The Calendar hole will go live in approximately 12 days. Why not try and solve it ahead of time?
Zeckendorf Representation in all languages in chars. 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 Chars Time Submitted 241st emgordon154 823 124 3,968ms 2 Apr 2025 242nd qpwoeirut 821 95 12ms 1 Oct 2025 243rd xsot 🇸🇬 821 104 2ms 4 Jul 2024 244th jared-hughes 819 175 15ms 16 Jul 2024 245th emgordon154 819 240 1,895ms 23 hours ago 246th MeWhenI 🇻🇦 818 121 2ms 7 Aug 2024 247th primo-ppcg 🇹🇭 818 256 31ms 13 Aug 2025 248th dcgjb 817 83 285ms 3 Jul 2024 248th SirBogman 🇺🇸 817 83 296ms 3 Jul 2024 250th edsrzf 🇳🇿 817 124 25ms 7 days ago 251st albanian-laundromat 817 126 42ms 6 Sep 2025 252nd nwellnhof 🇩🇪 816 60 259ms 5 Jul 2024 253rd m-tkach 🇺🇦 816 148 42ms 15 Jan 2025 254th MeWhenI 🇻🇦 816 241 1,675ms 7 Nov 2025 255th SirBogman 🇺🇸 815 46 3ms 4 Jul 2024 256th DialFrost 🇸🇬 814 104 2ms 19 Nov 2025 257th DialFrost 🇸🇬 814 257 34ms 13 Aug 2025 258th snoozingnewt 🇨🇦 813 142 120ms 37 hours ago 259th jmerle 🇳🇱 812 96 11ms 4 Jul 2024 260th MeWhenI 🇻🇦 811 127 39ms 16 Jul 2024 261st canissimia 🇦🇶 811 213 1,736ms 22 Oct 2024 262nd Shanethegamer 🇺🇸 810 85 344ms 13 Sep 2024 263rd DialFrost 🇸🇬 810 155 42ms 25 Apr 2025 264th lynn 809 146 30ms 2 Jul 2024 265th albanian-laundromat 808 70 2ms 29 Oct 2025 266th duckyluuk 🇳🇱 808 108 11ms 12 Dec 2024 267th error256 807 135 461ms 1 Jul 2024 268th MeWhenI 🇻🇦 806 167 30ms 8 Aug 2024 269th DialFrost 🇸🇬 806 253 530ms 3 Mar 2025 270th GrayJoKing 🇦🇺 805 123 2ms 23 Jul 2024 271st stefangimmillaro 804 127 4,281ms 6 Jan 2025 271st Shanethegamer 🇺🇸 804 127 348ms 25 Feb 2025 273rd sean-niemann 🇺🇸 804 143 349ms 8 Oct 2024 274th DialFrost 🇸🇬 802 145 104ms 27 Nov 2024 275th DialFrost 🇸🇬 802 245 1,717ms 13 Sep 2025 276th albanian-laundromat 801 109 22ms 12 Sep 2025 277th MarcMush 🇫🇷 800 86 685ms 31 Jul 2024 278th albanian-laundromat 800 167 15ms 14 Jul 2025 279th GolfingSuccess 🇬🇷 800 255 712ms 18 Jan 2025 280th MeWhenI 🇻🇦 799 144 366ms 27 Jul 2024 281st GolfingSuccess 🇬🇷 798 107 2ms 1 Jul 2024 281st JohandeRuiter 🇳🇱 798 107 2ms 10 Sep 2024 281st DialFrost 🇸🇬 798 107 2ms 27 Nov 2024 284th Shanethegamer 🇺🇸 797 131 443ms 25 Feb 2025 285th ovs-code 🇩🇪 796 180 10ms 15 Jul 2024 286th jared-hughes 795 87 10ms 3 Jul 2024 287th ovs-code 🇩🇪 794 257 469ms 25 Jan 2025 288th acotis 793 168 163ms 17 May 2025 289th Shanethegamer 🇺🇸 791 119 55ms 25 Feb 2025 290th DialFrost 🇸🇬 791 128 15ms 11 Dec 2024 291st MeWhenI 🇻🇦 791 129 4,115ms 24 Oct 2024 292nd stefangimmillaro 789 169 152ms 25 Aug 2024 293rd DialFrost 🇸🇬 788 144 180ms 16 Nov 2024 294th DialFrost 🇸🇬 787 90 6ms 25 Aug 2024 295th wh3n3v3r 🇨🇿 787 99 10ms 12 Nov 2024 295th KatieLG 🇬🇧 787 99 12ms 25 May 2025 295th Babafaba 787 99 67ms 26 Oct 2025 298th Shanethegamer 🇺🇸 784 139 426ms 25 Feb 2025 299th JayXon 🇺🇸 782 88 1,188ms 8 Jul 2024 300th DialFrost 🇸🇬 781 142 42ms 13 Feb 2025 301st Shanethegamer 🇺🇸 781 171 3ms 13 Sep 2024 302nd Yax42 🇫🇷 779 131 422ms 7 Oct 2025 303rd canissimia 🇦🇶 779 299 6ms 21 Jul 2024 304th emgordon154 778 108 26ms 22 May 2025 305th MeWhenI 🇻🇦 778 269 36ms 20 Apr 2025 306th lukegustafson 🇺🇸 777 89 10ms 2 Jul 2024 307th annaproxy 777 118 16ms 31 Aug 2025 308th MeWhenI 🇻🇦 775 162 41ms 29 Apr 2025 309th DialFrost 🇸🇬 773 89 534ms 8 Jul 2024 310th MeWhenI 🇻🇦 773 141 488ms 1 Jul 2024 311th RaBa21 🇭🇺 772 101 10ms 12 Jul 2025 311th luuumine 🇫🇷 772 101 10ms 14 Oct 2025 313th tatzyr 🇯🇵 770 76 34ms 24 Feb 2025 314th MeWhenI 🇻🇦 770 110 2ms 1 Jul 2024 315th error256 769 111 2ms 1 Jul 2024 316th MeWhenI 🇻🇦 768 174 3ms 2 Jul 2024 317th Shanethegamer 🇺🇸 766 123 8ms 12 Sep 2024 318th kg583 🇺🇸 766 131 4ms 2 Oct 2025 319th DialFrost 🇸🇬 765 83 3ms 22 Jan 2025 320th frankgraziano 765 88 36ms 11 Nov 2025 First Prev 241–320 of 692 Next Last