Evil Numbers in Haskell in bytes. 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 Bytes Time Submitted 1st JayXon 🇺🇸 1,000 50 106ms 8 Mar 2021 1st Lydxn 🇨🇦 1,000 50 136ms 10 Mar 2022 1st henkma 1,000 50 125ms 30 May 2023 1st Steffan153 🇫🇮 1,000 50 147ms 6 Aug 2024 1st sean-niemann 🇺🇸 1,000 50 133ms 7 Jan 2025 6th xnor-gate 980 51 129ms 11 May 2021 6th lynn 980 51 127ms 11 May 2021 6th HPWiz 🇳🇿 980 51 130ms 8 Oct 2021 9th primo-ppcg 🇹🇭 943 53 111ms 3 Jul 2019 9th marcin7Cd 943 53 128ms 13 Mar 2020 9th ssiquoya 🇷🇺 943 53 133ms 12 Jun 2021 9th Shanethegamer 🇺🇸 943 53 128ms 22 Mar 2023 13th andersk 🇺🇸 926 54 150ms 24 Mar 2020 14th ovs-code 🇩🇪 893 56 114ms 17 Nov 2023 15th Sakisan 🇧🇪 877 57 137ms 10 May 2022 15th kops-cg 877 57 113ms 16 Feb 2025 17th khuldraeseth 862 58 146ms 26 Aug 2019 17th ReidZ3 🇺🇸 862 58 125ms 6 Dec 2020 17th arjanadriaanse 🇳🇱 862 58 140ms 10 Feb 2022 17th yzhs 🇩🇪 862 58 132ms 21 Jun 2023 17th DialFrost 🇸🇬 862 58 156ms 6 Aug 2024 17th YAJUE114514 862 58 131ms 28 Jul 2025 23rd Bubbler-4 847 59 175ms 17 Jan 2019 23rd GrayJoKing 🇦🇺 847 59 130ms 5 Dec 2020 25th aDwarfNamedUrist 833 60 130ms 6 Sep 2023 25th Natanaelel 🇸🇪 833 60 166ms 11 May 2025 27th bforte 820 61 139ms 29 Dec 2018 27th annaproxy 820 61 128ms 24 Jan 2022 29th laikoni 806 62 133ms 27 Feb 2019 29th RussellEmerine 806 62 144ms 30 Nov 2019 29th Awsute 806 62 130ms 21 Apr 2022 29th pardouin 🇫🇷 806 62 155ms 5 Sep 2024 33rd ashtraypettingzoo 🇺🇸 794 63 142ms 11 Feb 2023 33rd jared-hughes 794 63 146ms 13 Sep 2023 35th treeowl 781 64 144ms 27 Feb 2019 35th the-zammers 781 64 161ms 10 Nov 2023 37th prplz 🇦🇺 769 65 133ms 30 Nov 2020 37th cbrt-x 769 65 124ms 15 Sep 2023 37th tobeannouncd 769 65 140ms 3 Jan 2024 40th fruno-bulax 758 66 108ms 16 Feb 2019 40th aionescu 758 66 139ms 1 Dec 2020 40th lambda-fairy 🇳🇿 758 66 148ms 11 Apr 2021 40th hymanimy 758 66 115ms 18 Aug 2021 40th GregsAStar 758 66 131ms 7 May 2022 40th strout 758 66 135ms 15 Aug 2022 40th Andriamanitra 🇫🇮 758 66 140ms 22 Sep 2022 40th snoozingnewt 🇺🇸 758 66 119ms 2 Jun 2024 48th hansdude 746 67 112ms 13 Sep 2020 48th Irratix 🇳🇱 746 67 116ms 1 Oct 2021 48th brimstonetrader 746 67 136ms 26 Jan 2024 51st abailey2020 🇺🇸 735 68 160ms 9 Apr 2019 51st mhgockel 735 68 133ms 11 May 2023 51st dokutan 735 68 131ms 17 Jul 2025 51st HolmDev 735 68 134ms 16 Sep 2025 51st jacekwladzinski 735 68 111ms 14 days ago 56th yanqui-uxo 725 69 134ms 15 Sep 2018 56th antimon2 🇯🇵 725 69 148ms 14 Jul 2020 58th user189032 714 70 139ms 29 May 2019 59th anastos 704 71 142ms 23 Jul 2018 59th boxjelly 704 71 132ms 1 Jan 2021 59th HallMatthew314 704 71 130ms 14 Feb 2022 62nd flawr 658 76 141ms 22 Feb 2019 62nd archaephyrryx 658 76 148ms 17 Oct 2020 62nd alomiF 658 76 132ms 12 Oct 2023 65th inverseLorentz 🇦🇺 633 79 107ms 9 May 2024 66th achimkrause 617 81 128ms 11 Jul 2018 66th XaavanDolence 617 81 144ms 7 Sep 2020 68th schaeffm 602 83 134ms 8 Oct 2019 69th wiebecommajonas 595 84 131ms 30 Nov 2022 70th citsur 588 85 148ms 2 Jun 2019 71st darrell-roberts 581 86 155ms 27 Feb 2020 71st MeWhenI 🇻🇦 581 86 120ms 25 Jul 2021 71st anter69 🇭🇺 581 86 148ms 26 Jan 2023 74th hjcafaroUC 556 90 123ms 8 Aug 2020 74th jtaxen 556 90 112ms 16 Jun 2024 1–75 of 96 Next Last