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 398th EnTerr 849 104 10ms 8 Sep 2024 398th KasperKivimaeki 🇫🇮 849 104 10ms 11 Jul 2025 398th luuumine 🇫🇷 849 104 10ms 31 Oct 2025 404th edsrzf 🇳🇿 849 147 40ms 6 days ago 405th xsot 🇸🇬 848 55 4ms 6 Jul 2025 406th ovs-code 🇩🇪 848 89 456ms 5 Jul 2024 407th prplz 🇦🇺 847 109 1ms 18 Jan 2022 407th xsot 🇸🇬 847 109 1ms 1 Feb 2024 409th didion0 🇺🇸 846 84 10ms 25 Jan 2022 409th 13x1 🇩🇪 846 84 11ms 15 May 2023 409th biocommando 🇫🇮 846 84 10ms 11 Aug 2023 409th deancureton 846 84 10ms 29 Dec 2024 409th CaedenHarper 🇨🇦 846 84 11ms 22 Aug 2025 409th solisolu 846 84 10ms 23 Nov 2025 415th MeWhenI 🇻🇦 846 90 109ms 20 Oct 2022 416th GrayJoKing 🇦🇺 846 115 9ms 28 Jul 2023 417th ovs-code 🇩🇪 845 114 471ms 26 Nov 2024 418th kaascevich 845 123 123ms 21 Jul 2025 419th lynn 844 124 1,396ms 16 Jan 2022 420th clockworknazo 843 62 1ms 17 Nov 2022 421st DialFrost 🇸🇬 843 66 308ms 10 Oct 2024 422nd HumanoidCPU 843 127 491ms 8 Nov 2025 423rd MeWhenI 🇻🇦 843 158 281ms 7 Jan 2025 424th Sakisan 🇧🇪 842 64 1,061ms 30 Jun 2022 425th acotis 842 144 173ms 10 Feb 2026 426th edsrzf 🇳🇿 842 148 34ms 10 days ago 427th ovs-code 🇩🇪 842 224 1,460ms 18 Apr 2025 428th Shanethegamer 🇺🇸 841 92 440ms 26 Mar 2024 429th TFeld00 🇩🇰 841 105 10ms 19 May 2022 429th stefangimmillaro 841 105 10ms 26 Dec 2022 429th betaveros 841 105 9ms 1 Jan 2023 429th 5cw 🇺🇸 841 105 10ms 3 May 2023 429th minhtrancccp 841 105 10ms 26 Sep 2023 429th lifthrasiir 🇰🇷 841 105 10ms 20 Nov 2024 429th qpwoeirut 841 105 10ms 28 Sep 2025 436th drabart 🇵🇱 841 132 55ms 16 Dec 2023 437th Irratix 🇳🇱 840 110 2ms 14 May 2022 437th speles 🇺🇦 840 110 2ms 29 Oct 2023 439th jacobly0 🇺🇸 840 176 1,723ms 22 Apr 2024 440th m-tkach 🇺🇦 839 90 455ms 21 Jan 2024 440th sean-niemann 🇺🇸 839 90 467ms 28 Jan 2025 442nd SirBogman 🇺🇸 838 37 2ms 27 May 2024 442nd emgordon154 838 37 42ms 11 Sep 2024 442nd Yewzir 🇧🇪 838 37 2ms 19 Dec 2024 445th 4hg 🇺🇸 838 52 32ms 26 Jul 2023 446th Shanethegamer 🇺🇸 838 159 287ms 20 Apr 2022 447th MeWhenI 🇻🇦 836 65 35ms 7 Dec 2023 448th MeWhenI 🇻🇦 836 69 5ms 13 Aug 2024 449th Natanaelel 🇸🇪 836 85 9ms 7 Feb 2023 449th HumanoidCPU 836 85 10ms 2 Mar 2025 451st edsrzf 🇳🇿 836 97 62ms 7 Oct 2025 452nd MeWhenI 🇻🇦 836 106 140ms 5 days ago 453rd lynn 836 148 30ms 18 Jul 2023 454th jacobly0 🇺🇸 835 104 2ms 11 Sep 2023 455th Alex-x90 🇺🇸 835 133 61ms 8 Aug 2023 455th Yewzir 🇧🇪 835 133 57ms 29 Nov 2023 457th clockworknazo 834 129 2ms 18 Sep 2022 458th Bulmenisaurus 833 106 10ms 2 Feb 2025 459th prplz 🇦🇺 832 93 449ms 18 Jan 2022 459th hemphen 832 93 434ms 28 Aug 2022 459th feberhard 832 93 475ms 6 Apr 2023 459th sean-niemann 🇺🇸 832 93 424ms 19 Apr 2025 463rd ZakkkkAttackkkk 🇵🇭 832 111 1ms 9 Nov 2023 463rd Szum123321 🇵🇱 832 111 2ms 9 Dec 2023 463rd DialFrost 🇸🇬 832 111 1ms 20 Dec 2024 466th emplv 🇱🇻 832 160 306ms 6 Jan 2023 466th KasperKivimaeki 🇫🇮 832 160 293ms 20 Oct 2025 468th dcgjb 831 67 292ms 14 Feb 2024 469th emplv 🇱🇻 831 101 5ms 3 Jul 2023 469th stefangimmillaro 831 101 4ms 12 Oct 2023 469th edsrzf 🇳🇿 831 101 5ms 7 Oct 2025 472nd jared-hughes 831 200 8ms 18 Dec 2024 473rd Shanethegamer 🇺🇸 830 63 1ms 13 May 2023 474th pardouin 🇫🇷 830 71 1,321ms 2 Sep 2025 475th neel11235813 830 91 419ms 13 Mar 2024 475th kg583 🇺🇸 830 91 466ms 21 Mar 2024 475th bizy-coder 830 91 475ms 1 Apr 2024 475th MeWhenI 🇻🇦 830 91 436ms 24 May 2024 475th duckyluuk 🇳🇱 830 91 372ms 21 Jun 2024 475th AlephSquirrel 830 91 469ms 3 Jul 2024 First Prev 401–480 of 1,624 Next Last