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 481st CaedenHarper 🇨🇦 632 177 460ms 17 Oct 2025 482nd msbranicky 632 184 93ms 5 Jul 2024 483rd CaedenHarper 🇨🇦 630 113 416ms 4 Oct 2024 483rd fuzzylojik-golf 🇺🇸 630 113 555ms 6 Jul 2025 485th MeWhenI 🇻🇦 630 137 96ms 1 Jul 2024 486th msbranicky 630 216 258ms 4 Jul 2024 487th mousetail 🇳🇱 629 124 12ms 2 Jul 2024 487th codingisgreatbutiamnot 629 124 10ms 24 Aug 2024 487th mathisfun271 629 124 31ms 3 Oct 2024 490th SirBogman 🇺🇸 628 200 44ms 3 Jun 2025 491st MeWhenI 🇻🇦 627 160 4ms 2 Jul 2024 492nd msbranicky 626 163 3,967ms 7 Jan 2025 493rd Lv0Sys 🇵🇱 624 125 11ms 10 days ago 494th error256 624 139 11ms 17 Sep 2024 495th KatieLG 🇬🇧 623 111 10ms 5 Oct 2025 496th mousetail 🇳🇱 623 137 3ms 1 Jul 2024 497th msbranicky 622 185 342ms 5 Jul 2024 498th MeWhenI 🇻🇦 621 91 2ms 1 Jul 2024 499th zbreit 🇺🇸 619 126 10ms 9 Jul 2024 499th StardustGogeta 619 126 10ms 9 Jul 2024 499th andrewjc2000 619 126 12ms 25 Jul 2025 499th annaproxy 619 126 11ms 31 Aug 2025 503rd bac0id 619 176 473ms 1 Jul 2024 504th rucin93 🇵🇱 614 102 147ms 31 Oct 2024 505th stefangimmillaro 614 127 11ms 22 Aug 2024 506th error256 608 103 137ms 13 Aug 2024 507th bitsandbeyond 🇳🇱 605 225 265ms 22 Nov 2025 508th blaztoma 🇱🇹 604 129 11ms 2 days ago 509th LukeBridges 🇬🇧 601 115 10ms 10 Oct 2024 510th jared-hughes 596 113 23ms 4 Jul 2024 511th dokutan 596 158 8ms 21 Jul 2025 512th moustave 595 131 11ms 31 Mar 2025 513th error256 593 120 541ms 13 Aug 2024 514th junkondo-jp 591 117 9ms 15 Dec 2024 515th adamnielson42 🇺🇸 591 132 10ms 7 Oct 2024 516th MeWhenI 🇻🇦 588 193 126ms 1 Jul 2024 517th MeWhenI 🇻🇦 585 107 143ms 3 Aug 2024 518th Salutations45 583 97 3ms 29 Dec 2024 519th bitsandbeyond 🇳🇱 583 118 262ms 22 Nov 2025 520th msbranicky 582 134 9ms 1 Jul 2024 520th Emutis 🇱🇹 582 134 10ms 3 Nov 2024 522nd MeWhenI 🇻🇦 581 162 12ms 1 Jul 2024 523rd FortuiteMan 🇫🇷 577 135 13ms 19 hours ago 524th guilhem-roy 🇫🇷 573 136 1,008ms 10 Jul 2024 524th aalec 573 136 10ms 22 Nov 2025 526th wobblybits 569 137 10ms 19 Aug 2025 526th shelerr 569 137 10ms 22 Aug 2025 526th retrohun 569 137 13ms 23 Oct 2025 529th msbranicky 567 235 178ms 4 Jul 2024 530th ZakkkkAttackkkk 🇵🇭 565 138 11ms 2 Jul 2024 530th dirckvdende 565 138 10ms 2 Aug 2025 532nd msbranicky 563 165 139ms 4 Jul 2024 533rd elgan65536 561 139 11ms 5 Jul 2024 533rd cykim8811 561 139 10ms 10 Jul 2024 533rd Alex-x90 🇺🇸 561 139 13ms 14 Jul 2024 533rd vhoulbreque 🇫🇷 561 139 38ms 9 Feb 2025 537th bac0id 561 182 359ms 1 Jul 2024 538th alemelis 559 123 802ms 26 Aug 2024 539th alexsave 558 124 9ms 13 Nov 2024 540th Natanaelel 🇸🇪 557 140 10ms 2 Jul 2024 541st bac0id 551 155 2ms 3 Jul 2024 542nd neihousaigaai 549 142 10ms 29 Sep 2024 543rd Stockoh 🇫🇷 545 143 11ms 29 Sep 2024 543rd snydej 545 143 30ms 21 Nov 2024 545th madex 🇩🇪 544 127 10ms 1 Jul 2024 545th weliveinhell 🇭🇹 544 127 9ms 4 Jul 2024 547th emgordon154 542 108 54ms 26 Jul 2024 548th scpchicken 🇵🇼 541 144 31ms 13 Jul 2024 549th MeWhenI 🇻🇦 540 199 1,243ms 2 Jul 2024 550th commandblockguy 🇺🇸 538 145 12ms 1 Jul 2024 550th jared-hughes 538 145 10ms 3 Jul 2024 552nd olleicua 🇺🇸 537 109 36ms 3 Jul 2024 553rd zakariamouhid 536 129 10ms 3 Jul 2024 554th MeWhenI 🇻🇦 536 162 14ms 2 Jul 2024 555th KrausRaus 🇺🇸 534 146 10ms 4 Jul 2024 555th ComputerKWasTaken 🇺🇸 534 146 11ms 4 Jul 2024 555th hellwue 534 146 28ms 18 Jul 2024 555th btjones0 534 146 9ms 7 Feb 2025 559th Shanethegamer 🇺🇸 532 92 175ms 24 Sep 2024 560th snoozingnewt 🇨🇦 532 130 10ms 29 Sep 2025 First Prev 481–560 of 692 Next Last