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 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 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 Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Knight 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 820th SB-945 693 68 31 Mar 2024 820th Troon 693 68 11 Feb 2025 828th sisyphus-ppcg 🇦🇺 692 43 3 Nov 2020 828th pandapawskat 692 43 20 Sep 2021 828th stefangimmillaro 692 43 23 Apr 2022 831st o0lit3 🇺🇸 692 50 19 Apr 2021 831st armin-k1 692 50 8 Sep 2021 833rd Alex-x90 🇺🇸 692 76 3 Dec 2022 834th anter69 🇭🇺 690 55 10 Mar 2025 835th SirBogman 🇺🇸 690 63 15 Jan 2024 835th GolfingSuccess 🇬🇷 690 63 30 Jan 2024 837th labster 689 45 23 Feb 2018 838th JDiLenarda 🇫🇷 689 61 9 Oct 2020 838th GrayJoKing 🇦🇺 689 61 13 Mar 2022 840th btnlq 689 63 15 Jul 2023 841st inventshah 689 70 9 Sep 2022 842nd gnuvince 688 32 2 Aug 2024 842nd codereport 🇨🇦 688 32 21 Apr 2025 844th jared-hughes 688 100 20 Jul 2022 845th marshallward 🇺🇸 687 81 2 Sep 2022 846th JayXon 🇺🇸 687 102 15 Mar 2023 847th PatrickStephansen 🇿🇦 686 72 3 Nov 2020 847th KatieLG 🇬🇧 686 72 16 Apr 2021 847th neihousaigaai 686 72 18 Apr 2021 847th two-bad 🇬🇧 686 72 25 Feb 2024 851st MeWhenI 🇻🇦 686 75 20 Jun 2022 852nd rustyflamingo 685 49 22 Sep 2022 852nd antimon2 🇯🇵 685 49 15 Oct 2022 852nd alemelis 685 49 1 Mar 2023 852nd HPWiz 🇳🇿 685 49 9 Mar 2023 852nd ovs-code 🇩🇪 685 49 24 Oct 2023 852nd MarcMush 🇫🇷 685 49 5 Jan 2024 852nd DialFrost 🇸🇬 685 49 5 Jan 2024 852nd twolfive 685 49 5 Oct 2024 860th j-Ewan 683 40 22 Feb 2022 861st Espiobest 683 69 26 Feb 2021 861st cbondurant 683 69 10 May 2021 861st hellwue 683 69 8 Feb 2023 861st Vaekor 683 69 9 Jul 2023 861st jatloe 683 69 27 Sep 2024 866th sean-niemann 🇺🇸 683 77 29 Nov 2022 867th MeWhenI 🇻🇦 682 101 8 May 2022 867th janbehrens 🇩🇪 682 101 26 Nov 2023 869th galloj 🇨🇿 682 107 28 Aug 2022 870th sisyphus-ppcg 🇦🇺 681 67 2 Jul 2023 870th targrik 681 67 24 days ago 872nd Yewzir 🇧🇪 680 87 21 Jan 2024 872nd rucin93 🇵🇱 680 87 22 Apr 2025 874th m-tkach 🇺🇦 679 64 30 Jan 2024 875th inventshah 679 146 17 Jun 2022 876th Irratix 🇳🇱 678 56 25 Mar 2021 876th emgordon154 678 56 18 Nov 2024 878th MeWhenI 🇻🇦 678 62 11 Nov 2021 879th emplv 🇱🇻 678 63 24 days ago 880th DialFrost 🇸🇬 678 93 16 Feb 2025 881st didion0 🇺🇸 677 73 22 Apr 2021 881st itsh01 677 73 16 Aug 2021 881st c0d3-4-F00d 🇩🇪 677 73 5 Jan 2022 881st DaCuteRaccoon 677 73 30 Nov 2022 881st inventshah 677 73 28 Jan 2023 881st snoozingnewt 🇺🇸 677 73 1 Sep 2024 887th primo-ppcg 🇹🇭 675 57 27 Apr 2023 887th GrayJoKing 🇦🇺 675 57 20 Aug 2023 887th emgordon154 675 57 10 Jan 2025 887th sean-niemann 🇺🇸 675 57 21 Apr 2025 891st primo-ppcg 🇹🇭 675 105 3 Oct 2020 892nd Attero 🇸🇪 674 46 4 May 2020 893rd marcin7Cd 674 78 17 May 2020 893rd lynn 674 78 2 Oct 2021 893rd Steffan153 🇫🇮 674 78 28 Jan 2023 896th annaproxy 674 80 5 May 2022 896th Yewzir 🇧🇪 674 80 8 May 2023 896th DialFrost 🇸🇬 674 80 26 Dec 2024 899th Irratix 🇳🇱 674 147 11 Dec 2021 900th gilufin 673 70 23 May 2021 Prev 826–900 of 2,914 Next