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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 481st jared-hughes 831 200 8ms 18 Dec 2024 482nd Shanethegamer 🇺🇸 830 63 1ms 13 May 2023 483rd rucin93 🇵🇱 830 86 145ms 14 Mar 2026 484th neel11235813 830 91 502ms 13 Mar 2024 484th kg583 🇺🇸 830 91 441ms 21 Mar 2024 484th bizy-coder 830 91 410ms 1 Apr 2024 484th MeWhenI 🇻🇦 830 91 489ms 24 May 2024 484th duckyluuk 🇳🇱 830 91 498ms 21 Jun 2024 484th AlephSquirrel 830 91 496ms 3 Jul 2024 484th CaedenHarper 🇨🇦 830 91 505ms 30 Nov 2025 491st Mandrzejy 🇵🇱 830 134 55ms 13 Sep 2024 492nd GrayJoKing 🇦🇺 828 130 2ms 12 Sep 2022 493rd CLOStrophobic 🇮🇹 827 123 8ms 21 Jan 2025 493rd kg583 🇺🇸 827 123 8ms 20 Feb 2026 495th quimey 826 107 13ms 7 Mar 2023 495th fourth-bit 826 107 10ms 10 Jul 2024 495th fuzzylojik-golf 🇺🇸 826 107 11ms 19 May 2025 495th solisolu 826 107 12ms 25 Nov 2025 499th MeWhenI 🇻🇦 825 102 5ms 26 Nov 2023 500th Shanethegamer 🇺🇸 825 112 1ms 20 Apr 2022 501st m-tkach 🇺🇦 825 130 515ms 25 Sep 2025 502nd primo-ppcg 🇹🇭 825 164 25ms 25 Jun 2022 503rd error256 824 66 37ms 8 May 2025 504th annaproxy 824 94 429ms 19 Mar 2022 505th GrayJoKing 🇦🇺 824 99 4ms 20 Sep 2023 506th Irratix 🇳🇱 823 135 412ms 14 May 2022 507th Frowny 822 53 32ms 11 Jan 2022 508th Steffan153 🇫🇮 822 134 36ms 19 hours ago 509th DialFrost 🇸🇬 822 286 140ms 22 Apr 2025 509th frankgraziano 822 286 651ms 31 Jan 2026 511th stefangimmillaro 821 87 2,551ms 24 Nov 2024 511th emgordon154 821 87 2,621ms 6 Mar 2025 513th inventshah 821 92 557ms 21 Jan 2024 513th GolfingSuccess 🇬🇷 821 92 501ms 2 Mar 2024 515th DialFrost 🇸🇬 821 118 461ms 27 Nov 2024 516th Shanethegamer 🇺🇸 821 124 7ms 27 Aug 2024 517th Steffan153 🇫🇮 820 57 3ms 6 Jan 2023 517th Natanaelel 🇸🇪 820 57 4ms 13 May 2023 519th DialFrost 🇸🇬 820 72 984ms 4 Sep 2025 520th sean-niemann 🇺🇸 819 163 335ms 30 Aug 2023 520th Yewzir 🇧🇪 819 163 325ms 7 Feb 2024 520th CaedenHarper 🇨🇦 819 163 326ms 2 Nov 2025 523rd prplz 🇦🇺 818 108 14ms 11 Jan 2022 523rd galloj 🇨🇿 818 108 10ms 21 Sep 2022 523rd TaserTheFox 🇺🇸 818 108 11ms 3 Apr 2023 523rd jatloe 818 108 10ms 26 Aug 2024 523rd cros107 🇦🇺 818 108 11ms 10 Aug 2025 528th Yewzir 🇧🇪 818 113 1ms 29 Nov 2023 528th drabart 🇵🇱 818 113 2ms 18 Dec 2023 530th btnlq 818 125 15ms 12 Jan 2022 531st GrayJoKing 🇦🇺 818 152 29ms 18 Jul 2023 531st m-tkach 🇺🇦 818 152 29ms 10 Feb 2026 533rd itsh01 817 87 12ms 13 Mar 2022 533rd AlephSquirrel 817 87 13ms 15 Feb 2023 533rd danielphilpottwork 817 87 12ms 20 Dec 2023 536th janbehrens 🇩🇪 817 103 4ms 2 Jul 2023 537th Shanethegamer 🇺🇸 817 136 86ms 20 Apr 2022 538th lynn 816 38 41ms 22 Jul 2022 538th MeWhenI 🇻🇦 816 38 44ms 25 Aug 2022 538th 5cw 🇺🇸 816 38 2ms 27 May 2024 538th emgordon154 816 38 3ms 8 Mar 2026 542nd GrayJoKing 🇦🇺 814 113 401ms 24 Jul 2025 543rd plcc0 814 125 7ms 23 Mar 2025 544th scpchicken 🇵🇼 813 55 144ms 13 Mar 2022 545th jotslo 🇬🇧 813 107 2ms 17 Jul 2022 546th janlelis 812 67 36ms 11 Jan 2022 546th stefangimmillaro 812 67 40ms 26 Dec 2024 548th Shanethegamer 🇺🇸 812 93 539ms 16 Jan 2024 548th Yewzir 🇧🇪 812 93 525ms 22 Jun 2024 550th error256 812 132 385ms 21 Nov 2025 551st chunes3 🇺🇸 811 100 70ms 15 Sep 2023 551st Natanaelel 🇸🇪 811 100 66ms 8 Dec 2023 553rd Mandrzejy 🇵🇱 811 114 1ms 13 Sep 2024 553rd AZTECCO 811 114 1ms 16 Sep 2025 555th m-tkach 🇺🇦 811 137 86ms 15 Jan 2022 555th sean-niemann 🇺🇸 811 137 91ms 3 Feb 2024 557th kg583 🇺🇸 811 154 38ms 17 Nov 2025 558th ZakkkkAttackkkk 🇵🇭 810 109 11ms 23 Feb 2022 558th cefqrn 810 109 11ms 24 Dec 2022 558th AlexanderFair 810 109 11ms 11 Jul 2023 First Prev 481–560 of 1,677 Next Last