 49 5 Jan 2024 859th DialFrost 🇸🇬 685 49 5 Jan 2024 859th twolfive 685 49 5 Oct 2024 867th galloj 🇨🇿 684 107 1ms 28 Aug 2022 868th j-Ewan 683 40 22 Feb 2022 869th Espiobest 683 69 19ms 26 Feb 2021 869th cbondurant 683 69 10ms 10 May 2021 869th hellwue 683 69 10ms 8 Feb 2023 869th Vaekor 683 69 10ms 9 Jul 2023 869th jatloe 683 69 107ms 27 Sep 2024 874th sean-niemann 🇺🇸 683 77 2ms 29 Nov 2022 875th DialFrost 🇸🇬 682 93 44ms 16 Feb 2025 876th MeWhenI 🇻🇦 682 101 59ms 8 May 2022 876th janbehrens 🇩🇪 682 101 65ms 26 Nov 2023 878th sisyphus-ppcg 🇦🇺 681 67 4ms 2 Jul 2023 878th targrik 681 67 6ms 17 Jul 2025 880th retrohun 681 191 11ms 27 Dec 2022 881st m-tkach 🇺🇦 680 64 376ms 30 Jan 2024 882nd Yewzir 🇧🇪 680 87 2ms 21 Jan 2024 882nd rucin93 🇵🇱 680 87 22 Apr 2025 884th MeWhenI 🇻🇦 679 62 162ms 11 Nov 2021 885th Irratix 🇳🇱 678 56 25 Mar 2021 885th emgordon154 678 56 18 Nov 2024 887th emplv 🇱🇻 678 63 144ms 17 Jul 2025 888th didion0 🇺🇸 677 73 13ms 22 Apr 2021 888th itsh01 677 73 14ms 16 Aug 2021 888th c0d3-4-F00d 🇩🇪 677 73 10ms 5 Jan 2022 888th DaCuteRaccoon 677 73 11ms 30 Nov 2022 888th inventshah 677 73 15ms 28 Jan 2023 888th snoozingnewt 🇺🇸 677 73 13ms 1 Sep 2024 894th primo-ppcg 🇹🇭 676 105 2ms 3 Oct 2020 895th Attero 🇸🇪 675 46 4 May 2020 896th primo-ppcg 🇹🇭 675 57 4ms 27 Apr 2023 896th GrayJoKing 🇦🇺 675 57 4ms 20 Aug 2023 896th emgordon154 675 57 4ms 10 Jan 2025 896th sean-niemann 🇺🇸 675 57 4ms 21 Apr 2025 896th kg583 🇺🇸 675 57 4ms 26 days ago First Prev 826–900 of 3,052 Next Last