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 676th bac0id 748 92 23 Feb 2024 676th dokutan 748 92 7 Apr 2024 678th DialFrost 🇸🇬 743 114 26 Dec 2024 679th MeWhenI 🇻🇦 740 71 22 Aug 2023 680th xsot 🇸🇬 740 93 23 May 2024 681st Shanethegamer 🇺🇸 739 73 12 May 2023 681st janbehrens 🇩🇪 739 73 26 Nov 2023 683rd emgordon154 738 31 11 Sep 2024 684th dan-simon 738 42 28 Dec 2017 684th yokasuretsu 738 42 27 Jun 2018 686th elgan65536 738 85 22 Sep 2023 687th Frank-Buss 738 93 29 Aug 2020 688th emgordon154 737 58 20 Nov 2024 688th DialFrost 🇸🇬 737 58 25 Dec 2024 690th rambox11 737 67 2 Apr 2018 690th ETHproductions 🇺🇸 737 67 14 Apr 2018 690th frobinsonj 737 67 28 Jun 2018 690th dee-gomma 737 67 27 Mar 2019 690th elisherer 🇮🇱 737 67 23 Dec 2019 690th ArmaanAS 737 67 8 Mar 2021 696th lynn 737 93 12 Jul 2023 697th sisyphus-ppcg 🇦🇺 737 95 14 Mar 2023 697th Lydxn 🇨🇦 737 95 14 Mar 2023 699th Steffan153 🇫🇮 737 99 28 Jan 2023 699th pardouin 🇫🇷 737 99 21 Sep 2024 699th sean-niemann 🇺🇸 737 99 9 May 2025 702nd dokutan 736 59 14 Apr 2024 703rd trist224 🇫🇷 736 64 15 Nov 2022 704th MeWhenI 🇻🇦 734 92 13 Jul 2021 705th Shanethegamer 🇺🇸 733 30 13 Jan 2022 706th edsrzf 🇳🇿 733 86 30 Dec 2024 707th MeWhenI 🇻🇦 732 76 16 May 2023 708th SirBogman 🇺🇸 730 45 7 Jan 2024 709th treeowl 729 79 27 Feb 2019 709th user189032 729 79 29 May 2019 709th cbrt-x 729 79 15 Sep 2023 712th prplz 🇦🇺 729 86 30 Apr 2022 712th pardouin 🇫🇷 729 86 24 Aug 2024 714th dokutan 729 136 22 Jan 2024 715th NewDefectus 🇮🇱 727 68 16 Dec 2021 716th Irratix 🇳🇱 726 41 1 Nov 2020 716th primo-ppcg 🇹🇭 726 41 2 Nov 2020 716th GrayJoKing 🇦🇺 726 41 27 Nov 2020 716th KatieLG 🇬🇧 726 41 9 Dec 2020 716th msbranicky 726 41 27 Jul 2023 716th dokutan 726 41 11 Nov 2023 716th AlephSquirrel 726 41 27 Jan 2025 723rd emplv 🇱🇻 726 93 29 Jun 2022 724th ZakkkkAttackkkk 🇵🇭 725 65 21 Dec 2021 724th bob-th 725 65 5 Aug 2022 724th btjones0 725 65 22 Nov 2022 724th falsidge 725 65 21 Jun 2023 724th snoozingnewt 🇺🇸 725 65 3 Oct 2023 724th bizy-coder 725 65 13 Aug 2024 730th msbranicky 724 60 17 Jan 2024 730th JunkIce 724 60 23 Feb 2025 732nd dokutan 723 75 16 days ago 733rd dokutan 723 90 12 Feb 2025 734th ovs-code 🇩🇪 722 95 10 Jan 2023 735th phdphil 721 43 9 Apr 2018 736th lynn 721 87 7 Jul 2024 736th emgordon154 721 87 18 Feb 2025 736th edsrzf 🇳🇿 721 87 4 Mar 2025 736th DialFrost 🇸🇬 721 87 4 Apr 2025 736th acotis 721 87 15 Apr 2025 736th ovs-code 🇩🇪 721 87 20 Apr 2025 736th sean-niemann 🇺🇸 721 87 6 Jun 2025 743rd RussellEmerine 720 80 30 Nov 2019 744th yzhs 🇩🇪 719 38 21 Jun 2022 745th retrohun 719 69 3 Nov 2024 746th msbranicky 718 185 29 Aug 2023 747th Bubbler-4 717 49 13 Sep 2023 747th ovs-code 🇩🇪 717 49 13 Sep 2023 749th GrayJoKing 🇦🇺 716 53 13 Sep 2021 749th primo-ppcg 🇹🇭 716 53 22 Sep 2021 Prev 676–750 of 2,910 Next