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 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 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 823rd albanian-laundromat 700 69 2ms 24 Jun 2025 827th jared-hughes 699 94 337ms 24 Sep 2025 828th JunkIce 698 90 126ms 23 Feb 2025 828th dokutan 698 90 121ms 23 Jul 2025 830th jared-hughes 696 71 9ms 29 Oct 2021 830th stefangimmillaro 696 71 9ms 27 Aug 2022 830th SirFireball3521 696 71 9ms 28 Jan 2023 830th Maznek 696 71 9ms 19 Jun 2023 830th KrausRaus 🇺🇸 696 71 10ms 14 Oct 2025 835th msbranicky 696 74 75ms 14 Aug 2023 836th Steffan153 🇫🇮 696 99 54ms 28 Jan 2023 836th ovs-code 🇩🇪 696 99 50ms 3 Jun 2024 836th roupiq 🇵🇱 696 99 54ms 8 Jun 2024 839th MeWhenI 🇻🇦 694 133 1,523ms 8 days ago 840th xorraxrax 693 68 9ms 19 Oct 2019 840th NewDefectus 🇮🇱 693 68 9ms 1 Nov 2020 840th ydevor 🇮🇱 693 68 9ms 26 Nov 2020 840th jacklynnepenick 693 68 51ms 17 Aug 2021 840th aposteriorist 🇨🇦 693 68 9ms 6 Feb 2022 840th PowerR0 693 68 9ms 25 Aug 2022 840th SB-945 693 68 17ms 31 Mar 2024 840th Troon 693 68 9ms 11 Feb 2025 848th sisyphus-ppcg 🇦🇺 692 43 2ms 3 Nov 2020 848th pandapawskat 692 43 3ms 20 Sep 2021 848th stefangimmillaro 692 43 2ms 23 Apr 2022 851st o0lit3 🇺🇸 692 50 11ms 19 Apr 2021 851st armin-k1 692 50 9ms 8 Sep 2021 853rd Alex-x90 🇺🇸 692 76 2ms 3 Dec 2022 854th anter69 🇭🇺 691 55 1,011ms 10 Mar 2025 855th GrayJoKing 🇦🇺 691 61 115ms 13 Mar 2022 856th btnlq 691 63 4ms 15 Jul 2023 857th JDiLenarda 🇫🇷 690 61 1,241ms 9 Oct 2020 858th SirBogman 🇺🇸 690 63 405ms 15 Jan 2024 858th GolfingSuccess 🇬🇷 690 63 336ms 30 Jan 2024 860th inventshah 690 70 3ms 9 Sep 2022 861st labster 689 45 130ms 23 Feb 2018 862nd jared-hughes 689 100 53ms 20 Jul 2022 863rd gnuvince 688 32 11ms 2 Aug 2024 863rd codereport 🇨🇦 688 32 3ms 21 Apr 2025 865th marshallward 🇺🇸 688 81 41ms 2 Sep 2022 866th JayXon 🇺🇸 688 102 7ms 15 Mar 2023 867th PatrickStephansen 🇿🇦 686 72 11ms 3 Nov 2020 867th KatieLG 🇬🇧 686 72 9ms 16 Apr 2021 867th neihousaigaai 686 72 10ms 18 Apr 2021 867th two-bad 🇬🇧 686 72 13ms 25 Feb 2024 871st MeWhenI 🇻🇦 686 75 40ms 20 Jun 2022 872nd rustyflamingo 685 49 551ms 22 Sep 2022 872nd antimon2 🇯🇵 685 49 565ms 15 Oct 2022 872nd alemelis 685 49 539ms 1 Mar 2023 872nd HPWiz 🇳🇿 685 49 554ms 9 Mar 2023 872nd ovs-code 🇩🇪 685 49 562ms 24 Oct 2023 872nd MarcMush 🇫🇷 685 49 589ms 5 Jan 2024 872nd DialFrost 🇸🇬 685 49 541ms 5 Jan 2024 872nd twolfive 685 49 552ms 5 Oct 2024 880th DialFrost 🇸🇬 685 93 40ms 16 Feb 2025 881st galloj 🇨🇿 684 107 1ms 28 Aug 2022 882nd j-Ewan 683 40 33ms 22 Feb 2022 883rd Espiobest 683 69 17ms 26 Feb 2021 883rd cbondurant 683 69 10ms 10 May 2021 883rd hellwue 683 69 9ms 8 Feb 2023 883rd Vaekor 683 69 9ms 9 Jul 2023 883rd jatloe 683 69 73ms 27 Sep 2024 888th sean-niemann 🇺🇸 683 77 2ms 29 Nov 2022 889th MeWhenI 🇻🇦 682 101 52ms 8 May 2022 889th janbehrens 🇩🇪 682 101 53ms 26 Nov 2023 891st retrohun 682 191 10ms 27 Dec 2022 892nd sisyphus-ppcg 🇦🇺 681 67 4ms 2 Jul 2023 892nd targrik 681 67 4ms 17 Jul 2025 894th m-tkach 🇺🇦 680 64 376ms 30 Jan 2024 895th MeWhenI 🇻🇦 679 62 114ms 11 Nov 2021 896th Yewzir 🇧🇪 679 87 2ms 21 Jan 2024 896th rucin93 🇵🇱 679 87 2ms 22 Apr 2025 898th Irratix 🇳🇱 678 56 1,042ms 25 Mar 2021 898th emgordon154 678 56 911ms 18 Nov 2024 900th emplv 🇱🇻 678 63 133ms 17 Jul 2025 First Prev 826–900 of 3,082 Next Last