ISBN in Python 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 Continued Fractions 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 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 ><> ALGOL 68 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 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 ><> ALGOL 68 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 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 Continued Fractions 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 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 GrayJoKing 🇦🇺 1,000 91 10ms 21 Jun 2024 1st Rubiksmath 1,000 91 16ms 28 Jun 2024 1st khvdm 1,000 91 16ms 3 hours ago 4th Lydxn 🇨🇦 978 93 10ms 23 Jan 2022 5th xnor-gate 968 94 16ms 30 Jul 2024 5th pardouin 🇫🇷 968 94 17ms 26 Sep 2024 7th JayXon 🇺🇸 948 96 25ms 21 Jun 2024 8th nwellnhof 🇩🇪 938 97 10ms 18 Jul 2023 8th Steffan153 🇫🇮 938 97 16ms 21 Jun 2024 8th ovs-code 🇩🇪 938 97 17ms 5 Jul 2024 8th 4atj 938 97 16ms 30 Jun 2025 12th btnlq 929 98 9ms 10 Jan 2022 12th primo-ppcg 🇹🇭 929 98 11ms 13 Jan 2022 12th m-tkach 🇺🇦 929 98 17ms 18 Jul 2023 12th bizy-coder 929 98 11ms 25 Jul 2024 12th sean-niemann 🇺🇸 929 98 17ms 28 Jan 2025 17th AlephSquirrel 919 99 10ms 21 Jul 2023 17th Seek64 🇩🇪 919 99 10ms 24 Sep 2024 17th kg583 🇺🇸 919 99 10ms 30 Nov 2025 17th jared-hughes 919 99 10ms 30 Nov 2025 21st hallvabo 🇳🇴 910 100 10ms 11 Jan 2022 21st xsot 🇸🇬 910 100 11ms 21 Jul 2023 21st inventshah 910 100 10ms 3 Aug 2023 21st StefanHabel 🇨🇦 910 100 10ms 5 Sep 2023 21st neel11235813 910 100 10ms 9 Nov 2023 21st MeWhenI 🇻🇦 910 100 10ms 7 Dec 2023 21st lynn 910 100 9ms 21 Jun 2024 21st duckyluuk 🇳🇱 910 100 10ms 21 Jun 2024 21st DialFrost 🇸🇬 910 100 10ms 28 Jun 2024 21st Mukundan314 910 100 10ms 30 Apr 2025 21st ryyyn 🇺🇸 910 100 10ms 28 Oct 2025 21st CaedenHarper 🇨🇦 910 100 10ms 30 Nov 2025 33rd GolfingSuccess 🇬🇷 901 101 10ms 10 Jan 2022 33rd annaproxy 901 101 10ms 15 Jan 2022 33rd 0e4ef622 901 101 10ms 21 Jun 2022 33rd Shanethegamer 🇺🇸 901 101 10ms 20 Oct 2022 33rd bricknellj 901 101 9ms 22 Jun 2024 33rd keelimeguy 🇺🇸 901 101 11ms 15 May 2025 39th anter69 🇭🇺 892 102 9ms 13 Jan 2022 39th Irratix 🇳🇱 892 102 9ms 5 Jul 2022 39th b10011 🇫🇮 892 102 10ms 14 Jan 2023 39th CornerMercury 🇬🇧 892 102 9ms 13 Sep 2023 39th ndren 892 102 10ms 4 Oct 2023 39th zacjl 892 102 10ms 21 Oct 2023 39th Just4FunCoder 892 102 9ms 17 Feb 2024 39th Yewzir 🇧🇪 892 102 10ms 22 Jun 2024 39th bzijlema 🇳🇱 892 102 10ms 15 Oct 2024 39th moustave 892 102 10ms 25 Jun 2025 39th blaztoma 🇱🇹 892 102 10ms 9 Oct 2025 39th Babafaba 892 102 10ms 28 Nov 2025 39th Flekay 🇩🇪 892 102 11ms 12 days ago 39th FoxInTheClouds 892 102 10ms 12 days ago 39th snoozingnewt 🇨🇦 892 102 11ms 11 days ago 54th SirBogman 🇺🇸 883 103 10ms 10 May 2022 54th janbehrens 🇩🇪 883 103 9ms 23 Jun 2023 54th FlorianCassayre 🇫🇷 883 103 9ms 9 Sep 2023 54th orthoplex 🇨🇽 883 103 10ms 25 Nov 2023 54th abc7-12 883 103 10ms 26 Jun 2024 54th KatieLG 🇬🇧 883 103 10ms 8 Jul 2024 54th madex 🇩🇪 883 103 10ms 7 Aug 2025 54th Lv0Sys 🇵🇱 883 103 11ms 6 Dec 2025 54th FortuiteMan 🇫🇷 883 103 10ms 18 Dec 2025 54th firegene 🇮🇪 883 103 10ms 3 days ago 64th VictorFordham 875 104 10ms 20 Feb 2023 64th Alex-x90 🇺🇸 875 104 10ms 3 Aug 2023 64th mathisfun271 875 104 9ms 5 Feb 2024 64th EnTerr 875 104 10ms 8 Sep 2024 64th KasperKivimaeki 🇫🇮 875 104 10ms 11 Jul 2025 64th luuumine 🇫🇷 875 104 11ms 31 Oct 2025 70th TFeld00 🇩🇰 867 105 10ms 19 May 2022 70th stefangimmillaro 867 105 10ms 26 Dec 2022 70th betaveros 867 105 9ms 1 Jan 2023 70th 5cw 🇺🇸 867 105 10ms 3 May 2023 70th minhtrancccp 867 105 10ms 26 Sep 2023 70th lifthrasiir 🇰🇷 867 105 10ms 20 Nov 2024 70th Emutis 🇱🇹 867 105 10ms 4 Feb 2025 70th qpwoeirut 867 105 10ms 28 Sep 2025 78th Bulmenisaurus 858 106 10ms 2 Feb 2025 79th quimey 850 107 10ms 7 Mar 2023 79th fourth-bit 850 107 10ms 10 Jul 2024 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