ISBN in all languages in chars. 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 Chars Time Submitted 400th hemphen 827 93 411ms 28 Aug 2022 400th feberhard 827 93 461ms 6 Apr 2023 400th sean-niemann 🇺🇸 827 93 418ms 19 Apr 2025 404th emplv 🇱🇻 827 160 296ms 6 Jan 2023 404th KasperKivimaeki 🇫🇮 827 160 335ms 20 Oct 2025 406th lynn 826 148 29ms 18 Jul 2023 407th jared-hughes 826 200 10ms 18 Dec 2024 408th Alex-x90 🇺🇸 824 133 58ms 8 Aug 2023 408th Yewzir 🇧🇪 824 133 59ms 29 Nov 2023 410th emplv 🇱🇻 823 101 6ms 3 Jul 2023 410th stefangimmillaro 823 101 4ms 12 Oct 2023 410th edsrzf 🇳🇿 823 101 5ms 7 Oct 2025 413th CLOStrophobic 🇮🇹 823 123 8ms 21 Jan 2025 414th SirBogman 🇺🇸 822 37 2ms 27 May 2024 414th Yewzir 🇧🇪 822 37 2ms 19 Dec 2024 416th dcgjb 822 67 265ms 14 Feb 2024 417th Yewzir 🇧🇪 822 76 424ms 22 Jun 2024 417th Shanethegamer 🇺🇸 822 76 406ms 10 Dec 2024 419th albanian-laundromat 822 133 3ms 22 Sep 2025 420th jeff-at-tamer-dot-codes 🇺🇸 821 84 10ms 19 May 2023 420th Artemis21 🇬🇧 821 84 12ms 10 Jan 2025 420th Flekay 🇩🇪 821 84 11ms 12 mins ago 423rd Shanethegamer 🇺🇸 821 112 2ms 20 Apr 2022 424th Shanethegamer 🇺🇸 820 107 111ms 24 May 2025 425th m-tkach 🇺🇦 820 130 607ms 25 Sep 2025 426th Bubbler-4 819 48 34ms 15 Nov 2022 426th stackofbears 819 48 32ms 27 Dec 2023 428th pardouin 🇫🇷 819 71 1,238ms 2 Sep 2025 429th DialFrost 🇸🇬 819 286 140ms 22 Apr 2025 429th frankgraziano 819 286 651ms 15 days ago 431st Shanethegamer 🇺🇸 818 63 2ms 13 May 2023 432nd error256 818 74 742ms 2 days ago 433rd annaproxy 818 94 446ms 19 Mar 2022 434th Mandrzejy 🇵🇱 818 134 54ms 13 Sep 2024 435th primo-ppcg 🇹🇭 818 164 25ms 25 Jun 2022 436th o0lit3 🇺🇸 816 51 3ms 11 Jan 2022 437th JayXon 🇺🇸 816 55 35ms 25 Feb 2022 438th Shanethegamer 🇺🇸 816 124 6ms 27 Aug 2024 439th Steffan153 🇫🇮 815 82 89ms 11 Jul 2024 440th GrayJoKing 🇦🇺 815 99 4ms 20 Sep 2023 441st MeWhenI 🇻🇦 815 102 6ms 26 Nov 2023 442nd Yewzir 🇧🇪 814 113 2ms 29 Nov 2023 442nd drabart 🇵🇱 814 113 2ms 18 Dec 2023 444th saito-ta 🇯🇵 812 32 41ms 19 Aug 2022 444th canissimia 🇦🇶 812 32 38ms 19 Aug 2022 446th KatieLG 🇬🇧 812 77 468ms 28 Oct 2024 447th itsh01 812 87 9ms 13 Mar 2022 447th AlephSquirrel 812 87 11ms 15 Feb 2023 447th danielphilpottwork 812 87 10ms 20 Dec 2023 447th Attero 🇸🇪 812 87 9ms 22 Dec 2023 451st Irratix 🇳🇱 812 135 398ms 14 May 2022 452nd sean-niemann 🇺🇸 812 163 289ms 30 Aug 2023 452nd Yewzir 🇧🇪 812 163 295ms 7 Feb 2024 452nd CaedenHarper 🇨🇦 812 163 306ms 2 Nov 2025 455th emgordon154 812 181 1,625ms 22 Dec 2025 456th m42km 811 85 10ms 24 Oct 2023 456th emgordon154 811 85 10ms 1 Aug 2024 456th JunkIce 811 85 14ms 25 Nov 2024 456th robin-scragg 811 85 11ms 25 Jul 2025 460th edsrzf 🇳🇿 811 93 2,233ms 1 Sep 2025 461st MeWhenI 🇻🇦 811 105 9ms 9 May 2024 462nd btnlq 811 125 13ms 12 Jan 2022 463rd DialFrost 🇸🇬 810 118 461ms 27 Nov 2024 464th plcc0 809 125 7ms 23 Mar 2025 465th ovs-code 🇩🇪 807 90 65ms 12 Sep 2024 465th primo-ppcg 🇹🇭 807 90 62ms 5 Apr 2025 467th janbehrens 🇩🇪 807 103 4ms 2 Jul 2023 468th jotslo 🇬🇧 807 107 2ms 17 Jul 2022 469th Mandrzejy 🇵🇱 807 114 2ms 13 Sep 2024 469th AZTECCO 807 114 2ms 16 Sep 2025 471st error256 807 132 385ms 21 Nov 2025 472nd Shanethegamer 🇺🇸 806 136 63ms 20 Apr 2022 473rd GrayJoKing 🇦🇺 805 113 421ms 24 Jul 2025 474th GrayJoKing 🇦🇺 804 152 29ms 18 Jul 2023 474th m-tkach 🇺🇦 804 152 30ms 5 days ago 476th kg583 🇺🇸 803 126 6ms 26 Oct 2024 477th lifthrasiir 🇰🇷 802 206 10ms 18 Dec 2024 478th emgordon154 802 234 1,418ms 18 Apr 2025 478th error256 802 234 3,129ms 6 days ago 480th 5cw 🇺🇸 801 38 2ms 27 May 2024 First Prev 401–480 of 1,588 Next Last