ISBN 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 894th mstang107 700 126 11ms 20 Dec 2023 894th DGipe 700 126 15ms 13 May 2024 894th retrohun 700 126 11ms 18 Oct 2024 894th yokasuretsu 700 126 10ms 23 Jan 2025 894th bknower 700 126 12ms 26 Jun 2025 906th msbranicky 700 190 283ms 3 Oct 2023 907th TetraPengwin 699 124 2ms 14 Mar 2025 908th klixel 🇨🇦 699 174 167ms 7 Jun 2023 909th retrohun 697 75 2ms 9 Nov 2022 910th DialFrost 🇸🇬 696 84 5ms 14 Aug 2024 911th ShiraJoseph 🇺🇸 696 102 10ms 28 Jan 2023 911th itserasmus 696 102 10ms 17 Jan 2024 911th eranws 696 102 10ms 23 Dec 2024 914th HumanoidCPU 696 158 70ms 3 Mar 2025 915th MeWhenI 🇻🇦 695 67 3ms 15 Apr 2023 916th jacklynnepenick 695 127 11ms 15 Feb 2022 916th Pena86 695 127 20ms 14 Sep 2022 916th pascscha 695 127 10ms 18 Sep 2022 916th DrPiranoid 695 127 10ms 8 Oct 2022 916th QuincyNash 🇺🇸 695 127 14ms 13 Nov 2022 916th epic-programmer-guy 695 127 12ms 21 Dec 2023 916th AdamMorris377 695 127 11ms 29 Jul 2024 916th 40fied4t 695 127 10ms 15 May 2025 916th Matter1024 🇮🇳 695 127 16ms 2 Jul 2025 916th Luke44565 695 127 11ms 10 Aug 2025 916th jacekwladzinski 695 127 14ms 18 days ago 927th snoozingnewt 🇺🇸 694 110 474ms 14 Jan 2025 928th janbehrens 🇩🇪 693 85 308ms 23 Jun 2023 929th HumanoidCPU 692 136 2ms 4 Mar 2025 930th MeWhenI 🇻🇦 691 110 2,569ms 24 Oct 2024 931st janbehrens 🇩🇪 691 155 502ms 23 Jun 2023 931st HumanoidCPU 691 155 410ms 2 Mar 2025 933rd Yewzir 🇧🇪 690 112 368ms 1 Dec 2023 933rd michelebastione 🇮🇹 690 112 375ms 20 Sep 2025 935th gchenfc 690 128 10ms 24 Jan 2022 935th pyrolitic 🇮🇪 690 128 14ms 5 Apr 2022 935th hellwue 690 128 11ms 8 Feb 2023 935th Wildst 690 128 11ms 4 Aug 2023 935th sleepyStick 690 128 9ms 7 Dec 2023 935th damoose717 690 128 10ms 23 May 2025 935th RaBa21 🇭🇺 690 128 18ms 19 Jul 2025 942nd emgordon154 690 213 1,996ms 17 Sep 2025 943rd gnuvince 689 45 3ms 29 Jun 2025 944th cbrt-x 689 163 160ms 18 Sep 2023 945th kkoenig 689 193 303ms 1 Jan 2024 945th rifatx 689 193 286ms 23 Jul 2024 947th JunkIce 688 111 486ms 3 Dec 2024 947th CheeseCake628 🇳🇴 688 111 581ms 5 days ago 949th RockOfStone 688 126 2ms 30 Jul 2022 950th MeWhenI 🇻🇦 687 81 255ms 28 Jan 2023 951st violeta-desantis 687 137 2ms 27 Sep 2023 952nd amollberg 🇸🇪 684 129 11ms 21 Jan 2022 952nd jfallon1997 684 129 10ms 18 Aug 2022 952nd CameronGBell 684 129 10ms 10 Nov 2022 952nd 2011-Chan-Ethan 684 129 18ms 20 Jul 2023 952nd inverseLorentz 🇦🇺 684 129 11ms 8 Oct 2023 952nd trsav 684 129 21ms 29 Oct 2023 952nd aalec 684 129 18ms 24 Apr 2024 952nd Europe2048 684 129 11ms 16 Mar 2025 952nd pquline 684 129 11ms 23 Apr 2025 961st a6166231 🇨🇳 682 104 10ms 29 May 2025 962nd Stockoh 🇫🇷 682 112 590ms 24 Jun 2024 963rd Yewzir 🇧🇪 681 93 1,107ms 5 Feb 2025 964th Shanethegamer 🇺🇸 680 86 4ms 14 Aug 2024 965th varhammer 🇷🇺 680 152 9ms 7 Nov 2024 966th AkashTandon167 679 130 10ms 18 Jan 2022 966th feherd 679 130 22ms 16 Apr 2022 966th caraar12345 679 130 13ms 27 May 2022 966th ordinary-slim 679 130 11ms 18 Nov 2022 966th bonevbs 679 130 11ms 18 Nov 2022 966th mbittner20 679 130 14ms 27 May 2023 966th resoNathan 679 130 11ms 13 May 2024 966th codingisgreatbutiamnot 679 130 11ms 9 Aug 2024 966th NanduBC 679 130 10ms 3 Sep 2024 975th IlkkaTakala 679 162 72ms 1 Dec 2023 First Prev 901–975 of 1,513 Next Last
