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 825th codereport 🇨🇦 688 32 21 Apr 2025 827th jared-hughes 688 100 20 Jul 2022 828th marshallward 🇺🇸 687 81 2 Sep 2022 829th JayXon 🇺🇸 687 102 15 Mar 2023 830th PatrickStephansen 🇿🇦 686 72 3 Nov 2020 830th KatieLG 🇬🇧 686 72 16 Apr 2021 830th neihousaigaai 686 72 18 Apr 2021 830th two-bad 🇬🇧 686 72 25 Feb 2024 834th rustyflamingo 685 49 22 Sep 2022 834th antimon2 🇯🇵 685 49 15 Oct 2022 834th alemelis 685 49 1 Mar 2023 834th HPWiz 🇳🇿 685 49 9 Mar 2023 834th ovs-code 🇩🇪 685 49 24 Oct 2023 834th MarcMush 🇫🇷 685 49 5 Jan 2024 834th DialFrost 🇸🇬 685 49 5 Jan 2024 834th twolfive 685 49 5 Oct 2024 842nd MeWhenI 🇻🇦 685 75 20 Jun 2022 843rd j-Ewan 683 40 22 Feb 2022 844th Espiobest 683 69 26 Feb 2021 844th cbondurant 683 69 10 May 2021 844th hellwue 683 69 8 Feb 2023 844th Vaekor 683 69 9 Jul 2023 844th jatloe 683 69 27 Sep 2024 844th Flekay 683 69 20 days ago 850th sean-niemann 🇺🇸 683 77 29 Nov 2022 851st MeWhenI 🇻🇦 682 101 8 May 2022 851st janbehrens 🇩🇪 682 101 26 Nov 2023 853rd sisyphus-ppcg 🇦🇺 681 67 2 Jul 2023 854th galloj 🇨🇿 681 107 28 Aug 2022 855th Yewzir 🇧🇪 680 87 21 Jan 2024 855th rucin93 🇵🇱 680 87 22 Apr 2025 857th m-tkach 🇺🇦 679 64 30 Jan 2024 858th Irratix 🇳🇱 678 56 25 Mar 2021 858th emgordon154 678 56 18 Nov 2024 860th MeWhenI 🇻🇦 678 62 11 Nov 2021 861st DialFrost 🇸🇬 678 93 16 Feb 2025 862nd inventshah 678 146 17 Jun 2022 863rd didion0 🇺🇸 677 73 22 Apr 2021 863rd itsh01 677 73 16 Aug 2021 863rd c0d3-4-F00d 🇩🇪 677 73 5 Jan 2022 863rd DaCuteRaccoon 677 73 30 Nov 2022 863rd inventshah 677 73 28 Jan 2023 863rd snoozingnewt 🇺🇸 677 73 1 Sep 2024 869th primo-ppcg 🇹🇭 675 57 27 Apr 2023 869th GrayJoKing 🇦🇺 675 57 20 Aug 2023 869th emgordon154 675 57 10 Jan 2025 869th sean-niemann 🇺🇸 675 57 21 Apr 2025 873rd primo-ppcg 🇹🇭 675 105 3 Oct 2020 874th Attero 🇸🇪 674 46 4 May 2020 875th marcin7Cd 674 78 17 May 2020 875th lynn 674 78 2 Oct 2021 875th Steffan153 🇫🇮 674 78 28 Jan 2023 878th annaproxy 674 80 5 May 2022 878th Yewzir 🇧🇪 674 80 8 May 2023 878th DialFrost 🇸🇬 674 80 26 Dec 2024 881st Irratix 🇳🇱 674 147 11 Dec 2021 882nd gilufin 673 70 23 May 2021 882nd kellantech 673 70 3 Jun 2023 882nd 2011-Chan-Ethan 673 70 12 Jul 2023 882nd Dataen 673 70 5 Jan 2024 886th GrayJoKing 🇦🇺 672 88 9 Oct 2023 887th HumanoidCPU 670 73 3 May 2024 888th janbehrens 🇩🇪 669 72 26 Nov 2023 889th GrayJoKing 🇦🇺 668 65 26 Jul 2023 889th MeWhenI 🇻🇦 668 65 17 Jan 2024 891st weliveinhell 🇭🇹 668 74 3 Sep 2023 891st Lv0Sys 🇵🇱 668 74 31 May 2025 893rd rucin93 🇵🇱 667 64 6 Sep 2024 894th jared-hughes 667 76 6 Mar 2022 895th inventshah 667 83 3 Nov 2022 896th m-tkach 🇺🇦 665 79 9 Mar 2023 896th ovs-code 🇩🇪 665 79 24 Mar 2024 896th dokutan 665 79 1 May 2024 896th xsot 🇸🇬 665 79 23 May 2024 896th DialFrost 🇸🇬 665 79 17 Dec 2024 Prev 826–900 of 2,883 Next