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 Continued Fractions Crossword 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 Continued Fractions Crossword 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 751st dokutan 724 75 102ms 23 Jul 2025 752nd lynn 723 87 121ms 7 Jul 2024 752nd emgordon154 723 87 120ms 18 Feb 2025 752nd edsrzf 🇳🇿 723 87 123ms 4 Mar 2025 752nd DialFrost 🇸🇬 723 87 117ms 4 Apr 2025 752nd acotis 723 87 124ms 15 Apr 2025 752nd ovs-code 🇩🇪 723 87 122ms 20 Apr 2025 752nd sean-niemann 🇺🇸 723 87 121ms 6 Jun 2025 752nd kumavale 723 87 124ms 17 Aug 2025 760th phdphil 722 43 140ms 9 Apr 2018 761st edsrzf 🇳🇿 722 54 596ms 8 Sep 2025 762nd dokutan 722 91 353ms 24 Sep 2025 763rd RussellEmerine 721 80 155ms 30 Nov 2019 763rd iczelia 🇩🇪 721 80 173ms 20 Oct 2025 765th duckyluuk 🇳🇱 720 73 5ms 16 Dec 2024 766th yzhs 🇩🇪 719 38 35ms 21 Jun 2022 767th retrohun 719 69 7ms 3 Nov 2024 768th Bubbler-4 717 49 69ms 13 Sep 2023 768th ovs-code 🇩🇪 717 49 79ms 13 Sep 2023 770th GrayJoKing 🇦🇺 717 53 1,018ms 13 Sep 2021 770th primo-ppcg 🇹🇭 717 53 1,005ms 22 Sep 2021 772nd jakzo 716 69 14ms 5 Sep 2021 772nd Shanethegamer 🇺🇸 716 69 10ms 25 Apr 2023 774th MeWhenI 🇻🇦 716 89 43ms 28 Aug 2024 775th ovs-code 🇩🇪 716 98 7ms 17 Mar 2023 776th Natanaelel 🇸🇪 715 32 43ms 22 Jul 2022 776th SirBogman 🇺🇸 715 32 44ms 10 Sep 2022 778th duckyluuk 🇳🇱 715 60 2,802ms 26 Oct 2024 779th GrayJoKing 🇦🇺 715 72 45ms 14 Jun 2022 779th primo-ppcg 🇹🇭 715 72 39ms 21 Jun 2022 781st DialFrost 🇸🇬 715 76 112ms 26 Dec 2024 782nd Attero 🇸🇪 714 66 53ms 25 Sep 2020 782nd nstearns96 🇬🇧 714 66 16ms 15 Dec 2022 784th jared-hughes 714 88 121ms 10 Nov 2022 784th kgodara 714 88 125ms 11 Mar 2023 786th Yax42 🇫🇷 714 92 339ms 9 days ago 787th namelessiw 713 61 337ms 5 Mar 2024 787th lifthrasiir 🇰🇷 713 61 402ms 2 Dec 2024 787th DialFrost 🇸🇬 713 61 426ms 26 Dec 2024 790th Laar 712 81 177ms 1 Apr 2019 790th alomiF 712 81 171ms 5 Oct 2023 790th brimstonetrader 712 81 134ms 26 Jan 2024 793rd MeWhenI 🇻🇦 711 92 5ms 2 Oct 2022 794th Alex-x90 🇺🇸 711 97 52ms 4 Dec 2022 794th Herbert00709 🇵🇱 711 97 53ms 8 Jun 2024 796th KenanSi 710 31 3ms 24 Feb 2022 796th ashtraypettingzoo 🇺🇸 710 31 3ms 5 Apr 2023 798th GrayJoKing 🇦🇺 706 70 11ms 20 Sep 2021 798th 0x24a537r9 706 70 12ms 10 Sep 2022 798th TRexOnGit 706 70 10ms 2 May 2025 798th Protothor 706 70 9ms 9 Jul 2025 802nd GrayJoKing 🇦🇺 705 72 2ms 9 Apr 2022 803rd msbranicky 704 185 10ms 29 Aug 2023 804th Shanethegamer 🇺🇸 703 54 890ms 13 Sep 2021 805th sean-niemann 🇺🇸 703 61 2,794ms 30 Oct 2024 805th jkelly467 703 61 1,958ms 18 days ago 807th itsjustfreekie 703 67 83ms 20 Sep 2021 807th Fishron 703 67 71ms 21 Oct 2021 807th fredrik-bakke 🇳🇴 703 67 98ms 29 Sep 2022 807th jakobkordez 🇸🇮 703 67 26ms 30 Oct 2022 807th jmerle 🇳🇱 703 67 81ms 16 Feb 2023 812th jared-hughes 703 82 158ms 11 Sep 2023 813th m-tkach 🇺🇦 703 98 56ms 9 Mar 2023 813th annaproxy 703 98 52ms 22 Oct 2023 815th Yewzir 🇧🇪 702 62 395ms 4 Feb 2024 815th ovs-code 🇩🇪 702 62 412ms 2 Mar 2024 815th KatieLG 🇬🇧 702 62 424ms 28 Oct 2024 818th jmerle 🇳🇱 702 100 7ms 4 Jul 2023 819th saito-ta 🇯🇵 701 75 6ms 22 Jun 2022 819th inventshah 701 75 2ms 25 Jan 2023 819th Yewzir 🇧🇪 701 75 2ms 22 Dec 2023 819th KasperKivimaeki 🇫🇮 701 75 2ms 5 Jan 2025 823rd dbut2 🇦🇺 701 121 267ms 15 Jul 2025 824th MeWhenI 🇻🇦 700 69 2ms 10 Sep 2022 824th Yewzir 🇧🇪 700 69 3ms 22 Dec 2023 First Prev 751–825 of 3,091 Next Last