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 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 161st sean-niemann 🇺🇸 864 82 6ms 1 Jul 2024 162nd sean-niemann 🇺🇸 864 98 2ms 19 Nov 2025 163rd Steffan153 🇫🇮 864 100 95ms 5 Jul 2024 164th ovs-code 🇩🇪 864 126 502ms 1 Jul 2024 165th ovs-code 🇩🇪 863 121 474ms 27 Jul 2024 166th 2bular 862 65 32ms 7 Nov 2025 167th JayXon 🇺🇸 862 99 2ms 7 Jul 2024 168th Steffan153 🇫🇮 862 140 128ms 25 Jul 2024 168th emgordon154 862 140 23ms 10 Jun 2025 170th Shanethegamer 🇺🇸 862 158 265ms 13 Sep 2024 171st DialFrost 🇸🇬 861 108 121ms 24 May 2025 172nd Steffan153 🇫🇮 861 115 2ms 1 Jul 2024 173rd Shanethegamer 🇺🇸 860 132 173ms 13 Sep 2024 174th Shanethegamer 🇺🇸 860 155 157ms 16 Sep 2024 175th snoozingnewt 🇨🇦 857 83 358ms 1 Oct 2025 176th anter69 🇭🇺 857 91 11ms 11 Oct 2024 177th m-tkach 🇺🇦 857 157 25ms 5 Jul 2024 178th rucin93 🇵🇱 856 99 2ms 19 Nov 2025 178th GolfingSuccess 🇬🇷 856 99 2ms 20 Nov 2025 180th DialFrost 🇸🇬 856 110 38ms 28 Feb 2025 181st DialFrost 🇸🇬 856 122 402ms 27 Nov 2024 182nd Steffan153 🇫🇮 856 138 30ms 2 Jul 2024 182nd Shanethegamer 🇺🇸 856 138 29ms 13 Sep 2024 184th sean-niemann 🇺🇸 856 159 265ms 1 Jul 2024 185th stefangimmillaro 854 147 43ms 13 Jul 2025 186th inventshah 853 100 2ms 2 Jul 2024 187th GrayJoKing 🇦🇺 851 102 11ms 23 Jul 2024 188th sean-niemann 🇺🇸 851 157 3ms 24 Aug 2025 189th edsrzf 🇳🇿 851 160 273ms 17 Dec 2024 190th sean-niemann 🇺🇸 849 123 422ms 4 Jul 2024 191st stefangimmillaro 849 137 99ms 6 Jan 2025 192nd namelessiw 848 132 458ms 10 Oct 2025 193rd sean-niemann 🇺🇸 847 102 106ms 14 days ago 194th GolfingSuccess 🇬🇷 847 103 19ms 8 Jan 2025 195th Shanethegamer 🇺🇸 847 127 1,306ms 12 Sep 2024 196th Shanethegamer 🇺🇸 846 117 2ms 12 Sep 2024 197th error256 846 129 7ms 2 Jul 2024 198th albanian-laundromat 846 161 365ms 4 days ago 199th ovs-code 🇩🇪 845 101 2ms 2 Jul 2024 199th nwellnhof 🇩🇪 845 101 2ms 2 Jul 2024 199th Steffan153 🇫🇮 845 101 2ms 3 Jul 2024 202nd Shanethegamer 🇺🇸 844 67 2ms 15 Sep 2024 203rd DialFrost 🇸🇬 844 121 4,059ms 26 Oct 2024 203rd pardouin 🇫🇷 844 121 4,130ms 26 Oct 2024 205th GolfingSuccess 🇬🇷 844 129 459ms 1 Jul 2024 206th mousetail 🇳🇱 843 64 7ms 9 May 2025 207th DialFrost 🇸🇬 843 121 398ms 10 Apr 2025 208th primo-ppcg 🇹🇭 843 149 44ms 2 May 2025 209th DialFrost 🇸🇬 843 158 152ms 6 Apr 2025 210th Shanethegamer 🇺🇸 843 242 479ms 8 Apr 2025 211th Shanethegamer 🇺🇸 841 133 470ms 24 Sep 2025 212th emplv 🇱🇻 841 160 25ms 5 Jul 2024 213th GolfingSuccess 🇬🇷 840 100 14ms 16 Aug 2024 214th typeswitch-dev 🇵🇹 840 130 4ms 7 Jul 2024 215th Shanethegamer 🇺🇸 840 135 127ms 12 Sep 2024 216th Ripick 839 137 345ms 1 Aug 2024 217th gigaprofisi 🇺🇸 838 93 11ms 2 Mar 2025 218th nwellnhof 🇩🇪 837 81 337ms 3 Jul 2024 219th sean-niemann 🇺🇸 837 102 2ms 5 Jul 2024 220th CLOStrophobic 🇮🇹 837 121 25ms 27 Feb 2025 221st GrayJoKing 🇦🇺 836 70 35ms 2 Jul 2024 221st ovs-code 🇩🇪 836 70 39ms 3 Jul 2024 223rd error256 836 95 955ms 1 Jul 2024 223rd stefangimmillaro 836 95 910ms 22 Oct 2024 223rd pardouin 🇫🇷 836 95 967ms 13 Aug 2025 226th primo-ppcg 🇹🇭 835 76 3ms 22 Jan 2025 227th CaedenHarper 🇨🇦 835 163 267ms 17 Nov 2025 228th MeWhenI 🇻🇦 834 133 43ms 13 Feb 2025 229th DialFrost 🇸🇬 831 139 102ms 22 days ago 230th GrayJoKing 🇦🇺 830 124 38ms 6 Jul 2024 230th sean-niemann 🇺🇸 830 124 39ms 16 Jul 2024 232nd JayXon 🇺🇸 830 237 1,669ms 15 Sep 2025 233rd DialFrost 🇸🇬 827 82 243ms 22 Nov 2025 234th Natanaelel 🇸🇪 827 96 938ms 1 Jul 2024 235th GrayJoKing 🇦🇺 827 139 362ms 6 Jul 2024 236th ovs-code 🇩🇪 826 111 15ms 1 Jul 2024 236th kops-cg 826 111 17ms 18 Mar 2025 238th albanian-laundromat 825 88 744ms 23 Nov 2025 239th MeWhenI 🇻🇦 825 165 265ms 1 Jul 2024 240th SirBogman 🇺🇸 824 68 35ms 6 Jul 2024 First Prev 161–240 of 692 Next Last