The Calendar hole will go live in approximately 3 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 79th rucin93 🇵🇱 896 87 11ms 11 Jul 2025 79th snoozingnewt 🇨🇦 896 87 11ms 1 Oct 2025 83rd DialFrost 🇸🇬 895 125 456ms 24 Sep 2025 83rd sean-niemann 🇺🇸 895 125 458ms 24 Sep 2025 83rd nwellnhof 🇩🇪 895 125 578ms 25 Sep 2025 83rd JayXon 🇺🇸 895 125 464ms 26 Sep 2025 83rd stefangimmillaro 895 125 477ms 6 Oct 2025 83rd MeWhenI 🇻🇦 895 125 447ms 7 Nov 2025 89th xsot 🇸🇬 894 79 6ms 26 Apr 2025 90th lifthrasiir 🇰🇷 893 42 2ms 29 Nov 2024 91st sean-niemann 🇺🇸 893 122 414ms 6 Jul 2024 91st snyderek 🇺🇸 893 122 424ms 17 Dec 2024 93rd JayXon 🇺🇸 892 95 2ms 7 Jul 2024 94th SirBogman 🇺🇸 891 55 178ms 2 Jul 2024 95th kg583 🇺🇸 891 101 12ms 35 hours ago 96th lifthrasiir 🇰🇷 890 80 363ms 2 Dec 2024 97th JayXon 🇺🇸 890 97 100ms 7 Jul 2024 97th Shanethegamer 🇺🇸 890 97 101ms 16 Sep 2024 99th JayXon 🇺🇸 889 111 2ms 6 Jul 2024 100th JayXon 🇺🇸 888 153 273ms 4 Jul 2024 100th emplv 🇱🇻 888 153 317ms 4 Jul 2024 102nd JayXon 🇺🇸 886 115 383ms 5 Jul 2024 102nd tomtheisen 🇺🇸 886 115 388ms 7 Nov 2024 104th kumavale 886 150 156ms 28 Nov 2025 105th sean-niemann 🇺🇸 885 82 754ms 23 Oct 2025 106th GrayJoKing 🇦🇺 884 95 89ms 17 Aug 2024 106th mousetail 🇳🇱 884 95 19ms 28 Sep 2024 106th ovs-code 🇩🇪 884 95 9ms 10 Oct 2024 109th albanian-laundromat 883 64 3ms 7 days ago 110th Steffan153 🇫🇮 882 71 128ms 18 Aug 2024 110th sean-niemann 🇺🇸 882 71 125ms 8 Jan 2025 112th ovs-code 🇩🇪 882 78 311ms 8 Jul 2024 113th nwellnhof 🇩🇪 882 154 277ms 10 Jul 2024 114th MeWhenI 🇻🇦 881 99 20ms 16 Dec 2024 114th GrayJoKing 🇦🇺 881 99 21ms 3 Feb 2025 116th kg583 🇺🇸 881 115 20ms 18 May 2025 117th saito-ta 🇯🇵 880 72 2ms 2 Jul 2024 118th JayXon 🇺🇸 880 116 3,380ms 25 Jan 2025 119th JayXon 🇺🇸 880 151 150ms 29 Nov 2025 120th emgordon154 879 81 445ms 25 Mar 2025 120th albanian-laundromat 879 81 353ms 4 Aug 2025 122nd lynn 879 129 135ms 2 Jul 2024 123rd error256 878 97 64ms 2 Jul 2024 124th namelessiw 878 116 435ms 20 Jun 2025 125th tailorspy 878 124 397ms 10 Jul 2024 125th KasperKivimaeki 🇫🇮 878 124 428ms 28 Nov 2025 127th JayXon 🇺🇸 878 132 99ms 5 Jul 2024 127th Shanethegamer 🇺🇸 878 132 102ms 13 Sep 2024 129th DialFrost 🇸🇬 877 99 13ms 17 Mar 2025 130th JayXon 🇺🇸 877 106 107ms 24 May 2025 131st starfihs 876 89 30ms 2 Jul 2024 132nd emgordon154 875 40 61ms 21 Nov 2025 133rd JayXon 🇺🇸 874 131 342ms 6 Jul 2024 133rd Shanethegamer 🇺🇸 874 131 364ms 13 Sep 2024 135th GrayJoKing 🇦🇺 873 91 874ms 6 Jul 2024 136th DialFrost 🇸🇬 873 100 20ms 15 Dec 2024 137th IanUtley 873 105 15ms 1 Jul 2024 137th GrayJoKing 🇦🇺 873 105 15ms 3 Jul 2024 139th Shanethegamer 🇺🇸 873 117 3,253ms 25 Oct 2024 140th Shanethegamer 🇺🇸 872 115 4ms 13 Sep 2024 141st Steffan153 🇫🇮 872 130 133ms 1 Jul 2024 141st ovs-code 🇩🇪 872 130 161ms 2 Jul 2024 143rd MeWhenI 🇻🇦 871 117 344ms 19 Jun 2025 143rd sean-niemann 🇺🇸 871 117 349ms 20 Jun 2025 143rd stefangimmillaro 871 117 374ms 20 Jun 2025 146th inventshah 871 125 395ms 16 days ago 147th stefangimmillaro 871 156 296ms 22 Aug 2024 148th MeWhenI 🇻🇦 870 62 7ms 7 Aug 2024 149th JayXon 🇺🇸 870 120 422ms 5 Jul 2024 150th kg583 🇺🇸 867 128 40ms 24 May 2025 150th edsrzf 🇳🇿 867 128 41ms 16 Aug 2025 152nd JayXon 🇺🇸 867 154 2ms 7 Jul 2024 152nd DialFrost 🇸🇬 867 154 3ms 28 Nov 2025 154th Shanethegamer 🇺🇸 865 119 39ms 15 Sep 2024 155th KrausRaus 🇺🇸 864 80 9ms 2 Jul 2024 155th duckyluuk 🇳🇱 864 80 10ms 3 Sep 2024 155th Shanethegamer 🇺🇸 864 80 10ms 13 Sep 2024 158th sean-niemann 🇺🇸 864 98 2ms 19 Nov 2025 159th Steffan153 🇫🇮 864 100 95ms 5 Jul 2024 160th ovs-code 🇩🇪 864 126 405ms 1 Jul 2024 First Prev 81–160 of 681 Next Last