The Calendar hole will go live in approximately 10 days. Why not try and solve it ahead of time?
Zeckendorf Representation 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 159th stefangimmillaro 872 117 377ms 20 Jun 2025 162nd Steffan153 🇫🇮 872 130 133ms 1 Jul 2024 162nd ovs-code 🇩🇪 872 130 161ms 2 Jul 2024 164th JayXon 🇺🇸 871 99 2ms 7 Jul 2024 165th inventshah 871 125 490ms 9 days ago 166th MeWhenI 🇻🇦 870 62 7ms 7 Aug 2024 167th JayXon 🇺🇸 870 120 422ms 5 Jul 2024 168th bnic24 869 123 10ms 29 Jul 2024 168th iosovi 🇷🇴 869 123 11ms 9 Aug 2024 168th plcc0 869 123 10ms 4 Apr 2025 168th KasperKivimaeki 🇫🇮 869 123 10ms 5 Jul 2025 168th fuzzylojik-golf 🇺🇸 869 123 10ms 6 Jul 2025 168th rucin93 🇵🇱 869 123 11ms 6 Jul 2025 168th snoozingnewt 🇨🇦 869 123 10ms 1 Oct 2025 168th ryyyn 🇺🇸 869 123 30ms 11 days ago 176th Shanethegamer 🇺🇸 868 113 75ms 5 Dec 2024 177th sean-niemann 🇺🇸 868 134 97ms 1 Jul 2024 177th MeWhenI 🇻🇦 868 134 99ms 1 Jul 2024 179th m-tkach 🇺🇦 868 136 30ms 27 Sep 2024 180th JayXon 🇺🇸 867 154 2ms 7 Jul 2024 180th DialFrost 🇸🇬 867 154 3ms 22 days ago 182nd ovs-code 🇩🇪 865 99 77ms 9 days ago 183rd Shanethegamer 🇺🇸 865 119 39ms 15 Sep 2024 184th edsrzf 🇳🇿 865 132 41ms 24 May 2025 184th kg583 🇺🇸 865 132 38ms 24 May 2025 186th KrausRaus 🇺🇸 864 80 9ms 2 Jul 2024 186th duckyluuk 🇳🇱 864 80 10ms 3 Sep 2024 186th Shanethegamer 🇺🇸 864 80 10ms 13 Sep 2024 189th sean-niemann 🇺🇸 864 82 6ms 1 Jul 2024 190th sean-niemann 🇺🇸 864 98 2ms 19 Nov 2025 191st Steffan153 🇫🇮 864 100 95ms 5 Jul 2024 192nd ovs-code 🇩🇪 864 126 502ms 1 Jul 2024 193rd ovs-code 🇩🇪 863 121 474ms 27 Jul 2024 194th 2bular 862 65 32ms 7 Nov 2025 195th JayXon 🇺🇸 862 86 133ms 30 Oct 2024 196th SirBogman 🇺🇸 862 103 490ms 4 Jul 2024 197th mousetail 🇳🇱 862 124 12ms 2 Jul 2024 197th FlorianCassayre 🇫🇷 862 124 10ms 6 Jul 2024 197th codingisgreatbutiamnot 862 124 10ms 24 Aug 2024 197th mathisfun271 862 124 31ms 3 Oct 2024 201st Steffan153 🇫🇮 862 140 128ms 25 Jul 2024 201st emgordon154 862 140 23ms 10 Jun 2025 203rd Shanethegamer 🇺🇸 862 158 265ms 13 Sep 2024 204th Steffan153 🇫🇮 861 76 47ms 1 Jul 2024 204th error256 861 76 51ms 1 Jul 2024 206th DialFrost 🇸🇬 861 108 121ms 24 May 2025 207th Steffan153 🇫🇮 861 115 2ms 1 Jul 2024 208th Shanethegamer 🇺🇸 860 132 173ms 13 Sep 2024 209th Shanethegamer 🇺🇸 860 155 157ms 16 Sep 2024 210th MeWhenI 🇻🇦 859 133 43ms 13 Feb 2025 211th DialFrost 🇸🇬 858 136 14ms 4 Jul 2024 212th m-tkach 🇺🇦 857 157 25ms 5 Jul 2024 213th rucin93 🇵🇱 856 99 2ms 19 Nov 2025 213th GolfingSuccess 🇬🇷 856 99 2ms 20 Nov 2025 215th DialFrost 🇸🇬 856 110 38ms 28 Feb 2025 216th DialFrost 🇸🇬 856 122 402ms 27 Nov 2024 217th Steffan153 🇫🇮 856 138 30ms 2 Jul 2024 217th Shanethegamer 🇺🇸 856 138 29ms 13 Sep 2024 219th sean-niemann 🇺🇸 856 159 265ms 1 Jul 2024 220th Lv0Sys 🇵🇱 855 125 11ms 9 days ago 221st ovs-code 🇩🇪 854 101 2ms 2 Jul 2024 221st nwellnhof 🇩🇪 854 101 2ms 2 Jul 2024 221st inventshah 854 101 2ms 2 Jul 2024 221st Steffan153 🇫🇮 854 101 2ms 3 Jul 2024 225th kg583 🇺🇸 854 104 429ms 1 Jul 2024 226th stefangimmillaro 854 147 43ms 13 Jul 2025 227th sean-niemann 🇺🇸 851 157 3ms 24 Aug 2025 228th edsrzf 🇳🇿 851 160 273ms 17 Dec 2024 229th Natanaelel 🇸🇪 850 77 55ms 1 Jul 2024 229th sean-niemann 🇺🇸 850 77 53ms 15 Oct 2025 231st sean-niemann 🇺🇸 849 123 422ms 4 Jul 2024 232nd stefangimmillaro 849 137 99ms 6 Jan 2025 233rd starfihs 848 126 29ms 2 Jul 2024 233rd zbreit 🇺🇸 848 126 10ms 9 Jul 2024 233rd StardustGogeta 848 126 10ms 9 Jul 2024 233rd andrewjc2000 848 126 12ms 25 Jul 2025 233rd annaproxy 848 126 11ms 31 Aug 2025 238th namelessiw 848 132 458ms 10 Oct 2025 239th sean-niemann 🇺🇸 847 102 106ms 14 days ago 240th GolfingSuccess 🇬🇷 847 103 19ms 8 Jan 2025 First Prev 161–240 of 695 Next Last