Pernicious Numbers in all languages 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 368th lynn 939 41 2ms 11 Sep 2021 368th jared-hughes 939 41 2ms 28 Feb 2022 368th m-tkach 🇺🇦 939 41 2ms 24 Oct 2022 368th MeWhenI 🇻🇦 939 41 2ms 5 Nov 2022 368th Steffan153 🇫🇮 939 41 2ms 26 Nov 2022 368th DialFrost 🇸🇬 939 41 1ms 12 Jan 2023 368th sean-niemann 🇺🇸 939 41 2ms 12 Jan 2023 368th Shanethegamer 🇺🇸 939 41 1ms 6 Feb 2023 368th xsot 🇸🇬 939 41 2ms 9 Oct 2023 368th Betuaredead 939 41 1ms 12 Nov 2023 368th Yewzir 🇧🇪 939 41 2ms 14 Nov 2023 368th dokutan 939 41 1ms 26 Mar 2024 368th pardouin 🇫🇷 939 41 2ms 21 Sep 2024 368th FlyingPenguin223 939 41 2ms 23 Oct 2024 368th fuzzylojik-golf 🇺🇸 939 41 2ms 3 Jul 2025 368th edsrzf 🇳🇿 939 41 2ms 22 Jul 2025 392nd GrayJoKing 🇦🇺 939 55 320ms 21 Nov 2021 392nd JayXon 🇺🇸 939 55 333ms 21 Nov 2021 392nd Lydxn 🇨🇦 939 55 334ms 21 Nov 2021 392nd lynn 939 55 357ms 21 Nov 2021 392nd NewDefectus 🇮🇱 939 55 317ms 21 Nov 2021 392nd primo-ppcg 🇹🇭 939 55 331ms 21 Nov 2021 392nd prplz 🇦🇺 939 55 313ms 21 Nov 2021 392nd sisyphus-ppcg 🇦🇺 939 55 326ms 21 Nov 2021 392nd inventshah 939 55 355ms 18 Jun 2022 392nd m-tkach 🇺🇦 939 55 318ms 26 Jun 2022 392nd sean-niemann 🇺🇸 939 55 393ms 3 Nov 2022 392nd stefangimmillaro 939 55 334ms 4 Nov 2022 392nd MeWhenI 🇻🇦 939 55 338ms 5 Nov 2022 392nd Steffan153 🇫🇮 939 55 353ms 26 Nov 2022 392nd annaproxy 939 55 326ms 8 Jan 2023 392nd DialFrost 🇸🇬 939 55 311ms 12 Jan 2023 392nd Shanethegamer 🇺🇸 939 55 332ms 6 Feb 2023 392nd btnlq 939 55 322ms 10 Mar 2023 392nd namelessiw 939 55 306ms 22 Jul 2023 392nd Yewzir 🇧🇪 939 55 369ms 11 Oct 2023 392nd AdrienHache 🇫🇷 939 55 346ms 21 Oct 2023 392nd Betuaredead 939 55 326ms 11 Nov 2023 392nd pardouin 🇫🇷 939 55 326ms 18 Aug 2024 392nd voytxt 🇨🇿 939 55 301ms 19 Jan 2025 392nd b-illy 🇬🇧 939 55 377ms 21 Jan 2025 392nd fuzzylojik-golf 🇺🇸 939 55 340ms 29 May 2025 392nd Yax42 🇫🇷 939 55 306ms 31 May 2025 392nd edsrzf 🇳🇿 939 55 360ms 22 Jul 2025 392nd CaedenHarper 🇨🇦 939 55 348ms 4 Sep 2025 392nd snoozingnewt 🇺🇸 939 55 2 days ago 422nd Yewzir 🇧🇪 937 16 38ms 18 Feb 2024 422nd emgordon154 937 16 39ms 19 Mar 2025 424th GrayJoKing 🇦🇺 937 33 3ms 20 May 2021 424th primo-ppcg 🇹🇭 937 33 4ms 20 May 2021 424th Lydxn 🇨🇦 937 33 3ms 29 May 2022 427th AdrienHache 🇫🇷 936 32 47ms 31 Oct 2024 428th JayXon 🇺🇸 936 38 87ms 27 Sep 2021 428th Lydxn 🇨🇦 936 38 95ms 27 Sep 2021 428th stefangimmillaro 936 38 99ms 4 Nov 2022 428th MeWhenI 🇻🇦 936 38 94ms 5 Nov 2022 428th Shanethegamer 🇺🇸 936 38 95ms 6 Feb 2023 428th DialFrost 🇸🇬 936 38 94ms 6 Feb 2023 428th Steffan153 🇫🇮 936 38 93ms 7 Feb 2023 428th sean-niemann 🇺🇸 936 38 93ms 7 Feb 2023 428th ovs-code 🇩🇪 936 38 91ms 17 Jul 2023 428th Yewzir 🇧🇪 936 38 98ms 11 Oct 2023 428th Betuaredead 936 38 87ms 11 Nov 2023 428th dokutan 936 38 95ms 28 Jul 2024 428th pardouin 🇫🇷 936 38 86ms 20 Aug 2024 428th primo-ppcg 🇹🇭 936 38 105ms 12 Apr 2025 428th edsrzf 🇳🇿 936 38 87ms 22 Jul 2025 428th fuzzylojik-golf 🇺🇸 936 38 95ms 7 Aug 2025 428th snoozingnewt 🇺🇸 936 38 46 hours ago 445th henkma 934 51 129ms 26 Jun 2020 445th lynn 934 51 174ms 8 Oct 2021 447th prplz 🇦🇺 934 55 141ms 13 Jan 2022 447th GrayJoKing 🇦🇺 934 55 131ms 13 Jan 2022 447th JayXon 🇺🇸 934 55 127ms 13 Jan 2022 447th Lydxn 🇨🇦 934 55 139ms 13 Jan 2022 First Prev 376–450 of 3,221 Next Last