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 Minesweeper 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 Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Minesweeper 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 Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 746th ovs-code 🇩🇪 723 87 117ms 20 Apr 2025 746th sean-niemann 🇺🇸 723 87 123ms 6 Jun 2025 746th kumavale 723 87 133ms 17 Aug 2025 754th phdphil 722 43 190ms 9 Apr 2018 755th edsrzf 🇳🇿 722 54 999ms 8 Sep 2025 756th dokutan 722 91 559ms 24 Sep 2025 757th RussellEmerine 721 80 155ms 30 Nov 2019 757th iczelia 🇩🇪 721 80 173ms 18 days ago 759th duckyluuk 🇳🇱 720 73 5ms 16 Dec 2024 760th yzhs 🇩🇪 719 38 35ms 21 Jun 2022 761st retrohun 719 69 7ms 3 Nov 2024 762nd Bubbler-4 717 49 69ms 13 Sep 2023 762nd ovs-code 🇩🇪 717 49 79ms 13 Sep 2023 764th GrayJoKing 🇦🇺 717 53 1,018ms 13 Sep 2021 764th primo-ppcg 🇹🇭 717 53 1,005ms 22 Sep 2021 766th jakzo 716 69 19ms 5 Sep 2021 766th Shanethegamer 🇺🇸 716 69 11ms 25 Apr 2023 768th MeWhenI 🇻🇦 716 89 43ms 28 Aug 2024 769th ovs-code 🇩🇪 716 98 7ms 17 Mar 2023 770th Natanaelel 🇸🇪 715 32 43ms 22 Jul 2022 770th SirBogman 🇺🇸 715 32 44ms 10 Sep 2022 772nd duckyluuk 🇳🇱 715 60 4,182ms 26 Oct 2024 773rd GrayJoKing 🇦🇺 715 72 45ms 14 Jun 2022 773rd primo-ppcg 🇹🇭 715 72 39ms 21 Jun 2022 775th DialFrost 🇸🇬 715 76 129ms 26 Dec 2024 776th Attero 🇸🇪 714 66 51ms 25 Sep 2020 776th nstearns96 🇬🇧 714 66 15ms 15 Dec 2022 778th jared-hughes 714 88 118ms 10 Nov 2022 778th kgodara 714 88 125ms 11 Mar 2023 780th namelessiw 713 61 337ms 5 Mar 2024 780th lifthrasiir 🇰🇷 713 61 402ms 2 Dec 2024 780th DialFrost 🇸🇬 713 61 426ms 26 Dec 2024 783rd ovs-code 🇩🇪 713 83 5ms 10 Oct 2023 784th Laar 712 81 177ms 1 Apr 2019 784th alomiF 712 81 171ms 5 Oct 2023 784th brimstonetrader 712 81 134ms 26 Jan 2024 787th KenanSi 710 31 3ms 24 Feb 2022 787th ashtraypettingzoo 🇺🇸 710 31 3ms 5 Apr 2023 789th MeWhenI 🇻🇦 710 92 8ms 2 Oct 2022 790th Alex-x90 🇺🇸 710 97 54ms 4 Dec 2022 790th Herbert00709 🇵🇱 710 97 53ms 8 Jun 2024 792nd GrayJoKing 🇦🇺 706 70 13ms 20 Sep 2021 792nd 0x24a537r9 706 70 13ms 10 Sep 2022 792nd TRexOnGit 706 70 11ms 2 May 2025 792nd Protothor 706 70 9ms 9 Jul 2025 796th GrayJoKing 🇦🇺 705 72 2ms 9 Apr 2022 797th msbranicky 704 185 10ms 29 Aug 2023 798th Shanethegamer 🇺🇸 703 54 890ms 13 Sep 2021 799th sean-niemann 🇺🇸 703 61 2,952ms 30 Oct 2024 799th jkelly467 703 61 1,958ms 4 days ago 801st itsjustfreekie 703 67 77ms 20 Sep 2021 801st Fishron 703 67 68ms 21 Oct 2021 801st fredrik-bakke 🇳🇴 703 67 83ms 29 Sep 2022 801st jakobkordez 🇸🇮 703 67 18ms 30 Oct 2022 801st jmerle 🇳🇱 703 67 75ms 16 Feb 2023 806th jared-hughes 703 82 158ms 11 Sep 2023 807th m-tkach 🇺🇦 703 98 53ms 9 Mar 2023 807th annaproxy 703 98 55ms 22 Oct 2023 809th jmerle 🇳🇱 702 100 7ms 4 Jul 2023 810th Yewzir 🇧🇪 701 62 395ms 4 Feb 2024 810th ovs-code 🇩🇪 701 62 412ms 2 Mar 2024 810th KatieLG 🇬🇧 701 62 424ms 28 Oct 2024 813th saito-ta 🇯🇵 701 75 6ms 22 Jun 2022 813th inventshah 701 75 2ms 25 Jan 2023 813th Yewzir 🇧🇪 701 75 2ms 22 Dec 2023 813th KasperKivimaeki 🇫🇮 701 75 2ms 5 Jan 2025 817th dbut2 🇦🇺 701 121 267ms 15 Jul 2025 818th MeWhenI 🇻🇦 700 69 2ms 10 Sep 2022 818th Yewzir 🇧🇪 700 69 3ms 22 Dec 2023 818th sean-niemann 🇺🇸 700 69 3ms 8 Oct 2024 818th albanian-laundromat 700 69 2ms 24 Jun 2025 822nd jared-hughes 699 94 359ms 24 Sep 2025 823rd JunkIce 698 90 124ms 23 Feb 2025 823rd dokutan 698 90 123ms 23 Jul 2025 825th jared-hughes 696 71 10ms 29 Oct 2021 First Prev 751–825 of 3,072 Next Last