ISBN 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 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 375th drabart 🇵🇱 828 113 18 Dec 2023 377th drabart 🇵🇱 828 132 16 Dec 2023 378th m-tkach 🇺🇦 828 158 10 Jan 2022 379th Sakisan 🇧🇪 827 64 30 Jun 2022 380th jacobly0 🇺🇸 827 104 11 Sep 2023 381st MichalMarsalek 🇨🇿 826 117 21 Apr 2022 382nd acotis 826 146 30 May 2025 383rd emplv 🇱🇻 826 160 6 Jan 2023 384th prplz 🇦🇺 825 93 18 Jan 2022 384th hemphen 825 93 28 Aug 2022 384th feberhard 825 93 6 Apr 2023 384th sean-niemann 🇺🇸 825 93 19 Apr 2025 388th emplv 🇱🇻 823 101 3 Jul 2023 388th stefangimmillaro 823 101 12 Oct 2023 390th Steffan153 🇫🇮 823 135 12 Mar 2023 391st SirBogman 🇺🇸 822 37 27 May 2024 391st Yewzir 🇧🇪 822 37 19 Dec 2024 393rd dcgjb 822 67 14 Feb 2024 394th DialFrost 🇸🇬 822 91 25 Oct 2024 395th Alex-x90 🇺🇸 822 133 8 Aug 2023 395th Yewzir 🇧🇪 822 133 29 Nov 2023 397th bac0id 822 159 26 Sep 2023 398th Yewzir 🇧🇪 821 76 22 Jun 2024 398th Shanethegamer 🇺🇸 821 76 10 Dec 2024 400th Mandrzejy 🇵🇱 821 114 13 Sep 2024 401st jeff-at-tamer-dot-codes 🇺🇸 820 84 19 May 2023 401st Artemis21 🇬🇧 820 84 10 Jan 2025 401st snoozingnewt 🇺🇸 820 84 14 Jan 2025 404th Bubbler-4 819 48 15 Nov 2022 404th stackofbears 819 48 27 Dec 2023 406th primo-ppcg 🇹🇭 819 118 9 Apr 2022 407th Shanethegamer 🇺🇸 817 63 13 May 2023 408th annaproxy 816 94 19 Mar 2022 409th Mandrzejy 🇵🇱 816 134 13 Sep 2024 410th jared-hughes 816 200 18 Dec 2024 411th o0lit3 🇺🇸 815 51 11 Jan 2022 412th Steffan153 🇫🇮 815 82 11 Jul 2024 413th MeWhenI 🇻🇦 815 102 26 Nov 2023 414th Shanethegamer 🇺🇸 815 107 24 May 2025 415th primo-ppcg 🇹🇭 815 164 25 Jun 2022 416th JayXon 🇺🇸 814 55 25 Feb 2022 417th madex 🇩🇪 814 115 10 Apr 2022 417th FragmentedCurve 814 115 22 Nov 2023 417th mathisfun271 814 115 5 Feb 2024 420th saito-ta 🇯🇵 813 32 19 Aug 2022 420th canissimia 🇦🇶 813 32 19 Aug 2022 422nd h3ra993huskp 🇯🇵 812 161 7 Jan 2024 423rd m42km 811 85 24 Oct 2023 423rd emgordon154 811 85 1 Aug 2024 423rd JunkIce 811 85 25 Nov 2024 426th itsh01 811 87 13 Mar 2022 426th AlephSquirrel 811 87 15 Feb 2023 426th danielphilpottwork 811 87 20 Dec 2023 426th Attero 🇸🇪 811 87 22 Dec 2023 430th MeWhenI 🇻🇦 811 101 23 May 2023 431st btnlq 811 125 12 Jan 2022 432nd sean-niemann 🇺🇸 811 163 30 Aug 2023 432nd Yewzir 🇧🇪 811 163 7 Feb 2024 434th KatieLG 🇬🇧 810 77 28 Oct 2024 435th DialFrost 🇸🇬 810 118 27 Nov 2024 436th Irratix 🇳🇱 810 135 14 May 2022 437th janbehrens 🇩🇪 807 103 2 Jul 2023 438th MeWhenI 🇻🇦 807 116 5 Jul 2024 439th MeWhenI 🇻🇦 806 105 9 May 2024 440th ovs-code 🇩🇪 805 90 12 Sep 2024 440th primo-ppcg 🇹🇭 805 90 5 Apr 2025 442nd jotslo 🇬🇧 804 107 17 Jul 2022 443rd Shanethegamer 🇺🇸 804 136 20 Apr 2022 444th 5cw 🇺🇸 801 38 27 May 2024 445th m-tkach 🇺🇦 800 117 11 Jan 2022 446th ScottHamper 799 96 26 Feb 2022 446th stefangimmillaro 799 96 5 Jan 2023 446th bojernico 799 96 6 Apr 2023 449th Ripick 799 121 11 Jul 2024 450th m-tkach 🇺🇦 798 137 15 Jan 2022 Prev 376–450 of 1,419 Next