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 747th acotis 723 87 120ms 15 Apr 2025 747th ovs-code 🇩🇪 723 87 117ms 20 Apr 2025 747th sean-niemann 🇺🇸 723 87 123ms 6 Jun 2025 747th kumavale 723 87 133ms 17 Aug 2025 755th phdphil 722 43 190ms 9 Apr 2018 756th edsrzf 🇳🇿 722 54 596ms 8 Sep 2025 757th dokutan 722 91 353ms 24 Sep 2025 758th RussellEmerine 721 80 155ms 30 Nov 2019 758th iczelia 🇩🇪 721 80 173ms 19 days ago 760th duckyluuk 🇳🇱 720 73 5ms 16 Dec 2024 761st yzhs 🇩🇪 719 38 35ms 21 Jun 2022 762nd retrohun 719 69 7ms 3 Nov 2024 763rd Bubbler-4 717 49 69ms 13 Sep 2023 763rd ovs-code 🇩🇪 717 49 79ms 13 Sep 2023 765th GrayJoKing 🇦🇺 717 53 1,018ms 13 Sep 2021 765th primo-ppcg 🇹🇭 717 53 1,005ms 22 Sep 2021 767th jakzo 716 69 19ms 5 Sep 2021 767th Shanethegamer 🇺🇸 716 69 11ms 25 Apr 2023 769th MeWhenI 🇻🇦 716 89 43ms 28 Aug 2024 770th ovs-code 🇩🇪 716 98 7ms 17 Mar 2023 771st Natanaelel 🇸🇪 715 32 43ms 22 Jul 2022 771st SirBogman 🇺🇸 715 32 44ms 10 Sep 2022 773rd duckyluuk 🇳🇱 715 60 4,182ms 26 Oct 2024 774th GrayJoKing 🇦🇺 715 72 45ms 14 Jun 2022 774th primo-ppcg 🇹🇭 715 72 39ms 21 Jun 2022 776th DialFrost 🇸🇬 715 76 129ms 26 Dec 2024 777th Attero 🇸🇪 714 66 51ms 25 Sep 2020 777th nstearns96 🇬🇧 714 66 15ms 15 Dec 2022 779th jared-hughes 714 88 118ms 10 Nov 2022 779th kgodara 714 88 125ms 11 Mar 2023 781st namelessiw 713 61 337ms 5 Mar 2024 781st lifthrasiir 🇰🇷 713 61 402ms 2 Dec 2024 781st DialFrost 🇸🇬 713 61 426ms 26 Dec 2024 784th ovs-code 🇩🇪 713 83 5ms 10 Oct 2023 785th Laar 712 81 177ms 1 Apr 2019 785th alomiF 712 81 171ms 5 Oct 2023 785th brimstonetrader 712 81 134ms 26 Jan 2024 788th KenanSi 710 31 3ms 24 Feb 2022 788th ashtraypettingzoo 🇺🇸 710 31 3ms 5 Apr 2023 790th MeWhenI 🇻🇦 710 92 8ms 2 Oct 2022 791st Alex-x90 🇺🇸 710 97 54ms 4 Dec 2022 791st Herbert00709 🇵🇱 710 97 53ms 8 Jun 2024 793rd GrayJoKing 🇦🇺 706 70 13ms 20 Sep 2021 793rd 0x24a537r9 706 70 13ms 10 Sep 2022 793rd TRexOnGit 706 70 11ms 2 May 2025 793rd Protothor 706 70 9ms 9 Jul 2025 797th GrayJoKing 🇦🇺 705 72 2ms 9 Apr 2022 798th msbranicky 704 185 11ms 29 Aug 2023 799th Shanethegamer 🇺🇸 703 54 890ms 13 Sep 2021 800th sean-niemann 🇺🇸 703 61 2,952ms 30 Oct 2024 800th jkelly467 703 61 1,958ms 5 days ago 802nd itsjustfreekie 703 67 77ms 20 Sep 2021 802nd Fishron 703 67 68ms 21 Oct 2021 802nd fredrik-bakke 🇳🇴 703 67 83ms 29 Sep 2022 802nd jakobkordez 🇸🇮 703 67 18ms 30 Oct 2022 802nd jmerle 🇳🇱 703 67 75ms 16 Feb 2023 807th jared-hughes 703 82 158ms 11 Sep 2023 808th m-tkach 🇺🇦 703 98 53ms 9 Mar 2023 808th annaproxy 703 98 55ms 22 Oct 2023 810th jmerle 🇳🇱 702 100 7ms 4 Jul 2023 811th Yewzir 🇧🇪 701 62 395ms 4 Feb 2024 811th ovs-code 🇩🇪 701 62 412ms 2 Mar 2024 811th KatieLG 🇬🇧 701 62 424ms 28 Oct 2024 814th saito-ta 🇯🇵 701 75 6ms 22 Jun 2022 814th inventshah 701 75 2ms 25 Jan 2023 814th Yewzir 🇧🇪 701 75 2ms 22 Dec 2023 814th KasperKivimaeki 🇫🇮 701 75 2ms 5 Jan 2025 818th dbut2 🇦🇺 701 121 267ms 15 Jul 2025 819th MeWhenI 🇻🇦 700 69 2ms 10 Sep 2022 819th Yewzir 🇧🇪 700 69 3ms 22 Dec 2023 819th sean-niemann 🇺🇸 700 69 3ms 8 Oct 2024 819th albanian-laundromat 700 69 2ms 24 Jun 2025 823rd jared-hughes 699 94 337ms 24 Sep 2025 824th JunkIce 698 90 124ms 23 Feb 2025 824th dokutan 698 90 123ms 23 Jul 2025 First Prev 751–825 of 3,073 Next Last