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 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 Alphabetic Numbers 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 Rectangle Fill 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 Alphabetic Numbers 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 560th solisolu 773 119 1ms 25 Nov 2025 562nd primo-ppcg 🇹🇭 772 131 6ms 20 Jan 2023 563rd kmathis22 772 138 504ms 30 Oct 2025 564th andersk 🇺🇸 772 156 235ms 30 Oct 2022 564th emgordon154 772 156 249ms 14 Mar 2025 566th nwellnhof 🇩🇪 771 54 4ms 22 May 2022 567th clockworknazo 771 85 4ms 25 Mar 2023 568th call23re 771 112 2ms 12 Jan 2022 569th primo-ppcg 🇹🇭 771 118 373ms 9 Apr 2022 570th strout 771 145 148ms 15 Aug 2022 571st scpchicken 🇵🇼 769 55 135ms 13 Mar 2022 572nd MeWhenI 🇻🇦 769 130 41ms 30 Dec 2025 573rd maxpelic 🇺🇸 768 92 10ms 5 Jul 2022 573rd astdefu 768 92 10ms 10 Dec 2022 573rd two-bad 🇬🇧 768 92 11ms 25 Feb 2024 573rd dokutan 768 92 12ms 15 Jun 2025 577th Steffan153 🇫🇮 768 132 14ms 5 Jul 2024 578th Shanethegamer 🇺🇸 768 157 151ms 8 Oct 2022 579th Shanethegamer 🇺🇸 766 76 402ms 12 Oct 2022 580th sjrct 766 90 10ms 5 Aug 2024 580th webmiche 766 90 10ms 3 Nov 2025 582nd frankgraziano 766 130 30ms 21 days ago 583rd ovs-code 🇩🇪 765 34 42ms 14 May 2024 584th juliansiebert 🇩🇪 765 72 346ms 24 Jul 2022 585th stefangimmillaro 765 76 1,333ms 8 Jan 2023 585th MeWhenI 🇻🇦 765 76 1,213ms 10 May 2023 585th error256 765 76 1,384ms 14 Feb 2025 588th albanian-laundromat 763 76 963ms 7 Nov 2025 589th Yewzir 🇧🇪 763 115 195ms 26 Dec 2023 590th rak1507 🇬🇧 761 40 2ms 10 Jan 2022 590th Frowny 761 40 2ms 13 Jan 2022 590th razetime 761 40 2ms 22 Aug 2022 593rd DialFrost 🇸🇬 761 133 6ms 11 Dec 2024 594th jerrandolph 761 174 294ms 20 Oct 2023 595th MeWhenI 🇻🇦 760 43 4ms 1 Mar 2025 596th MeWhenI 🇻🇦 760 59 37ms 24 Aug 2022 596th janlelis 760 59 38ms 21 Sep 2024 598th emgordon154 760 81 403ms 1 Aug 2024 599th Andrey-Plotnikov 760 93 13ms 21 Jun 2025 599th Protothor 760 93 10ms 9 Jul 2025 601st retrohun 760 121 2ms 30 Dec 2022 601st abc7-12 760 121 1ms 26 Jun 2024 603rd kejcao 🇨🇦 760 147 155ms 3 Aug 2024 604th albanian-laundromat 760 171 43ms 10 days ago 605th primo-ppcg 🇹🇭 758 67 15ms 24 Jan 2022 606th P-Quentin 🇫🇷 758 91 11ms 5 Aug 2022 606th Rubiksmath 758 91 16ms 28 Jun 2024 606th wh3n3v3r 🇨🇿 758 91 10ms 11 Nov 2024 609th GrayJoKing 🇦🇺 758 126 458ms 1 Mar 2022 610th xsot 🇸🇬 757 55 3ms 6 Jul 2025 611th dokutan 757 81 130ms 15 Jun 2025 612th edsrzf 🇳🇿 757 93 2,233ms 1 Sep 2025 613th DialFrost 🇸🇬 757 114 2ms 1 Nov 2024 614th edsrzf 🇳🇿 757 132 43ms 31 Dec 2025 615th annaproxy 757 134 14ms 24 Dec 2022 616th MeWhenI 🇻🇦 757 146 67ms 13 Nov 2022 616th janbehrens 🇩🇪 757 146 67ms 23 Jun 2023 618th MeWhenI 🇻🇦 757 194 1,694ms 7 Nov 2025 619th Shanethegamer 🇺🇸 754 73 281ms 14 Jun 2024 620th c0d3-4-F00d 🇩🇪 754 122 2ms 21 Feb 2022 621st ovs-code 🇩🇪 753 87 4ms 8 Mar 2023 622nd MeWhenI 🇻🇦 753 128 8ms 21 Jul 2023 623rd tomh1012 752 94 9ms 3 days ago 624th Ripick 752 121 381ms 11 Jul 2024 625th DialFrost 🇸🇬 752 142 2ms 14 Sep 2024 626th albanian-laundromat 751 133 42ms 7 Sep 2025 627th edsrzf 🇳🇿 751 173 41ms 28 Jun 2025 628th Starwort 🇬🇧 750 92 10ms 17 Mar 2023 628th cingulataluke 750 92 10ms 29 Aug 2023 630th JOrE20 750 179 26ms 25 days ago 631st edsrzf 🇳🇿 749 97 62ms 7 Oct 2025 632nd Steffan153 🇫🇮 749 135 6ms 12 Mar 2023 633rd anter69 🇭🇺 748 60 38ms 12 Feb 2024 634th iczelia 🇩🇪 748 123 1ms 24 Sep 2025 635th elgan65536 🇺🇸 748 161 150ms 9 Nov 2023 636th Shanethegamer 🇺🇸 748 251 1,422ms 25 Jan 2025 637th edsrzf 🇳🇿 747 78 386ms 11 Oct 2025 638th nwellnhof 🇩🇪 747 88 31ms 12 Jul 2022 639th emplv 🇱🇻 747 101 111ms 6 Dec 2022 640th emgordon154 746 128 553ms 3 Jun 2025 First Prev 561–640 of 1,601 Next Last