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 Minesweeper 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 Binary Lambda Calculus Calendar Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Minesweeper 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 Binary Lambda Calculus Calendar Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 901st jipsong 🇩🇪 705 116 296ms 25 Oct 2023 902nd fitzdotlol 🇺🇸 703 101 10ms 7 Mar 2022 902nd mrxz 🇳🇱 703 101 9ms 23 Jun 2024 904th Natanaelel 🇸🇪 702 62 48ms 21 Jun 2022 905th dokutan 701 84 965ms 14 Mar 2023 905th alemelis 701 84 838ms 21 Aug 2024 907th TobyBoyne 🇬🇧 701 126 10ms 28 Jan 2022 907th OllieBoyne 🇬🇧 701 126 12ms 2 Mar 2022 907th Anonymousellama21 701 126 10ms 14 Apr 2022 907th Trunksistor 🇫🇷 701 126 10ms 19 Apr 2022 907th docd 701 126 17ms 8 Aug 2022 907th LogicalJoe 701 126 18ms 4 May 2023 907th pde-bakk 🇳🇱 701 126 11ms 23 Oct 2023 907th mstang107 701 126 11ms 20 Dec 2023 907th DGipe 701 126 15ms 13 May 2024 907th retrohun 701 126 11ms 18 Oct 2024 907th yokasuretsu 701 126 10ms 23 Jan 2025 907th bknower 701 126 12ms 26 Jun 2025 919th inverseLorentz 🇦🇺 701 160 166ms 14 May 2024 920th TetraPengwin 700 124 2ms 14 Mar 2025 921st msbranicky 700 190 263ms 3 Oct 2023 922nd retrohun 697 75 2ms 9 Nov 2022 923rd DialFrost 🇸🇬 696 84 5ms 14 Aug 2024 924th ShiraJoseph 🇺🇸 696 102 10ms 28 Jan 2023 924th itserasmus 696 102 12ms 17 Jan 2024 924th eranws 696 102 10ms 23 Dec 2024 927th HumanoidCPU 696 158 61ms 3 Mar 2025 928th MeWhenI 🇻🇦 695 67 3ms 15 Apr 2023 929th jacklynnepenick 695 127 11ms 15 Feb 2022 929th Pena86 695 127 20ms 14 Sep 2022 929th pascscha 695 127 10ms 18 Sep 2022 929th DrPiranoid 695 127 10ms 8 Oct 2022 929th QuincyNash 🇺🇸 695 127 14ms 13 Nov 2022 929th epic-programmer-guy 695 127 12ms 21 Dec 2023 929th AdamMorris377 695 127 11ms 29 Jul 2024 929th 40fied4t 695 127 10ms 15 May 2025 929th Matter1024 🇮🇳 695 127 16ms 2 Jul 2025 929th Luke44565 695 127 11ms 10 Aug 2025 929th jacekwladzinski 695 127 14ms 5 Oct 2025 940th snoozingnewt 🇺🇸 694 110 474ms 14 Jan 2025 941st klixel 🇨🇦 694 174 156ms 7 Jun 2023 942nd albanian-laundromat 694 187 41ms 18 days ago 943rd emgordon154 694 213 1,687ms 17 Sep 2025 944th janbehrens 🇩🇪 693 85 308ms 23 Jun 2023 945th MeWhenI 🇻🇦 692 110 3,185ms 24 Oct 2024 946th HumanoidCPU 692 136 2ms 4 Mar 2025 947th Yewzir 🇧🇪 690 112 368ms 1 Dec 2023 947th michelebastione 🇮🇹 690 112 375ms 20 Sep 2025 949th gchenfc 690 128 10ms 24 Jan 2022 949th pyrolitic 🇮🇪 690 128 14ms 5 Apr 2022 949th hellwue 690 128 11ms 8 Feb 2023 949th Wildst 690 128 11ms 4 Aug 2023 949th sleepyStick 690 128 9ms 7 Dec 2023 949th damoose717 690 128 10ms 23 May 2025 949th RaBa21 🇭🇺 690 128 18ms 19 Jul 2025 956th janbehrens 🇩🇪 690 155 321ms 23 Jun 2023 957th gnuvince 689 45 2ms 29 Jun 2025 958th RockOfStone 689 126 2ms 30 Jul 2022 959th cbrt-x 689 163 160ms 18 Sep 2023 960th kkoenig 689 193 259ms 1 Jan 2024 960th rifatx 689 193 245ms 23 Jul 2024 962nd JunkIce 688 111 486ms 3 Dec 2024 962nd CheeseCake628 🇳🇴 688 111 581ms 26 days ago 964th MeWhenI 🇻🇦 687 81 255ms 28 Jan 2023 965th violeta-desantis 687 137 2ms 27 Sep 2023 966th amollberg 🇸🇪 684 129 11ms 21 Jan 2022 966th jfallon1997 684 129 10ms 18 Aug 2022 966th CameronGBell 684 129 10ms 10 Nov 2022 966th 2011-Chan-Ethan 684 129 18ms 20 Jul 2023 966th inverseLorentz 🇦🇺 684 129 11ms 8 Oct 2023 966th trsav 684 129 21ms 29 Oct 2023 966th aalec 684 129 18ms 24 Apr 2024 966th Europe2048 684 129 11ms 16 Mar 2025 966th pquline 684 129 11ms 23 Apr 2025 966th webmiche 684 129 10ms 10 days ago First Prev 901–975 of 1,528 Next Last
