The Calendar hole will go live in approximately 4 days. Why not try and solve it ahead of time?
Factorial Factorisation in all languages in bytes. 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 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 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 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 Multitap Input 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 Arturo Befunge BQN CJam CoffeeScript Egel 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 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 Arturo Befunge BQN CJam CoffeeScript Egel 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 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 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 Multitap Input 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 Bytes Time Submitted 81st GrayJoKing 🇦🇺 901 97 149ms 15 Aug 2024 82nd GrayJoKing 🇦🇺 901 114 50ms 16 Apr 2024 83rd xnor-gate 901 115 135ms 16 Jan 2025 84th JayXon 🇺🇸 901 123 95ms 19 Apr 2024 84th JayXon 🇺🇸 901 123 475ms 23 Apr 2024 86th kg583 🇺🇸 900 122 46ms 21 Dec 2024 87th IanUtley 899 118 29ms 15 Apr 2024 88th JayXon 🇺🇸 899 129 149ms 19 Apr 2024 89th lukegustafson 🇺🇸 898 89 9ms 27 Jun 2025 90th JayXon 🇺🇸 898 111 1,289ms 30 Apr 2024 91st edsrzf 🇳🇿 898 127 12ms 9 mins ago 91st kg583 🇺🇸 898 127 12ms 2 mins ago 93rd JayXon 🇺🇸 897 81 367ms 29 Apr 2024 94th JayXon 🇺🇸 897 119 20ms 28 Apr 2024 95th Steffan153 🇫🇮 897 142 9ms 16 Apr 2024 95th kg583 🇺🇸 897 142 9ms 25 Nov 2025 97th SirBogman 🇺🇸 896 91 246ms 13 Aug 2025 98th GrayJoKing 🇦🇺 896 132 14ms 23 Jul 2025 99th xnor-gate 895 93 10ms 18 Jan 2025 100th pardouin 🇫🇷 895 101 3,431ms 13 May 2025 101st orthoplex 🇨🇽 894 55 909ms 14 Apr 2024 102nd ovs-code 🇩🇪 894 116 159ms 21 days ago 103rd kg583 🇺🇸 894 121 45ms 14 Feb 2025 104th albanian-laundromat 894 126 76ms 5 days ago 105th pardouin 🇫🇷 893 87 968ms 15 Aug 2025 106th JayXon 🇺🇸 892 95 4ms 29 Apr 2024 106th saito-ta 🇯🇵 892 95 400ms 30 Apr 2024 108th UnderKoen 🇳🇱 892 166 234ms 20 Jan 2025 109th tailorspy 891 120 62ms 23 May 2024 110th Shanethegamer 🇺🇸 891 128 11ms 16 Apr 2024 111th albanian-laundromat 890 133 7ms 13 days ago 112th DialFrost 🇸🇬 889 82 81ms 5 Apr 2025 113th DialFrost 🇸🇬 886 82 689ms 29 May 2024 114th GrayJoKing 🇦🇺 886 146 19ms 17 Apr 2024 115th nwellnhof 🇩🇪 885 73 121ms 23 Apr 2024 116th pardouin 🇫🇷 885 90 394ms 23 Jun 2024 117th ovs-code 🇩🇪 885 94 74ms 13 Apr 2024 117th Steffan153 🇫🇮 885 94 77ms 19 Aug 2024 119th DialFrost 🇸🇬 885 123 563ms 24 Sep 2025 120th albanian-laundromat 885 214 47ms 2 days ago 121st Frowny 884 43 36ms 15 Apr 2024 122nd lynn 883 45 56ms 7 Jul 2024 123rd sean-niemann 🇺🇸 883 121 59ms 2 May 2024 124th Steffan153 🇫🇮 882 88 901ms 17 Apr 2024 125th GrayJoKing 🇦🇺 880 115 36ms 18 Apr 2024 126th sean-niemann 🇺🇸 880 126 407ms 30 Apr 2024 127th lyphyser 879 77 51ms 13 Apr 2024 128th DialFrost 🇸🇬 879 91 10ms 18 Aug 2025 129th sean-niemann 🇺🇸 878 124 450ms 24 Sep 2025 130th m-tkach 🇺🇦 878 182 31ms 1 May 2024 131st canissimia 🇦🇶 878 515 3ms 2 May 2024 132nd GrayJoKing 🇦🇺 877 78 40ms 16 Apr 2024 132nd pardouin 🇫🇷 877 78 291ms 9 Sep 2025 134th bitsandbeyond 🇳🇱 876 93 434ms 5 Nov 2025 135th DialFrost 🇸🇬 876 95 59ms 2 Jun 2024 136th zygoloid 876 122 61ms 10 Aug 2024 137th albanian-laundromat 875 122 6ms 5 Sep 2025 138th DialFrost 🇸🇬 873 97 1,063ms 8 Sep 2025 138th CaedenHarper 🇨🇦 873 97 816ms 27 Sep 2025 140th Shanethegamer 🇺🇸 873 129 138ms 4 Dec 2024 141st DialFrost 🇸🇬 873 194 462ms 28 Mar 2025 142nd Shanethegamer 🇺🇸 872 89 927ms 17 Apr 2024 142nd ovs-code 🇩🇪 872 89 1,014ms 18 Apr 2024 144th nwellnhof 🇩🇪 872 526 3ms 25 Apr 2024 145th DialFrost 🇸🇬 871 167 119ms 26 days ago 146th retrohun 870 115 366ms 26 May 2024 147th MeWhenI 🇻🇦 870 143 16ms 25 Apr 2024 148th stefangimmillaro 869 92 10ms 14 Apr 2024 149th roupiq 🇵🇱 869 123 54ms 2 Oct 2025 149th KasperKivimaeki 🇫🇮 869 123 397ms 18 Nov 2025 151st JayXon 🇺🇸 869 218 1,751ms 14 Sep 2025 152nd primo-ppcg 🇹🇭 867 84 91ms 23 Jan 2025 153rd sean-niemann 🇺🇸 867 96 69ms 10 Mar 2025 153rd GrayJoKing 🇦🇺 867 96 11ms 14 Jul 2025 155th stefangimmillaro 866 128 94ms 22 Oct 2024 156th stackofbears 864 44 36ms 20 Apr 2024 157th SirBogman 🇺🇸 864 46 2ms 16 Apr 2024 158th albanian-laundromat 864 98 778ms 22 Sep 2025 159th JOrE20 🇺🇸 864 219 27ms 2 days ago 160th ovs-code 🇩🇪 861 75 151ms 18 Apr 2024 First Prev 81–160 of 1,433 Next Last