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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 674th Argeento 🇵🇱 749 66 10ms 13 Nov 2020 674th ovs-code 🇩🇪 749 66 10ms 29 Jul 2024 678th marcin7Cd 749 77 172ms 11 Mar 2020 678th fuzzylojik-golf 🇺🇸 749 77 153ms 15 Sep 2025 680th bac0id 749 92 62ms 23 Feb 2024 680th dokutan 749 92 67ms 7 Apr 2024 682nd fuzzylojik-golf 🇺🇸 747 83 433ms 30 Aug 2025 683rd DialFrost 🇸🇬 746 88 442ms 24 Sep 2025 683rd Yewzir 🇧🇪 746 88 387ms 23 days ago 685th DialFrost 🇸🇬 744 114 295ms 26 Dec 2024 686th MeWhenI 🇻🇦 741 71 2ms 22 Aug 2023 687th lynn 741 93 29ms 12 Jul 2023 687th xsot 🇸🇬 741 93 60ms 23 May 2024 689th dan-simon 739 42 137ms 28 Dec 2017 689th yokasuretsu 739 42 125ms 27 Jun 2018 691st emgordon154 739 58 2,644ms 20 Nov 2024 691st DialFrost 🇸🇬 739 58 2,689ms 25 Dec 2024 693rd Shanethegamer 🇺🇸 739 73 366ms 12 May 2023 693rd janbehrens 🇩🇪 739 73 298ms 26 Nov 2023 695th elgan65536 739 85 140ms 22 Sep 2023 696th sisyphus-ppcg 🇦🇺 739 95 8ms 14 Mar 2023 696th Lydxn 🇨🇦 739 95 7ms 14 Mar 2023 698th Steffan153 🇫🇮 739 99 2ms 28 Jan 2023 698th pardouin 🇫🇷 739 99 1ms 21 Sep 2024 698th sean-niemann 🇺🇸 739 99 1ms 9 May 2025 701st Frank-Buss 738 93 6ms 29 Aug 2020 702nd KasperKivimaeki 🇫🇮 738 115 320ms 22 days ago 703rd dokutan 737 59 369ms 14 Apr 2024 704th rambox11 737 67 9ms 2 Apr 2018 704th ETHproductions 🇺🇸 737 67 11ms 14 Apr 2018 704th frobinsonj 737 67 9ms 28 Jun 2018 704th dee-gomma 737 67 9ms 27 Mar 2019 704th elisherer 🇮🇱 737 67 9ms 23 Dec 2019 704th ArmaanAS 737 67 10ms 8 Mar 2021 710th edsrzf 🇳🇿 737 86 62ms 30 Dec 2024 711th MeWhenI 🇻🇦 737 92 30ms 13 Jul 2021 712th trist224 🇫🇷 736 64 30ms 15 Nov 2022 713th Shanethegamer 🇺🇸 733 30 2ms 13 Jan 2022 714th MeWhenI 🇻🇦 733 76 45ms 16 May 2023 715th SirBogman 🇺🇸 731 45 216ms 7 Jan 2024 716th treeowl 730 79 172ms 27 Feb 2019 716th user189032 730 79 184ms 29 May 2019 716th cbrt-x 730 79 165ms 15 Sep 2023 719th prplz 🇦🇺 730 86 135ms 30 Apr 2022 719th pardouin 🇫🇷 730 86 130ms 24 Aug 2024 721st emplv 🇱🇻 729 93 26ms 29 Jun 2022 722nd NewDefectus 🇮🇱 727 68 9ms 16 Dec 2021 723rd Irratix 🇳🇱 726 41 2ms 1 Nov 2020 723rd primo-ppcg 🇹🇭 726 41 2ms 2 Nov 2020 723rd GrayJoKing 🇦🇺 726 41 2ms 27 Nov 2020 723rd KatieLG 🇬🇧 726 41 2ms 9 Dec 2020 723rd msbranicky 726 41 2ms 27 Jul 2023 723rd dokutan 726 41 3ms 11 Nov 2023 723rd AlephSquirrel 726 41 2ms 27 Jan 2025 730th dokutan 726 90 4ms 12 Feb 2025 731st msbranicky 725 60 394ms 17 Jan 2024 731st JunkIce 725 60 383ms 23 Feb 2025 733rd ZakkkkAttackkkk 🇵🇭 725 65 35ms 21 Dec 2021 733rd bob-th 725 65 50ms 5 Aug 2022 733rd btjones0 725 65 59ms 22 Nov 2022 733rd falsidge 725 65 10ms 21 Jun 2023 733rd snoozingnewt 🇺🇸 725 65 97ms 3 Oct 2023 733rd bizy-coder 725 65 10ms 13 Aug 2024 739th ovs-code 🇩🇪 725 95 28ms 10 Jan 2023 740th dokutan 724 75 114ms 23 Jul 2025 741st phdphil 722 43 190ms 9 Apr 2018 742nd edsrzf 🇳🇿 722 54 772ms 8 Sep 2025 743rd lynn 722 87 125ms 7 Jul 2024 743rd emgordon154 722 87 128ms 18 Feb 2025 743rd edsrzf 🇳🇿 722 87 123ms 4 Mar 2025 743rd DialFrost 🇸🇬 722 87 140ms 4 Apr 2025 743rd acotis 722 87 119ms 15 Apr 2025 743rd ovs-code 🇩🇪 722 87 133ms 20 Apr 2025 743rd sean-niemann 🇺🇸 722 87 129ms 6 Jun 2025 743rd kumavale 722 87 151ms 17 Aug 2025 First Prev 676–750 of 3,058 Next Last