ISBN in all languages in bytes. 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time 375th sean-niemann 🇺🇸 848 90 28 Jan 2025 377th 386asm 🇺🇸 848 118 5 May 2023 378th edsrzf 🇳🇿 848 151 7 Apr 2025 379th ZakkkkAttackkkk 🇵🇭 847 111 9 Nov 2023 379th Szum123321 🇵🇱 847 111 9 Dec 2023 379th DialFrost 🇸🇬 847 111 20 Dec 2024 382nd GrayJoKing 🇦🇺 847 130 12 Sep 2022 383rd xsot 🇸🇬 846 55 6 Jul 2025 384th didion0 🇺🇸 845 84 25 Jan 2022 384th 13x1 🇩🇪 845 84 15 May 2023 384th biocommando 🇫🇮 845 84 11 Aug 2023 384th deancureton 845 84 29 Dec 2024 384th CaedenHarper 🇨🇦 845 84 22 Aug 2025 389th ovs-code 🇩🇪 845 114 26 Nov 2024 390th Shanethegamer 🇺🇸 844 90 28 Oct 2024 391st lynn 844 124 16 Jan 2022 392nd clockworknazo 843 62 17 Nov 2022 393rd DialFrost 🇸🇬 843 66 10 Oct 2024 394th Sakisan 🇧🇪 842 64 30 Jun 2022 395th MeWhenI 🇻🇦 842 158 7 Jan 2025 396th TFeld00 🇩🇰 841 105 19 May 2022 396th stefangimmillaro 841 105 26 Dec 2022 396th betaveros 841 105 1 Jan 2023 396th 5cw 🇺🇸 841 105 3 May 2023 396th minhtrancccp 841 105 26 Sep 2023 396th lifthrasiir 🇰🇷 841 105 20 Nov 2024 396th Emutis 🇱🇹 841 105 4 Feb 2025 396th qpwoeirut 841 105 8 days ago 404th kaascevich 841 123 21 Jul 2025 405th Shanethegamer 🇺🇸 840 89 8 Jan 2025 405th emplv 🇱🇻 840 89 28 Mar 2025 405th ovs-code 🇩🇪 840 89 17 Apr 2025 408th Shanethegamer 🇺🇸 840 92 26 Mar 2024 409th Shanethegamer 🇺🇸 840 112 20 Apr 2022 410th CLOStrophobic 🇮🇹 840 123 21 Jan 2025 411th SirBogman 🇺🇸 838 37 27 May 2024 411th emgordon154 838 37 11 Sep 2024 411th Yewzir 🇧🇪 838 37 19 Dec 2024 414th neel11235813 838 91 13 Mar 2024 414th kg583 🇺🇸 838 91 21 Mar 2024 414th bizy-coder 838 91 1 Apr 2024 414th MeWhenI 🇻🇦 838 91 24 May 2024 414th duckyluuk 🇳🇱 838 91 21 Jun 2024 414th AlephSquirrel 838 91 3 Jul 2024 420th 4hg 🇺🇸 837 52 26 Jul 2023 421st GrayJoKing 🇦🇺 837 152 18 Jul 2023 422nd edsrzf 🇳🇿 836 97 8 hours ago 423rd Shanethegamer 🇺🇸 836 159 20 Apr 2022 424th MeWhenI 🇻🇦 835 65 7 Dec 2023 425th Natanaelel 🇸🇪 835 85 7 Feb 2023 425th HumanoidCPU 835 85 2 Mar 2025 427th DialFrost 🇸🇬 835 91 25 Oct 2024 428th JayXon 🇺🇸 835 98 9 Apr 2023 429th jacobly0 🇺🇸 835 176 22 Apr 2024 430th ovs-code 🇩🇪 835 224 18 Apr 2025 431st jacobly0 🇺🇸 834 104 11 Sep 2023 432nd Bulmenisaurus 833 106 2 Feb 2025 433rd Shanethegamer 🇺🇸 833 124 27 Aug 2024 434th drabart 🇵🇱 833 132 16 Dec 2023 435th acotis 833 146 30 May 2025 436th Yewzir 🇧🇪 832 113 29 Nov 2023 436th drabart 🇵🇱 832 113 18 Dec 2023 438th dcgjb 831 67 14 Feb 2024 439th DialFrost 🇸🇬 831 90 3 Nov 2024 440th prplz 🇦🇺 831 93 18 Jan 2022 440th hemphen 831 93 28 Aug 2022 440th feberhard 831 93 6 Apr 2023 440th sean-niemann 🇺🇸 831 93 19 Apr 2025 444th emplv 🇱🇻 831 160 6 Jan 2023 445th Shanethegamer 🇺🇸 830 63 13 May 2023 446th pardouin 🇫🇷 830 71 2 Sep 2025 447th emplv 🇱🇻 830 101 3 Jul 2023 447th stefangimmillaro 830 101 12 Oct 2023 447th edsrzf 🇳🇿 830 101 4 hours ago 450th inventshah 829 92 21 Jan 2024 First Prev 376–450 of 1,499 Next Last