ISBN in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 601st HumanoidCPU 752 83 413ms 2 Mar 2025 602nd Starwort 🇬🇧 750 92 11ms 17 Mar 2023 602nd cingulataluke 750 92 11ms 29 Aug 2023 604th Ripick 750 121 354ms 11 Jul 2024 605th MeWhenI 🇻🇦 750 146 57ms 13 Nov 2022 605th janbehrens 🇩🇪 750 146 55ms 23 Jun 2023 607th edsrzf 🇳🇿 749 97 69ms 7 Oct 2025 608th jupj 🇫🇮 749 125 2ms 31 Aug 2022 609th albanian-laundromat 748 133 43ms 7 Sep 2025 610th edsrzf 🇳🇿 748 173 43ms 28 Jun 2025 611th Shanethegamer 🇺🇸 748 251 2,566ms 25 Jan 2025 612th anter69 🇭🇺 747 60 38ms 12 Feb 2024 613th edsrzf 🇳🇿 747 78 405ms 11 Oct 2025 614th nwellnhof 🇩🇪 747 88 32ms 12 Jul 2022 615th emgordon154 746 128 577ms 3 Jun 2025 616th elgan65536 746 161 182ms 9 Nov 2023 617th dylanarmstrong 744 95 11ms 12 Jan 2024 617th junkondo-jp 744 95 9ms 2 Jun 2024 619th KrausRaus 🇺🇸 744 117 2ms 15 Oct 2023 620th bac0id 744 126 2ms 3 Jul 2024 621st tobeannouncd 744 150 160ms 20 Dec 2024 622nd chlorobenzene12 743 116 2ms 26 Dec 2022 623rd edsrzf 🇳🇿 743 134 44ms 28 Jun 2025 624th stackofbears 742 41 3ms 20 Feb 2022 624th akamayu-ouo 🇹🇼 742 41 2ms 8 Jul 2024 624th AlephSquirrel 742 41 3ms 6 days ago 627th Frowny 742 53 40ms 11 Jan 2022 628th GrayJoKing 🇦🇺 741 83 138ms 6 Aug 2024 629th QuincyNash 🇺🇸 741 93 16ms 21 Jan 2022 630th MeWhenI 🇻🇦 741 129 424ms 4 Aug 2023 631st bac0id 740 148 62ms 3 Jul 2024 632nd primo-ppcg 🇹🇭 739 144 311ms 4 Apr 2022 632nd Lydxn 🇨🇦 739 144 305ms 5 Apr 2022 632nd rotary-o 🇯🇵 739 144 318ms 5 May 2023 632nd Steffan153 🇫🇮 739 144 305ms 24 Feb 2024 632nd Jacob385 739 144 348ms 17 days ago 637th HumanoidCPU 739 179 254ms 3 Mar 2025 638th MeWhenI 🇻🇦 738 123 326ms 30 Jan 2023 639th ovs-code 🇩🇪 736 70 3ms 8 Nov 2022 640th 4hg 🇺🇸 736 79 950ms 8 Dec 2022 640th anter69 🇭🇺 736 79 1,014ms 19 Feb 2023 640th emgordon154 736 79 1,037ms 25 Nov 2024 640th Shanethegamer 🇺🇸 736 79 968ms 9 Apr 2025 644th BambooleanLogic 🇸🇪 736 96 9ms 20 Aug 2022 644th vroup 🇩🇰 736 96 10ms 2 Oct 2022 644th Ultra814 736 96 8ms 17 Aug 2025 647th JunkIce 735 85 454ms 3 Dec 2024 648th BlankSpruce 735 149 56ms 16 Jan 2022 649th weliveinhell 🇭🇹 735 180 256ms 4 Oct 2023 649th emgordon154 735 180 259ms 20 Feb 2025 651st emplv 🇱🇻 735 182 28ms 31 Oct 2022 652nd SirBogman 🇺🇸 734 61 33ms 21 May 2022 652nd Shanethegamer 🇺🇸 734 61 34ms 27 May 2022 652nd canissimia 🇦🇶 734 61 58ms 18 Jul 2022 655th xnor-gate 734 94 17ms 30 Jul 2024 656th edsrzf 🇳🇿 733 164 285ms 29 Jul 2025 657th rucin93 🇵🇱 732 84 135ms 31 Oct 2024 658th billings7 🇬🇧 732 105 360ms 12 Nov 2023 658th MiffOttah 732 105 377ms 28 Nov 2024 660th jared-hughes 732 128 2ms 17 Mar 2022 660th solisolu 732 128 2ms 3 days ago 662nd JRaspass 🇬🇧 731 181 266ms 23 Sep 2022 663rd Steffan153 🇫🇮 729 57 4ms 6 Jan 2023 663rd Natanaelel 🇸🇪 729 57 5ms 13 May 2023 665th yzhs 🇩🇪 729 153 176ms 25 Jun 2023 666th MeWhenI 🇻🇦 729 160 40ms 4 Sep 2024 667th iczelia 🇩🇪 728 97 9ms 26 Sep 2025 668th SirBogman 🇺🇸 728 320 14ms 21 May 2022 669th chunes3 🇺🇸 727 100 70ms 15 Sep 2023 669th Natanaelel 🇸🇪 727 100 67ms 8 Dec 2023 671st GeneralTwi 726 95 11ms 2 May 2022 672nd Yewzir 🇧🇪 726 137 39ms 28 Nov 2023 673rd ericlangedijk 🇸🇮 725 106 394ms 19 Mar 2022 674th retrohun 725 151 57ms 30 Dec 2022 674th annaproxy 725 151 58ms 5 Jan 2023 First Prev 601–675 of 1,520 Next Last