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 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 826th marshallward 🇺🇸 687 81 2 Sep 2022 827th JayXon 🇺🇸 687 102 15 Mar 2023 828th PatrickStephansen 🇿🇦 686 72 3 Nov 2020 828th KatieLG 🇬🇧 686 72 16 Apr 2021 828th neihousaigaai 686 72 18 Apr 2021 828th two-bad 🇬🇧 686 72 25 Feb 2024 832nd rustyflamingo 685 49 22 Sep 2022 832nd antimon2 🇯🇵 685 49 15 Oct 2022 832nd alemelis 685 49 1 Mar 2023 832nd HPWiz 🇳🇿 685 49 9 Mar 2023 832nd ovs-code 🇩🇪 685 49 24 Oct 2023 832nd MarcMush 🇫🇷 685 49 5 Jan 2024 832nd DialFrost 🇸🇬 685 49 5 Jan 2024 832nd twolfive 685 49 5 Oct 2024 840th MeWhenI 🇻🇦 685 75 20 Jun 2022 841st j-Ewan 683 40 22 Feb 2022 842nd Espiobest 683 69 26 Feb 2021 842nd cbondurant 683 69 10 May 2021 842nd hellwue 683 69 8 Feb 2023 842nd Vaekor 683 69 9 Jul 2023 842nd jatloe 683 69 27 Sep 2024 842nd Flekay 683 69 14 days ago 848th sean-niemann 🇺🇸 683 77 29 Nov 2022 849th sisyphus-ppcg 🇦🇺 681 67 2 Jul 2023 850th MeWhenI 🇻🇦 681 101 8 May 2022 850th janbehrens 🇩🇪 681 101 26 Nov 2023 852nd galloj 🇨🇿 681 107 28 Aug 2022 853rd Yewzir 🇧🇪 680 87 21 Jan 2024 853rd rucin93 🇵🇱 680 87 22 Apr 2025 855th m-tkach 🇺🇦 679 64 30 Jan 2024 856th Irratix 🇳🇱 678 56 25 Mar 2021 856th emgordon154 678 56 18 Nov 2024 858th MeWhenI 🇻🇦 678 62 11 Nov 2021 859th DialFrost 🇸🇬 678 93 16 Feb 2025 860th inventshah 678 146 17 Jun 2022 861st didion0 🇺🇸 677 73 22 Apr 2021 861st itsh01 677 73 16 Aug 2021 861st c0d3-4-F00d 🇩🇪 677 73 5 Jan 2022 861st DaCuteRaccoon 677 73 30 Nov 2022 861st inventshah 677 73 28 Jan 2023 861st snoozingnewt 🇺🇸 677 73 1 Sep 2024 867th primo-ppcg 🇹🇭 675 57 27 Apr 2023 867th GrayJoKing 🇦🇺 675 57 20 Aug 2023 867th emgordon154 675 57 10 Jan 2025 867th sean-niemann 🇺🇸 675 57 21 Apr 2025 871st primo-ppcg 🇹🇭 675 105 3 Oct 2020 872nd Attero 🇸🇪 674 46 4 May 2020 873rd marcin7Cd 674 78 17 May 2020 873rd lynn 674 78 2 Oct 2021 873rd Steffan153 🇫🇮 674 78 28 Jan 2023 876th annaproxy 674 80 5 May 2022 876th Yewzir 🇧🇪 674 80 8 May 2023 876th DialFrost 🇸🇬 674 80 26 Dec 2024 879th Irratix 🇳🇱 674 147 11 Dec 2021 880th gilufin 673 70 23 May 2021 880th kellantech 673 70 3 Jun 2023 880th 2011-Chan-Ethan 673 70 12 Jul 2023 880th Dataen 673 70 5 Jan 2024 884th GrayJoKing 🇦🇺 672 88 9 Oct 2023 885th HumanoidCPU 670 73 3 May 2024 886th janbehrens 🇩🇪 669 72 26 Nov 2023 887th GrayJoKing 🇦🇺 668 65 26 Jul 2023 887th MeWhenI 🇻🇦 668 65 17 Jan 2024 889th weliveinhell 🇭🇹 668 74 3 Sep 2023 889th Lv0Sys 🇵🇱 668 74 31 May 2025 891st rucin93 🇵🇱 667 64 6 Sep 2024 892nd jared-hughes 667 76 6 Mar 2022 893rd inventshah 667 83 3 Nov 2022 894th m-tkach 🇺🇦 665 79 9 Mar 2023 894th ovs-code 🇩🇪 665 79 24 Mar 2024 894th dokutan 665 79 1 May 2024 894th xsot 🇸🇬 665 79 23 May 2024 894th DialFrost 🇸🇬 665 79 17 Dec 2024 899th Shanethegamer 🇺🇸 665 89 9 Oct 2023 899th MeWhenI 🇻🇦 665 89 10 Oct 2023 Prev 826–900 of 2,879 Next