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 826th jared-hughes 699 94 337ms 24 Sep 2025 827th JunkIce 698 90 126ms 23 Feb 2025 827th dokutan 698 90 121ms 23 Jul 2025 829th jared-hughes 696 71 9ms 29 Oct 2021 829th stefangimmillaro 696 71 9ms 27 Aug 2022 829th SirFireball3521 696 71 9ms 28 Jan 2023 829th Maznek 696 71 9ms 19 Jun 2023 829th KrausRaus 🇺🇸 696 71 10ms 14 Oct 2025 834th msbranicky 696 74 75ms 14 Aug 2023 835th Steffan153 🇫🇮 696 99 54ms 28 Jan 2023 835th ovs-code 🇩🇪 696 99 50ms 3 Jun 2024 835th roupiq 🇵🇱 696 99 54ms 8 Jun 2024 838th MeWhenI 🇻🇦 694 133 1,523ms 6 days ago 839th xorraxrax 693 68 12ms 19 Oct 2019 839th NewDefectus 🇮🇱 693 68 11ms 1 Nov 2020 839th ydevor 🇮🇱 693 68 10ms 26 Nov 2020 839th jacklynnepenick 693 68 51ms 17 Aug 2021 839th aposteriorist 🇨🇦 693 68 10ms 6 Feb 2022 839th PowerR0 693 68 10ms 25 Aug 2022 839th SB-945 693 68 17ms 31 Mar 2024 839th Troon 693 68 10ms 11 Feb 2025 847th sisyphus-ppcg 🇦🇺 692 43 2ms 3 Nov 2020 847th pandapawskat 692 43 3ms 20 Sep 2021 847th stefangimmillaro 692 43 2ms 23 Apr 2022 850th o0lit3 🇺🇸 692 50 11ms 19 Apr 2021 850th armin-k1 692 50 9ms 8 Sep 2021 852nd Alex-x90 🇺🇸 692 76 2ms 3 Dec 2022 853rd anter69 🇭🇺 691 55 1,011ms 10 Mar 2025 854th GrayJoKing 🇦🇺 691 61 115ms 13 Mar 2022 855th btnlq 691 63 4ms 15 Jul 2023 856th JDiLenarda 🇫🇷 690 61 1,241ms 9 Oct 2020 857th SirBogman 🇺🇸 690 63 405ms 15 Jan 2024 857th GolfingSuccess 🇬🇷 690 63 336ms 30 Jan 2024 859th inventshah 690 70 3ms 9 Sep 2022 860th labster 689 45 130ms 23 Feb 2018 861st jared-hughes 689 100 53ms 20 Jul 2022 862nd gnuvince 688 32 11ms 2 Aug 2024 862nd codereport 🇨🇦 688 32 3ms 21 Apr 2025 864th marshallward 🇺🇸 688 81 41ms 2 Sep 2022 865th JayXon 🇺🇸 688 102 7ms 15 Mar 2023 866th PatrickStephansen 🇿🇦 686 72 11ms 3 Nov 2020 866th KatieLG 🇬🇧 686 72 9ms 16 Apr 2021 866th neihousaigaai 686 72 10ms 18 Apr 2021 866th two-bad 🇬🇧 686 72 13ms 25 Feb 2024 870th MeWhenI 🇻🇦 686 75 40ms 20 Jun 2022 871st rustyflamingo 685 49 551ms 22 Sep 2022 871st antimon2 🇯🇵 685 49 565ms 15 Oct 2022 871st alemelis 685 49 539ms 1 Mar 2023 871st HPWiz 🇳🇿 685 49 554ms 9 Mar 2023 871st ovs-code 🇩🇪 685 49 562ms 24 Oct 2023 871st MarcMush 🇫🇷 685 49 589ms 5 Jan 2024 871st DialFrost 🇸🇬 685 49 541ms 5 Jan 2024 871st twolfive 685 49 552ms 5 Oct 2024 879th DialFrost 🇸🇬 685 93 40ms 16 Feb 2025 880th galloj 🇨🇿 684 107 1ms 28 Aug 2022 881st j-Ewan 683 40 33ms 22 Feb 2022 882nd Espiobest 683 69 19ms 26 Feb 2021 882nd cbondurant 683 69 10ms 10 May 2021 882nd hellwue 683 69 10ms 8 Feb 2023 882nd Vaekor 683 69 10ms 9 Jul 2023 882nd jatloe 683 69 107ms 27 Sep 2024 887th sean-niemann 🇺🇸 683 77 2ms 29 Nov 2022 888th MeWhenI 🇻🇦 682 101 52ms 8 May 2022 888th janbehrens 🇩🇪 682 101 53ms 26 Nov 2023 890th retrohun 682 191 10ms 27 Dec 2022 891st sisyphus-ppcg 🇦🇺 681 67 4ms 2 Jul 2023 891st targrik 681 67 4ms 17 Jul 2025 893rd m-tkach 🇺🇦 680 64 376ms 30 Jan 2024 894th MeWhenI 🇻🇦 679 62 114ms 11 Nov 2021 895th Yewzir 🇧🇪 679 87 2ms 21 Jan 2024 895th rucin93 🇵🇱 679 87 2ms 22 Apr 2025 897th Irratix 🇳🇱 678 56 1,042ms 25 Mar 2021 897th emgordon154 678 56 911ms 18 Nov 2024 899th emplv 🇱🇻 678 63 133ms 17 Jul 2025 900th didion0 🇺🇸 677 73 15ms 22 Apr 2021 First Prev 826–900 of 3,081 Next Last