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 801st dokutan 152 750 4ms 6 Oct 2024 802nd Shanethegamer 🇺🇸 149 866 3ms 13 Apr 2024 802nd MeWhenI 🇻🇦 149 866 2ms 13 Apr 2024 802nd HumanoidCPU 149 866 2ms 13 Apr 2024 802nd Yewzir 🇧🇪 149 866 2ms 13 Apr 2024 802nd bac0id 149 866 2ms 26 Jun 2024 802nd CaedenHarper 🇨🇦 149 866 2ms 22 Jan 2025 808th KatieLG-Transpiler 🇬🇧 149 868 2ms 16 Aug 2024 808th Mabeloid 🇳🇴 149 868 2ms 17 Sep 2024 810th KatieLG 🇬🇧 148 881 256ms 26 days ago 811th MeWhenI 🇻🇦 146 870 5ms 13 Apr 2024 811th HumanoidCPU 146 870 6ms 13 Apr 2024 811th Yewzir 🇧🇪 146 870 6ms 13 Apr 2024 811th KatieLG 🇬🇧 146 870 7ms 13 Apr 2024 811th Maximizer02 146 870 5ms 13 Apr 2024 811th dokutan 146 870 5ms 13 Apr 2024 811th Kaffeleif 146 870 5ms 15 Apr 2024 811th bac0id 146 870 6ms 25 Jun 2024 811th KatieLG-Transpiler 🇬🇧 146 870 5ms 16 Aug 2024 811th Mabeloid 🇳🇴 146 870 5ms 17 Sep 2024 811th CaedenHarper 🇨🇦 146 870 6ms 20 Jan 2025 822nd Yewzir 🇧🇪 143 909 268ms 13 Apr 2024 822nd HumanoidCPU 143 909 262ms 26 Aug 2024 824th bac0id 143 912 258ms 25 Jun 2024 825th KatieLG 🇬🇧 142 752 4ms 22 Aug 2024 826th KatieLG 🇬🇧 142 815 284ms 26 days ago 827th Mabeloid 🇳🇴 142 914 278ms 17 Sep 2024 828th KatieLG-Transpiler 🇬🇧 142 916 265ms 16 Aug 2024 829th Languag3 141 920 263ms 21 Oct 2024 830th Stockoh 🇫🇷 141 3,214 2ms 22 Apr 2024 831st kkoenig 140 929 265ms 13 Sep 2024 832nd KatieLG 🇬🇧 138 818 198ms 26 days ago 833rd MeWhenI 🇻🇦 137 866 3ms 13 Apr 2024 833rd Yewzir 🇧🇪 137 866 3ms 13 Apr 2024 833rd HumanoidCPU 137 866 3ms 13 Apr 2024 833rd BREMAUCY 🇫🇷 137 866 3ms 16 Apr 2024 833rd bac0id 137 866 3ms 25 Jun 2024 833rd Shanethegamer 🇺🇸 137 866 3ms 6 Dec 2024 833rd CaedenHarper 🇨🇦 137 866 3ms 20 Jan 2025 833rd dokutan 137 866 3ms 23 Feb 2025 841st KatieLG 🇬🇧 136 830 65ms 26 days ago 842nd zakariamouhid 136 868 3ms 13 Apr 2024 843rd KatieLG 🇬🇧 136 871 3ms 13 Apr 2024 843rd KatieLG-Transpiler 🇬🇧 136 871 3ms 16 Aug 2024 843rd Mabeloid 🇳🇴 136 871 3ms 17 Sep 2024 846th dokutan 135 816 8ms 10 Sep 2025 847th HumanoidCPU 134 867 120ms 13 Apr 2024 847th Yewzir 🇧🇪 134 867 119ms 13 Apr 2024 847th bac0id 134 867 120ms 26 Jun 2024 847th Mabeloid 🇳🇴 134 867 137ms 17 Sep 2024 847th CaedenHarper 🇨🇦 134 867 114ms 22 Jan 2025 852nd dokutan 132 757 2ms 2 Aug 2024 853rd dokutan 132 821 42ms 9 Oct 2024 854th dokutan 131 847 481ms 7 Nov 2025 855th CaedenHarper 🇨🇦 131 869 3ms 22 Jan 2025 856th MeWhenI 🇻🇦 131 870 3ms 13 Apr 2024 856th HumanoidCPU 131 870 4ms 13 Apr 2024 856th KatieLG 🇬🇧 131 870 3ms 13 Apr 2024 856th Yewzir 🇧🇪 131 870 4ms 13 Apr 2024 856th bac0id 131 870 4ms 25 Jun 2024 856th KatieLG-Transpiler 🇬🇧 131 870 3ms 16 Aug 2024 856th Mabeloid 🇳🇴 131 870 3ms 17 Sep 2024 856th gigaprofisi 🇺🇸 131 870 3ms 6 Nov 2025 864th dokutan 130 800 129ms 3 Feb 2025 865th KatieLG 🇬🇧 130 835 417ms 26 days ago 866th MeWhenI 🇻🇦 130 870 64ms 13 Apr 2024 866th HumanoidCPU 130 870 67ms 13 Apr 2024 866th Yewzir 🇧🇪 130 870 64ms 13 Apr 2024 866th bac0id 130 870 69ms 25 Jun 2024 866th KatieLG-Transpiler 🇬🇧 130 870 78ms 16 Aug 2024 866th Mabeloid 🇳🇴 130 870 65ms 17 Sep 2024 866th xyangst 130 870 67ms 3 Oct 2024 866th CaedenHarper 🇨🇦 130 870 72ms 20 Jan 2025 874th dokutan 129 782 1ms 6 Oct 2024 875th KatieLG 🇬🇧 129 852 10ms 26 days ago 876th MarkShcerbakov 128 780 385ms 14 Aug 2024 877th KatieLG 🇬🇧 128 826 105ms 26 days ago 878th HumanoidCPU 128 882 110ms 13 Apr 2024 878th Yewzir 🇧🇪 128 882 111ms 13 Apr 2024 878th dokutan 128 882 108ms 14 Apr 2024 First Prev 801–880 of 1,434 Next Last