The Calendar hole will go live in approximately 13 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 320th DialFrost 🇸🇬 808 81 50ms 19 days ago 322nd duckyluuk 🇳🇱 808 108 11ms 12 Dec 2024 323rd inventshah 807 110 436ms 25 Jul 2024 324th error256 807 135 461ms 1 Jul 2024 325th Shanethegamer 🇺🇸 806 92 131ms 8 Jan 2025 326th GolfingSuccess 🇬🇷 806 107 2ms 1 Jul 2024 326th DialFrost 🇸🇬 806 107 2ms 27 Nov 2024 328th MeWhenI 🇻🇦 806 167 30ms 8 Aug 2024 329th DialFrost 🇸🇬 806 253 530ms 3 Mar 2025 330th stefangimmillaro 804 127 4,281ms 6 Jan 2025 330th Shanethegamer 🇺🇸 804 127 348ms 25 Feb 2025 332nd DialFrost 🇸🇬 804 142 42ms 13 Feb 2025 333rd sean-niemann 🇺🇸 804 143 349ms 8 Oct 2024 334th DialFrost 🇸🇬 802 145 104ms 27 Nov 2024 335th DialFrost 🇸🇬 802 245 1,717ms 13 Sep 2025 336th JayXon 🇺🇸 801 88 1,188ms 8 Jul 2024 337th albanian-laundromat 801 109 22ms 12 Sep 2025 338th MeWhenI 🇻🇦 800 107 84ms 7 Aug 2024 339th lifthrasiir 🇰🇷 800 111 466ms 2 Dec 2024 339th albanian-laundromat 800 111 484ms 9 Aug 2025 341st albanian-laundromat 800 167 15ms 14 Jul 2025 342nd GolfingSuccess 🇬🇷 800 255 712ms 18 Jan 2025 343rd MeWhenI 🇻🇦 799 144 366ms 27 Jul 2024 344th SirBogman 🇺🇸 798 85 249ms 1 Jul 2024 345th JohandeRuiter 🇳🇱 798 108 2ms 2 Sep 2024 346th GrayJoKing 🇦🇺 798 124 2ms 6 Jul 2024 347th msbranicky 798 134 9ms 1 Jul 2024 347th Emutis 🇱🇹 798 134 10ms 3 Nov 2024 347th blaztoma 🇱🇹 798 134 10ms 17 Sep 2025 350th Shanethegamer 🇺🇸 797 131 443ms 25 Feb 2025 351st ovs-code 🇩🇪 796 180 10ms 15 Jul 2024 352nd jared-hughes 795 87 10ms 3 Jul 2024 353rd SirBogman 🇺🇸 794 70 171ms 2 Jul 2024 354th ovs-code 🇩🇪 794 257 469ms 25 Jan 2025 355th MeWhenI 🇻🇦 793 112 397ms 1 Jul 2024 356th acotis 793 168 163ms 17 May 2025 357th DialFrost 🇸🇬 792 89 534ms 8 Jul 2024 358th Shanethegamer 🇺🇸 791 119 55ms 25 Feb 2025 359th DialFrost 🇸🇬 791 128 15ms 11 Dec 2024 360th MeWhenI 🇻🇦 791 129 4,115ms 24 Oct 2024 361st SirBogman 🇺🇸 789 83 32ms 1 Jul 2024 362nd DialFrost 🇸🇬 789 94 128ms 4 Aug 2024 363rd stefangimmillaro 789 169 152ms 25 Aug 2024 364th DialFrost 🇸🇬 788 144 180ms 16 Nov 2024 365th DialFrost 🇸🇬 787 90 6ms 25 Aug 2024 366th CaedenHarper 🇨🇦 786 113 416ms 4 Oct 2024 366th fuzzylojik-golf 🇺🇸 786 113 555ms 6 Jul 2025 368th guilhem-roy 🇫🇷 786 136 1,008ms 10 Jul 2024 368th aalec 786 136 10ms 26 days ago 370th Shanethegamer 🇺🇸 784 139 426ms 25 Feb 2025 371st Shanethegamer 🇺🇸 781 171 3ms 13 Sep 2024 372nd wobblybits 780 137 10ms 19 Aug 2025 372nd shelerr 780 137 10ms 22 Aug 2025 372nd retrohun 780 137 13ms 23 Oct 2025 375th Yax42 🇫🇷 779 131 422ms 7 Oct 2025 376th canissimia 🇦🇶 779 299 6ms 21 Jul 2024 377th emgordon154 778 108 26ms 22 May 2025 378th Shanethegamer 🇺🇸 778 110 88ms 13 Sep 2024 379th MeWhenI 🇻🇦 778 269 36ms 20 Apr 2025 380th error256 777 111 2ms 1 Jul 2024 381st annaproxy 777 118 16ms 31 Aug 2025 382nd ZakkkkAttackkkk 🇵🇭 775 138 11ms 2 Jul 2024 382nd dirckvdende 775 138 10ms 2 Aug 2025 384th MeWhenI 🇻🇦 775 162 41ms 29 Apr 2025 385th kg583 🇺🇸 774 140 9ms 18 Aug 2025 386th MeWhenI 🇻🇦 773 141 488ms 1 Jul 2024 387th snoozingnewt 🇨🇦 772 115 452ms 1 Oct 2025 388th MeWhenI 🇻🇦 770 110 2ms 1 Jul 2024 389th elgan65536 769 139 11ms 5 Jul 2024 389th cykim8811 769 139 10ms 10 Jul 2024 389th Alex-x90 🇺🇸 769 139 13ms 14 Jul 2024 389th vhoulbreque 🇫🇷 769 139 38ms 9 Feb 2025 389th qpwoeirut 769 139 12ms 25 Sep 2025 394th MeWhenI 🇻🇦 768 174 3ms 2 Jul 2024 395th kg583 🇺🇸 766 131 4ms 2 Oct 2025 396th DialFrost 🇸🇬 765 83 3ms 22 Jan 2025 397th frankgraziano 765 88 36ms 11 Nov 2025 398th emgordon154 765 97 130ms 14 Nov 2024 399th emplv 🇱🇻 764 113 101ms 5 Jul 2024 400th Natanaelel 🇸🇪 764 140 10ms 2 Jul 2024 First Prev 321–400 of 695 Next Last