The Calendar hole will go live in approximately 7 days. Why not try and solve it ahead of time?
Zeckendorf Representation in Python 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 81st blaztoma 🇱🇹 628 129 11ms 5 days ago 82nd moustave 618 131 11ms 31 Mar 2025 83rd adamnielson42 🇺🇸 614 132 10ms 7 Oct 2024 84th msbranicky 604 134 9ms 1 Jul 2024 84th Emutis 🇱🇹 604 134 10ms 3 Nov 2024 86th FortuiteMan 🇫🇷 600 135 13ms 3 days ago 87th guilhem-roy 🇫🇷 596 136 1,008ms 10 Jul 2024 87th aalec 596 136 10ms 22 Nov 2025 89th wobblybits 591 137 10ms 19 Aug 2025 89th shelerr 591 137 10ms 22 Aug 2025 89th retrohun 591 137 13ms 23 Oct 2025 92nd ZakkkkAttackkkk 🇵🇭 587 138 11ms 2 Jul 2024 92nd dirckvdende 587 138 10ms 2 Aug 2025 94th elgan65536 583 139 11ms 5 Jul 2024 94th cykim8811 583 139 10ms 10 Jul 2024 94th Alex-x90 🇺🇸 583 139 13ms 14 Jul 2024 94th vhoulbreque 🇫🇷 583 139 38ms 9 Feb 2025 98th Natanaelel 🇸🇪 579 140 10ms 2 Jul 2024 99th neihousaigaai 570 142 10ms 29 Sep 2024 100th Stockoh 🇫🇷 566 143 11ms 29 Sep 2024 100th snydej 566 143 30ms 21 Nov 2024 102nd scpchicken 🇵🇼 563 144 31ms 13 Jul 2024 103rd commandblockguy 🇺🇸 559 145 12ms 1 Jul 2024 103rd jared-hughes 559 145 10ms 3 Jul 2024 105th KrausRaus 🇺🇸 555 146 10ms 4 Jul 2024 105th ComputerKWasTaken 🇺🇸 555 146 11ms 4 Jul 2024 105th hellwue 555 146 28ms 18 Jul 2024 105th btjones0 555 146 9ms 7 Feb 2025 109th fgrosshans 🇫🇷 547 148 10ms 9 Jul 2024 110th StefanHabel 🇨🇦 544 149 11ms 22 Mar 2025 111th BREMAUCY 🇫🇷 540 150 10ms 3 Jul 2024 112th roguh 🇬🇹 536 151 11ms 30 Jul 2024 113th hiichbindermax 533 152 10ms 15 Jul 2024 113th InigoK 🇺🇸 533 152 214ms 4 Sep 2025 113th Andrey2001 533 152 11ms 6 days ago 116th leon-w 529 153 10ms 24 Jul 2024 117th CutSandstone 519 156 9ms 2 Jul 2024 118th mbittner20 516 157 9ms 11 Jul 2024 118th Vaekor 516 157 10ms 23 Jul 2024 118th theadamabrams 516 157 11ms 26 Dec 2024 121st jacekwladzinski 509 159 10ms 7 Oct 2025 122nd vgamula 🇺🇦 506 160 35ms 3 Jul 2024 123rd jtaxen 500 162 10ms 2 Jul 2024 123rd nstearns96 🇬🇧 500 162 12ms 9 Jul 2024 125th Pyroan 497 163 10ms 14 May 2025 126th OCNeve 494 164 9ms 3 Jul 2024 126th Upload-and-View 🇺🇦 494 164 10ms 9 Aug 2025 128th AtengChen 491 165 10ms 14 Aug 2024 129th marcin7Cd 476 170 10ms 11 Jul 2024 129th Mabeloid 🇳🇴 476 170 12ms 17 Sep 2024 129th YAJUE114514 476 170 10ms 31 Jul 2025 132nd sheen4n 474 171 10ms 21 Jul 2024 133rd klixel 🇨🇦 468 173 11ms 20 Jan 2025 134th croc54 466 174 10ms 17 Jan 2025 135th ginop 435 186 10ms 2 Jul 2024 135th inverseLorentz 🇦🇺 435 186 10ms 8 Jul 2024 137th OllieBoyne 🇬🇧 429 189 10ms 12 Jul 2024 138th zt14427 399 203 9ms 1 Jul 2024 139th jameswmccarty 367 221 10ms 10 Jul 2024 140th azure-blondon 355 228 10ms 7 Jul 2024 141st yuchuehw 354 229 10ms 5 Jul 2024 142nd TheZwierzLF 🇵🇱 335 242 12ms 25 Nov 2025 143rd galloj 🇨🇿 333 243 15ms 26 Aug 2024 144th Zhenyu-Bo 293 276 10ms 1 Aug 2025 145th aksyristos 230 352 10ms 27 Sep 2024 146th AidanWalter 113 716 10ms 3 Jan 2025 First Prev 81–146 of 146