Happy Numbers in Haskell 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 1st Lydxn 🇨🇦 1,000 61 153ms 4 Jul 2022 2nd primo-ppcg 🇹🇭 924 66 140ms 6 May 2019 2nd HPWiz 🇳🇿 924 66 135ms 7 May 2019 2nd lynn 924 66 136ms 15 Jul 2021 2nd JayXon 🇺🇸 924 66 143ms 4 Jul 2022 2nd Steffan153 🇫🇮 924 66 131ms 28 Jan 2023 2nd btnlq 924 66 138ms 15 Oct 2023 2nd sean-niemann 🇺🇸 924 66 142ms 9 Jan 2025 9th ovs-code 🇩🇪 910 67 130ms 4 Jul 2022 10th the-zammers 884 69 131ms 2 Dec 2024 11th Bubbler-4 847 72 163ms 20 Feb 2019 11th xnor-gate 847 72 156ms 22 Dec 2021 11th tobeannouncd 847 72 177ms 11 Jan 2024 14th flawr 836 73 187ms 24 Feb 2019 14th GrayJoKing 🇦🇺 836 73 196ms 5 Dec 2020 14th Shanethegamer 🇺🇸 836 73 135ms 15 Jul 2021 14th yzhs 🇩🇪 836 73 149ms 24 Jul 2021 14th MeWhenI 🇻🇦 836 73 153ms 15 Sep 2021 14th sisyphus-ppcg 🇦🇺 836 73 130ms 16 Mar 2022 14th DaCuteRaccoon 836 73 175ms 30 Nov 2022 14th DialFrost 🇸🇬 836 73 184ms 28 Jan 2023 14th scpchicken 🇵🇼 836 73 174ms 7 Mar 2023 14th pardouin 🇫🇷 836 73 161ms 21 Sep 2024 14th LostSyntax21 🇬🇧 836 73 188ms 8 Jan 2025 25th bforte 824 74 144ms 9 Dec 2018 25th annaproxy 824 74 152ms 12 Jan 2022 25th rak1507 🇬🇧 824 74 157ms 23 Feb 2022 25th snoozingnewt 🇺🇸 824 74 150ms 1 Sep 2024 25th Natanaelel 🇸🇪 824 74 157ms 31 May 2025 30th prplz 🇦🇺 813 75 158ms 12 Oct 2021 30th YAJUE114514 813 75 177ms 30 Jul 2025 32nd marcin7Cd 792 77 172ms 11 Mar 2020 32nd fuzzylojik-golf 🇺🇸 792 77 153ms 15 Sep 2025 34th treeowl 772 79 172ms 27 Feb 2019 34th user189032 772 79 184ms 29 May 2019 34th cbrt-x 772 79 165ms 15 Sep 2023 37th RussellEmerine 763 80 155ms 30 Nov 2019 37th iczelia 🇩🇪 763 80 173ms 5 days ago 39th Laar 753 81 177ms 1 Apr 2019 39th alomiF 753 81 171ms 5 Oct 2023 39th brimstonetrader 753 81 134ms 26 Jan 2024 42nd jared-hughes 744 82 158ms 11 Sep 2023 43rd guliyevemil1 🇦🇿 701 87 149ms 20 Apr 2020 43rd strout 701 87 176ms 15 Dec 2023 45th Irratix 🇳🇱 685 89 166ms 23 Sep 2021 46th boxjelly 670 91 184ms 22 Jan 2021 47th Johannesd3 635 96 154ms 1 Jul 2019 48th achimkrause 629 97 137ms 15 Dec 2019 49th olligobber 🇦🇺 616 99 160ms 20 May 2020 50th yanqui-uxo 610 100 165ms 4 Sep 2018 50th HolmDev 610 100 180ms 3 Sep 2025 52nd stifflerus 581 105 159ms 12 Sep 2018 52nd Informagier 581 105 186ms 16 Sep 2020 54th anastos 570 107 148ms 23 Jul 2018 55th drbalan 565 108 176ms 20 Jul 2020 56th HallMatthew314 560 109 134ms 14 Feb 2022 57th fruno-bulax 526 116 202ms 16 Feb 2019 58th jtaxen 517 118 137ms 24 Jun 2024 59th gbxdl 508 120 146ms 7 Jan 2021 60th schaeffm 496 123 173ms 8 Oct 2019 60th hjcafaroUC 496 123 174ms 9 Aug 2020 62nd darrell-roberts 473 129 175ms 28 Feb 2020 63rd hymanimy 455 134 182ms 18 Aug 2021 64th mossprescott 449 136 160ms 10 Aug 2018 65th citsur 407 150 164ms 9 Jun 2019 65th Haksell 🇦🇶 407 150 127ms 1 Dec 2019 65th KatieLG 🇬🇧 407 150 103ms 23 Nov 2020 65th mokymok 🇺🇸 407 150 149ms 9 Nov 2021 65th retrohun 407 150 153ms 27 Dec 2022 65th KatieLG-Transpiler 🇬🇧 407 150 129ms 14 May 2023 65th HumanoidCPU 407 150 123ms 13 May 2024 65th Mabeloid 🇳🇴 407 150 109ms 20 Sep 2024 65th CaedenHarper 🇨🇦 407 150 122ms 25 Jan 2025 74th jiaminglimjm 🇲🇾 374 163 162ms 9 Jan 2021 75th zt14427 303 201 102ms 2 May 2023 1–75 of 76 Next Last