ISBN in Java in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Tower of Hanoi 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 Continued Fractions 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 Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 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 Erlang 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 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 Tower of Hanoi 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 Continued Fractions 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 Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 1st rucin93 🇵🇱 1,000 116 343ms 24 Sep 2025 1st sean-niemann 🇺🇸 1,000 116 341ms 24 Sep 2025 1st JayXon 🇺🇸 1,000 116 338ms 25 Sep 2025 1st nwellnhof 🇩🇪 1,000 116 348ms 25 Sep 2025 1st MeWhenI 🇻🇦 1,000 116 335ms 25 days ago 6th stefangimmillaro 991 117 345ms 6 Oct 2025 7th Shanethegamer 🇺🇸 983 118 335ms 24 Sep 2025 8th DialFrost 🇸🇬 975 119 338ms 24 Sep 2025 8th Yewzir 🇧🇪 975 119 342ms 24 Sep 2025 8th namelessiw 975 119 359ms 7 Oct 2025 11th ScottHamper 959 121 345ms 2 days ago 12th Yax42 🇫🇷 951 122 356ms 8 Oct 2025 13th edsrzf 🇳🇿 935 124 330ms 24 Sep 2025 13th dokutan 935 124 344ms 24 Sep 2025 15th CaedenHarper 🇨🇦 928 125 350ms 3 Oct 2025 16th HumanoidCPU 913 127 342ms 25 days ago 17th m-tkach 🇺🇦 892 130 340ms 25 Sep 2025 18th error256 879 132 352ms 12 days ago 19th h3ra993huskp 🇯🇵 872 133 347ms 3 days ago 20th kmathis22 841 138 346ms 30 Oct 2025 21st primo-ppcg 🇹🇭 806 144 311ms 4 Apr 2022 21st Lydxn 🇨🇦 806 144 305ms 5 Apr 2022 21st rotary-o 🇯🇵 806 144 318ms 5 May 2023 21st Steffan153 🇫🇮 806 144 305ms 24 Feb 2024 21st Jacob385 806 144 348ms 28 Oct 2025 26th KasperKivimaeki 🇫🇮 773 150 343ms 31 hours ago 27th janbehrens 🇩🇪 748 155 321ms 23 Jun 2023 28th bac0id 730 159 314ms 26 Sep 2023 29th Schmitt-Very-Cool 725 160 344ms 30 Sep 2025 30th cbrt-x 707 164 335ms 16 Jan 2022 31st bwat2 695 167 324ms 13 Jan 2022 31st rifatx 695 167 320ms 23 Jul 2024 33rd crizin 🇰🇷 682 170 313ms 10 Sep 2023 34th MaliPatuljak 667 174 314ms 3 Apr 2023 35th msbranicky 663 175 304ms 8 Sep 2023 35th Apataras 663 175 311ms 25 Aug 2025 37th ravnskjaer 🇩🇰 655 177 315ms 20 Dec 2024 38th aliakseikalosha 648 179 312ms 8 Oct 2024 39th yoshykai 592 196 318ms 28 Mar 2025 40th david-m-s 560 207 308ms 27 Feb 2023 41st luca1339 545 213 313ms 15 Jun 2024 42nd KatieLG 🇬🇧 525 221 311ms 24 Jan 2023 43rd KatieLG-Transpiler 🇬🇧 201 578 333ms 7 Jul 2022 1–43 of 43
