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 826th JunkIce 698 90 126ms 23 Feb 2025 826th dokutan 698 90 121ms 23 Jul 2025 828th jared-hughes 696 71 9ms 29 Oct 2021 828th stefangimmillaro 696 71 9ms 27 Aug 2022 828th SirFireball3521 696 71 9ms 28 Jan 2023 828th Maznek 696 71 9ms 19 Jun 2023 828th KrausRaus 🇺🇸 696 71 10ms 14 Oct 2025 833rd msbranicky 696 74 75ms 14 Aug 2023 834th Steffan153 🇫🇮 696 99 54ms 28 Jan 2023 834th ovs-code 🇩🇪 696 99 50ms 3 Jun 2024 834th roupiq 🇵🇱 696 99 54ms 8 Jun 2024 837th xorraxrax 693 68 12ms 19 Oct 2019 837th NewDefectus 🇮🇱 693 68 11ms 1 Nov 2020 837th ydevor 🇮🇱 693 68 10ms 26 Nov 2020 837th jacklynnepenick 693 68 51ms 17 Aug 2021 837th aposteriorist 🇨🇦 693 68 10ms 6 Feb 2022 837th PowerR0 693 68 10ms 25 Aug 2022 837th SB-945 693 68 17ms 31 Mar 2024 837th Troon 693 68 10ms 11 Feb 2025 845th sisyphus-ppcg 🇦🇺 692 43 2ms 3 Nov 2020 845th pandapawskat 692 43 3ms 20 Sep 2021 845th stefangimmillaro 692 43 2ms 23 Apr 2022 848th o0lit3 🇺🇸 692 50 11ms 19 Apr 2021 848th armin-k1 692 50 9ms 8 Sep 2021 850th Alex-x90 🇺🇸 692 76 2ms 3 Dec 2022 851st MeWhenI 🇻🇦 692 133 1,523ms 4 days ago 852nd anter69 🇭🇺 691 55 1,011ms 10 Mar 2025 853rd GrayJoKing 🇦🇺 691 61 115ms 13 Mar 2022 854th btnlq 691 63 4ms 15 Jul 2023 855th JDiLenarda 🇫🇷 690 61 1,241ms 9 Oct 2020 856th SirBogman 🇺🇸 690 63 405ms 15 Jan 2024 856th GolfingSuccess 🇬🇷 690 63 336ms 30 Jan 2024 858th inventshah 690 70 3ms 9 Sep 2022 859th labster 689 45 130ms 23 Feb 2018 860th jared-hughes 689 100 53ms 20 Jul 2022 861st gnuvince 688 32 11ms 2 Aug 2024 861st codereport 🇨🇦 688 32 3ms 21 Apr 2025 863rd marshallward 🇺🇸 688 81 41ms 2 Sep 2022 864th JayXon 🇺🇸 688 102 7ms 15 Mar 2023 865th PatrickStephansen 🇿🇦 686 72 11ms 3 Nov 2020 865th KatieLG 🇬🇧 686 72 9ms 16 Apr 2021 865th neihousaigaai 686 72 10ms 18 Apr 2021 865th two-bad 🇬🇧 686 72 13ms 25 Feb 2024 869th MeWhenI 🇻🇦 686 75 40ms 20 Jun 2022 870th rustyflamingo 685 49 551ms 22 Sep 2022 870th antimon2 🇯🇵 685 49 565ms 15 Oct 2022 870th alemelis 685 49 539ms 1 Mar 2023 870th HPWiz 🇳🇿 685 49 554ms 9 Mar 2023 870th ovs-code 🇩🇪 685 49 562ms 24 Oct 2023 870th MarcMush 🇫🇷 685 49 589ms 5 Jan 2024 870th DialFrost 🇸🇬 685 49 541ms 5 Jan 2024 870th twolfive 685 49 552ms 5 Oct 2024 878th DialFrost 🇸🇬 685 93 40ms 16 Feb 2025 879th galloj 🇨🇿 684 107 1ms 28 Aug 2022 880th j-Ewan 683 40 33ms 22 Feb 2022 881st Espiobest 683 69 19ms 26 Feb 2021 881st cbondurant 683 69 10ms 10 May 2021 881st hellwue 683 69 10ms 8 Feb 2023 881st Vaekor 683 69 10ms 9 Jul 2023 881st jatloe 683 69 107ms 27 Sep 2024 886th sean-niemann 🇺🇸 683 77 2ms 29 Nov 2022 887th MeWhenI 🇻🇦 682 101 52ms 8 May 2022 887th janbehrens 🇩🇪 682 101 53ms 26 Nov 2023 889th retrohun 682 191 10ms 27 Dec 2022 890th sisyphus-ppcg 🇦🇺 681 67 4ms 2 Jul 2023 890th targrik 681 67 4ms 17 Jul 2025 892nd m-tkach 🇺🇦 680 64 376ms 30 Jan 2024 893rd MeWhenI 🇻🇦 679 62 114ms 11 Nov 2021 894th Yewzir 🇧🇪 679 87 2ms 21 Jan 2024 894th rucin93 🇵🇱 679 87 2ms 22 Apr 2025 896th Irratix 🇳🇱 678 56 1,042ms 25 Mar 2021 896th emgordon154 678 56 911ms 18 Nov 2024 898th emplv 🇱🇻 678 63 133ms 17 Jul 2025 899th didion0 🇺🇸 677 73 15ms 22 Apr 2021 899th itsh01 677 73 12ms 16 Aug 2021 First Prev 826–900 of 3,079 Next Last