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 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 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 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 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 901st jwhear 🇺🇸 639 230 1,742ms 30 Sep 2024 901st msbranicky 639 230 1,651ms 17 Sep 2025 903rd prplz 🇦🇺 638 108 10ms 11 Jan 2022 903rd galloj 🇨🇿 638 108 9ms 21 Sep 2022 903rd TaserTheFox 🇺🇸 638 108 10ms 3 Apr 2023 903rd cros107 🇦🇺 638 108 9ms 10 Aug 2025 907th fuzzylojik-golf 🇺🇸 637 98 460ms 6 Jul 2025 908th bwat2 637 167 324ms 13 Jan 2022 908th rifatx 637 167 320ms 23 Jul 2024 910th m-tkach 🇺🇦 635 121 374ms 10 Jan 2022 910th arctouch-cristiannevianna 635 121 355ms 1 Mar 2024 910th acer-xq 635 121 392ms 5 Aug 2024 913th edsrzf 🇳🇿 634 41 34ms 17 days ago 914th dokutan 634 48 2ms 15 Nov 2024 915th Natanaelel 🇸🇪 634 62 48ms 21 Jun 2022 916th cefqrn 633 109 9ms 24 Dec 2022 916th AlexanderFair 633 109 10ms 11 Jul 2023 916th firegene 🇮🇪 633 109 9ms 18 Jan 2024 916th andrewjc2000 633 109 10ms 9 Mar 2025 920th MaxElf999 633 148 2ms 19 Dec 2022 921st astdefu 633 173 420ms 9 Dec 2022 922nd MeWhenI 🇻🇦 632 200 33ms 7 Jun 2023 923rd DialFrost 🇸🇬 631 71 35ms 26 Dec 2024 924th dokutan 631 205 52ms 31 Oct 2024 925th Kokusui 🇯🇵 630 132 3ms 22 Jul 2024 926th 0xjac 🇨🇭 630 210 271ms 9 Jun 2025 927th Yewzir 🇧🇪 629 135 9ms 16 Dec 2023 927th Maximizer02 629 135 8ms 24 Sep 2024 929th gastropner 629 149 2ms 8 Jul 2025 930th sultan 627 110 10ms 24 Feb 2024 930th fgrosshans 🇫🇷 627 110 10ms 16 Jul 2024 930th edsrzf 🇳🇿 627 110 11ms 30 Jul 2025 930th InigoK 🇺🇸 627 110 12ms 22 Sep 2025 934th NicolasBn 🇫🇷 626 88 242ms 11 Jan 2022 935th MeWhenI 🇻🇦 626 93 337ms 14 Feb 2023 936th crizin 🇰🇷 626 170 313ms 10 Sep 2023 937th recursive-x 626 175 378ms 24 Jan 2023 938th edsrzf 🇳🇿 625 107 90ms 28 Jun 2025 939th SkimnerPhi 625 113 9ms 11 Mar 2022 939th msbranicky 625 113 9ms 8 Sep 2023 941st rifatx 625 123 349ms 14 Jul 2024 942nd second-pumpkin 625 150 2ms 15 Mar 2023 942nd msbranicky 625 150 2ms 20 Aug 2023 944th akamayu-ouo 🇹🇼 623 176 291ms 8 Jul 2024 945th billings7 🇬🇧 622 208 42ms 19 May 2024 946th neihousaigaai 621 111 9ms 11 Jan 2022 946th knutae 🇳🇴 621 111 10ms 18 Jan 2022 946th rschwa6308 🇺🇸 621 111 9ms 22 Mar 2023 946th zbreit 🇺🇸 621 111 11ms 22 Mar 2023 946th BREMAUCY 🇫🇷 621 111 9ms 15 Apr 2025 946th now4est 🇯🇵 621 111 10ms 25 Sep 2025 946th solisolu 621 111 10ms 12 days ago 953rd msbranicky 621 176 2ms 10 Aug 2023 954th MeWhenI 🇻🇦 620 67 3ms 15 Apr 2023 955th m42km 618 101 425ms 4 Feb 2024 956th guilhem-roy 🇫🇷 616 112 9ms 5 Jun 2022 956th ahmetdemirag 🇨🇾 616 112 11ms 30 Jun 2024 956th CommandLeo 🇮🇹 616 112 9ms 17 days ago 959th albanian-laundromat 615 379 12ms 18 Sep 2025 960th HumanoidCPU 614 73 37ms 2 Mar 2025 961st Andriamanitra 🇫🇮 612 153 2ms 14 Jul 2023 962nd Yewzir 🇧🇪 612 168 9ms 6 Mar 2024 963rd MaliPatuljak 612 174 314ms 3 Apr 2023 964th emgordon154 611 139 13ms 20 Feb 2025 965th dokutan 611 191 44ms 27 Aug 2024 966th Re-Adventures 🇮🇳 611 197 227ms 7 Jun 2023 967th commandblockguy 🇺🇸 610 113 10ms 3 Nov 2022 967th davitf 610 113 10ms 30 Apr 2024 967th kbeat 🇰🇿 610 113 11ms 18 May 2025 970th BREMAUCY 🇫🇷 610 163 42ms 15 Apr 2025 971st Yewzir 🇧🇪 610 212 44ms 6 days ago 972nd jbjd 608 154 2ms 12 Sep 2024 973rd msbranicky 608 175 304ms 8 Sep 2023 973rd Apataras 608 175 311ms 25 Aug 2025 975th Betuaredead 607 164 40ms 9 Jan 2023 First Prev 901–975 of 1,525 Next Last