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ISBN in all languages 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 599th mathisfun271 803 115 2ms 5 Feb 2024 602nd Yewzir 🇧🇪 803 218 1,674ms 8 days ago 603rd akshatj27 🇦🇶 800 68 39ms 10 Jan 2022 603rd SirBogman 🇺🇸 800 68 39ms 19 May 2022 603rd Shanethegamer 🇺🇸 800 68 37ms 27 May 2022 603rd Haksell 🇦🇶 800 68 42ms 23 Feb 2023 603rd anter69 🇭🇺 800 68 39ms 20 Nov 2023 603rd blaztoma 🇱🇹 800 68 40ms 7 days ago 609th stefangimmillaro 800 152 151ms 28 Oct 2023 610th Shanethegamer 🇺🇸 799 115 425ms 21 Apr 2022 611th igmcdowell 798 89 11ms 24 Feb 2022 611th inventshah 798 89 11ms 21 Jun 2022 611th olleicua 🇺🇸 798 89 10ms 3 Feb 2024 611th kpal81xd 798 89 10ms 15 Sep 2024 615th adyache 🇺🇸 798 92 9ms 2 Aug 2023 616th prplz 🇦🇺 796 70 396ms 19 Jan 2022 616th SirBogman 🇺🇸 796 70 219ms 19 May 2022 618th error256 796 74 804ms 13 Feb 2026 619th neihousaigaai 796 111 11ms 11 Jan 2022 619th knutae 🇳🇴 796 111 11ms 18 Jan 2022 619th rschwa6308 🇺🇸 796 111 11ms 22 Mar 2023 619th zbreit 🇺🇸 796 111 11ms 22 Mar 2023 619th plcc0 796 111 10ms 3 Mar 2025 619th emgordon154 796 111 11ms 25 Mar 2025 619th BREMAUCY 🇫🇷 796 111 10ms 15 Apr 2025 619th now4est 🇯🇵 796 111 12ms 25 Sep 2025 627th MeWhenI 🇻🇦 796 116 2ms 5 Jul 2024 628th SirBogman 🇺🇸 795 39 42ms 4 Oct 2022 629th DialFrost 🇸🇬 795 90 138ms 3 Nov 2024 630th ovs-code 🇩🇪 795 153 240ms 21 Jun 2023 631st KrausRaus 🇺🇸 794 106 5ms 11 Nov 2023 632nd Salutations45 792 66 2ms 2 Jan 2025 633rd Shanethegamer 🇺🇸 792 90 2,665ms 28 Oct 2024 634th prestosilver 🇺🇸 792 116 412ms 4 days ago 635th sean-niemann 🇺🇸 792 127 40ms 1 Dec 2023 636th edsrzf 🇳🇿 792 133 1,541ms 26 Apr 2025 637th GrayJoKing 🇦🇺 791 59 3ms 14 Jan 2022 637th Shanethegamer 🇺🇸 791 59 3ms 20 Jun 2022 639th DialFrost 🇸🇬 791 113 151ms 24 May 2025 640th tomh1012 790 98 468ms 31 Jan 2022 640th pkim 790 98 479ms 6 Apr 2023 640th danielxbauer 790 98 472ms 6 Apr 2023 640th meinsiedler 790 98 482ms 6 Apr 2023 640th postie77 790 98 469ms 8 May 2023 640th arcpolaris 790 98 447ms 18 days ago 646th m-tkach 🇺🇦 790 117 1ms 11 Jan 2022 646th prestosilver 🇺🇸 790 117 2ms 16 Dec 2025 648th weliveinhell 🇭🇹 789 90 9ms 11 Jan 2024 649th guilhem-roy 🇫🇷 789 112 12ms 5 Jun 2022 649th ahmetdemirag 🇨🇾 789 112 12ms 30 Jun 2024 649th CommandLeo 🇮🇹 789 112 15ms 3 Nov 2025 649th denkyuu1 789 112 11ms 23 Feb 2026 653rd dokutan 789 130 7ms 21 Jun 2024 654th lynn 789 154 164ms 11 Mar 2022 654th The3gs 789 154 168ms 18 Aug 2023 656th 4hg 🇺🇸 788 69 40ms 30 Nov 2022 656th Andriamanitra 🇫🇮 788 69 37ms 17 Apr 2023 658th MeWhenI 🇻🇦 788 137 2ms 12 Sep 2022 659th LHLaurini 🇧🇷 788 141 59ms 17 Jul 2024 660th SirBogman 🇺🇸 787 96 518ms 16 Jan 2024 661st DialFrost 🇸🇬 787 166 40ms 7 May 2025 662nd msbranicky 786 112 2ms 10 Oct 2023 663rd MichalMarsalek 🇨🇿 785 117 418ms 21 Apr 2022 664th imperfect-fourth 785 170 328ms 16 Mar 2026 665th edsrzf 🇳🇿 784 155 289ms 23 Mar 2026 666th DialFrost 🇸🇬 783 91 2,711ms 25 Oct 2024 667th sean-niemann 🇺🇸 783 118 1ms 3 Feb 2024 668th AlephSquirrel 783 130 6ms 21 Oct 2024 669th DialFrost 🇸🇬 783 241 1,213ms 18 Apr 2025 670th Skleni 782 99 472ms 6 Apr 2023 671st commandz0 🇺🇸 782 113 12ms 3 Nov 2022 671st jakobkordez 🇸🇮 782 113 10ms 13 Nov 2022 671st mossprescott 782 113 10ms 16 Jan 2023 671st SB-945 782 113 11ms 19 Aug 2023 671st davitf 782 113 10ms 30 Apr 2024 671st kbeat 🇰🇿 782 113 11ms 18 May 2025 677th albanian-laundromat 🇺🇸 782 167 43ms 19 Mar 2026 678th MeWhenI 🇻🇦 782 224 1,712ms 7 days ago 679th adamnielson42 🇺🇸 781 91 11ms 26 Apr 2023 679th luuumine 🇫🇷 781 91 11ms 12 Nov 2025 681st Shanethegamer 🇺🇸 781 104 65ms 4 Dec 2024 682nd Shanethegamer 🇺🇸 781 161 41ms 13 Feb 2025 683rd frankgraziano 780 130 7ms 22 Feb 2026 684th MeWhenI 🇻🇦 779 43 4ms 1 Mar 2025 685th lifthrasiir 🇰🇷 779 97 505ms 2 Dec 2024 686th andersk 🇺🇸 779 156 244ms 30 Oct 2022 686th emgordon154 779 156 239ms 14 Mar 2025 688th JRaspass 🇬🇧 778 60 3ms 18 Jan 2023 689th stefangimmillaro 778 76 1,384ms 8 Jan 2023 689th MeWhenI 🇻🇦 778 76 1,271ms 10 May 2023 689th error256 778 76 1,439ms 14 Feb 2025 692nd primo-ppcg 🇹🇭 778 118 383ms 9 Apr 2022 693rd Steffan153 🇫🇮 778 132 14ms 5 Jul 2024 694th denkyuu1 777 70 38ms 18 Feb 2026 695th Yewzir 🇧🇪 777 115 195ms 26 Dec 2023 696th primo-ppcg 🇹🇭 777 131 7ms 20 Jan 2023 697th kmathis22 777 138 475ms 30 Oct 2025 698th Shanethegamer 🇺🇸 776 76 426ms 12 Oct 2022 699th call23re 776 112 2ms 12 Jan 2022 700th LHLaurini 🇧🇷 776 119 1ms 17 Jul 2024 First Prev 601–700 of 1,706 Next Last