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 Calendar 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 Multitap Input 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 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 Numbrix 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar 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 Multitap Input 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 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 Numbrix 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 389ms 24 Sep 2025 1st sean-niemann 🇺🇸 1,000 116 472ms 24 Sep 2025 1st JayXon 🇺🇸 1,000 116 485ms 25 Sep 2025 1st nwellnhof 🇩🇪 1,000 116 484ms 25 Sep 2025 1st MeWhenI 🇻🇦 1,000 116 466ms 7 Nov 2025 1st Steffan153 🇫🇮 1,000 116 364ms 6 hours ago 7th stefangimmillaro 991 117 363ms 6 Oct 2025 8th Shanethegamer 🇺🇸 983 118 386ms 24 Sep 2025 9th DialFrost 🇸🇬 975 119 370ms 24 Sep 2025 9th Yewzir 🇧🇪 975 119 582ms 24 Sep 2025 9th namelessiw 975 119 399ms 7 Oct 2025 12th ScottHamper 959 121 484ms 30 Nov 2025 13th Yax42 🇫🇷 951 122 493ms 8 Oct 2025 14th edsrzf 🇳🇿 935 124 516ms 24 Sep 2025 14th dokutan 935 124 491ms 24 Sep 2025 16th CaedenHarper 🇨🇦 928 125 751ms 3 Oct 2025 17th HumanoidCPU 913 127 504ms 8 Nov 2025 18th m-tkach 🇺🇦 892 130 607ms 25 Sep 2025 19th error256 879 132 385ms 21 Nov 2025 20th h3ra993huskp 🇯🇵 872 133 501ms 30 Nov 2025 21st kmathis22 841 138 504ms 30 Oct 2025 22nd primo-ppcg 🇹🇭 806 144 419ms 4 Apr 2022 22nd Lydxn 🇨🇦 806 144 452ms 5 Apr 2022 22nd rotary-o 🇯🇵 806 144 468ms 5 May 2023 22nd Jacob385 806 144 579ms 28 Oct 2025 26th KasperKivimaeki 🇫🇮 779 149 459ms 12 Dec 2025 26th ravnskjaer 🇩🇰 779 149 432ms 15 Dec 2025 28th janbehrens 🇩🇪 748 155 432ms 23 Jun 2023 29th bac0id 730 159 424ms 26 Sep 2023 30th Schmitt-Very-Cool 725 160 496ms 30 Sep 2025 31st cbrt-x 707 164 447ms 16 Jan 2022 32nd bwat2 695 167 433ms 13 Jan 2022 32nd rifatx 695 167 444ms 23 Jul 2024 34th crizin 🇰🇷 682 170 432ms 10 Sep 2023 35th MaliPatuljak 667 174 433ms 3 Apr 2023 36th msbranicky 663 175 418ms 8 Sep 2023 36th Apataras 663 175 442ms 25 Aug 2025 38th aliakseikalosha 648 179 440ms 8 Oct 2024 39th yoshykai 592 196 436ms 28 Mar 2025 40th david-m-s 560 207 475ms 27 Feb 2023 41st luca1339 545 213 426ms 15 Jun 2024 42nd KatieLG 🇬🇧 525 221 614ms 24 Jan 2023 43rd KatieLG-Transpiler 🇬🇧 201 578 452ms 7 Jul 2022 1–43 of 43
