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 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 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 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 676th MeWhenI 🇻🇦 741 71 22 Aug 2023 677th lynn 741 93 12 Jul 2023 677th xsot 🇸🇬 741 93 23 May 2024 679th dan-simon 739 42 28 Dec 2017 679th yokasuretsu 739 42 27 Jun 2018 681st emgordon154 739 58 20 Nov 2024 681st DialFrost 🇸🇬 739 58 25 Dec 2024 683rd Shanethegamer 🇺🇸 739 73 12 May 2023 683rd janbehrens 🇩🇪 739 73 26 Nov 2023 685th elgan65536 739 85 22 Sep 2023 686th Frank-Buss 738 93 29 Aug 2020 687th sisyphus-ppcg 🇦🇺 738 95 14 Mar 2023 687th Lydxn 🇨🇦 738 95 14 Mar 2023 689th Steffan153 🇫🇮 738 99 28 Jan 2023 689th pardouin 🇫🇷 738 99 21 Sep 2024 689th sean-niemann 🇺🇸 738 99 9 May 2025 692nd rambox11 737 67 2 Apr 2018 692nd ETHproductions 🇺🇸 737 67 14 Apr 2018 692nd frobinsonj 737 67 28 Jun 2018 692nd dee-gomma 737 67 27 Mar 2019 692nd elisherer 🇮🇱 737 67 23 Dec 2019 692nd ArmaanAS 737 67 8 Mar 2021 698th edsrzf 🇳🇿 737 86 30 Dec 2024 699th MeWhenI 🇻🇦 737 92 13 Jul 2021 700th dokutan 736 59 14 Apr 2024 701st trist224 🇫🇷 736 64 15 Nov 2022 702nd Shanethegamer 🇺🇸 733 30 13 Jan 2022 703rd MeWhenI 🇻🇦 733 76 16 May 2023 704th SirBogman 🇺🇸 731 45 7 Jan 2024 705th treeowl 730 79 27 Feb 2019 705th user189032 730 79 29 May 2019 705th cbrt-x 730 79 15 Sep 2023 708th prplz 🇦🇺 730 86 30 Apr 2022 708th pardouin 🇫🇷 730 86 24 Aug 2024 710th emplv 🇱🇻 729 93 29 Jun 2022 711th NewDefectus 🇮🇱 727 68 16 Dec 2021 712th Irratix 🇳🇱 726 41 1 Nov 2020 712th primo-ppcg 🇹🇭 726 41 2 Nov 2020 712th GrayJoKing 🇦🇺 726 41 27 Nov 2020 712th KatieLG 🇬🇧 726 41 9 Dec 2020 712th msbranicky 726 41 27 Jul 2023 712th dokutan 726 41 11 Nov 2023 712th AlephSquirrel 726 41 27 Jan 2025 719th dokutan 726 90 12 Feb 2025 720th ZakkkkAttackkkk 🇵🇭 725 65 21 Dec 2021 720th bob-th 725 65 5 Aug 2022 720th btjones0 725 65 22 Nov 2022 720th falsidge 725 65 21 Jun 2023 720th snoozingnewt 🇺🇸 725 65 3 Oct 2023 720th bizy-coder 725 65 13 Aug 2024 726th ovs-code 🇩🇪 725 95 10 Jan 2023 727th msbranicky 724 60 17 Jan 2024 727th JunkIce 724 60 23 Feb 2025 729th dokutan 724 75 23 Jul 2025 730th phdphil 722 43 9 Apr 2018 731st edsrzf 🇳🇿 722 54 16 days ago 732nd lynn 722 87 7 Jul 2024 732nd emgordon154 722 87 18 Feb 2025 732nd edsrzf 🇳🇿 722 87 4 Mar 2025 732nd DialFrost 🇸🇬 722 87 4 Apr 2025 732nd acotis 722 87 15 Apr 2025 732nd ovs-code 🇩🇪 722 87 20 Apr 2025 732nd sean-niemann 🇺🇸 722 87 6 Jun 2025 732nd kumavale 722 87 17 Aug 2025 740th RussellEmerine 721 80 30 Nov 2019 741st dokutan 721 91 9 hours ago 742nd duckyluuk 🇳🇱 720 73 16 Dec 2024 743rd yzhs 🇩🇪 719 38 21 Jun 2022 744th retrohun 719 69 3 Nov 2024 745th Bubbler-4 717 49 13 Sep 2023 745th ovs-code 🇩🇪 717 49 13 Sep 2023 747th GrayJoKing 🇦🇺 717 53 13 Sep 2021 747th primo-ppcg 🇹🇭 717 53 22 Sep 2021 749th jakzo 716 69 5 Sep 2021 749th Shanethegamer 🇺🇸 716 69 25 Apr 2023 Prev 676–750 of 3,027 Next