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 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 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 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 Knight 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 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 Knight 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 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 819th Troon 693 68 11 Feb 2025 827th sisyphus-ppcg 🇦🇺 692 43 3 Nov 2020 827th pandapawskat 692 43 20 Sep 2021 827th stefangimmillaro 692 43 23 Apr 2022 830th o0lit3 🇺🇸 692 50 19 Apr 2021 830th armin-k1 692 50 8 Sep 2021 832nd Alex-x90 🇺🇸 692 76 3 Dec 2022 833rd anter69 🇭🇺 690 55 10 Mar 2025 834th SirBogman 🇺🇸 690 63 15 Jan 2024 834th GolfingSuccess 🇬🇷 690 63 30 Jan 2024 836th labster 689 45 23 Feb 2018 837th JDiLenarda 🇫🇷 689 61 9 Oct 2020 837th GrayJoKing 🇦🇺 689 61 13 Mar 2022 839th btnlq 689 63 15 Jul 2023 840th inventshah 689 70 9 Sep 2022 841st gnuvince 688 32 2 Aug 2024 841st codereport 🇨🇦 688 32 21 Apr 2025 843rd jared-hughes 688 100 20 Jul 2022 844th marshallward 🇺🇸 687 81 2 Sep 2022 845th JayXon 🇺🇸 687 102 15 Mar 2023 846th PatrickStephansen 🇿🇦 686 72 3 Nov 2020 846th KatieLG 🇬🇧 686 72 16 Apr 2021 846th neihousaigaai 686 72 18 Apr 2021 846th two-bad 🇬🇧 686 72 25 Feb 2024 850th MeWhenI 🇻🇦 686 75 20 Jun 2022 851st rustyflamingo 685 49 22 Sep 2022 851st antimon2 🇯🇵 685 49 15 Oct 2022 851st alemelis 685 49 1 Mar 2023 851st HPWiz 🇳🇿 685 49 9 Mar 2023 851st ovs-code 🇩🇪 685 49 24 Oct 2023 851st MarcMush 🇫🇷 685 49 5 Jan 2024 851st DialFrost 🇸🇬 685 49 5 Jan 2024 851st twolfive 685 49 5 Oct 2024 859th j-Ewan 683 40 22 Feb 2022 860th Espiobest 683 69 26 Feb 2021 860th cbondurant 683 69 10 May 2021 860th hellwue 683 69 8 Feb 2023 860th Vaekor 683 69 9 Jul 2023 860th jatloe 683 69 27 Sep 2024 865th sean-niemann 🇺🇸 683 77 29 Nov 2022 866th MeWhenI 🇻🇦 682 101 8 May 2022 866th janbehrens 🇩🇪 682 101 26 Nov 2023 868th galloj 🇨🇿 682 107 28 Aug 2022 869th sisyphus-ppcg 🇦🇺 681 67 2 Jul 2023 869th targrik 681 67 23 days ago 871st Yewzir 🇧🇪 680 87 21 Jan 2024 871st rucin93 🇵🇱 680 87 22 Apr 2025 873rd m-tkach 🇺🇦 679 64 30 Jan 2024 874th inventshah 679 146 17 Jun 2022 875th Irratix 🇳🇱 678 56 25 Mar 2021 875th emgordon154 678 56 18 Nov 2024 877th MeWhenI 🇻🇦 678 62 11 Nov 2021 878th emplv 🇱🇻 678 63 22 days ago 879th DialFrost 🇸🇬 678 93 16 Feb 2025 880th didion0 🇺🇸 677 73 22 Apr 2021 880th itsh01 677 73 16 Aug 2021 880th c0d3-4-F00d 🇩🇪 677 73 5 Jan 2022 880th DaCuteRaccoon 677 73 30 Nov 2022 880th inventshah 677 73 28 Jan 2023 880th snoozingnewt 🇺🇸 677 73 1 Sep 2024 886th primo-ppcg 🇹🇭 675 57 27 Apr 2023 886th GrayJoKing 🇦🇺 675 57 20 Aug 2023 886th emgordon154 675 57 10 Jan 2025 886th sean-niemann 🇺🇸 675 57 21 Apr 2025 890th primo-ppcg 🇹🇭 675 105 3 Oct 2020 891st Attero 🇸🇪 674 46 4 May 2020 892nd marcin7Cd 674 78 17 May 2020 892nd lynn 674 78 2 Oct 2021 892nd Steffan153 🇫🇮 674 78 28 Jan 2023 895th annaproxy 674 80 5 May 2022 895th Yewzir 🇧🇪 674 80 8 May 2023 895th DialFrost 🇸🇬 674 80 26 Dec 2024 898th Irratix 🇳🇱 674 147 11 Dec 2021 899th gilufin 673 70 23 May 2021 899th kellantech 673 70 3 Jun 2023 Prev 826–900 of 2,911 Next