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 401st jared-hughes 688 124 2ms 3 Jul 2024 402nd Shanethegamer 🇺🇸 686 103 6ms 13 Sep 2024 403rd Salutations45 684 101 9ms 27 Nov 2024 403rd JOrE20 🇺🇸 684 101 11ms 15 days ago 405th m-tkach 🇺🇦 684 114 31ms 2 Jul 2024 405th kops-cg 684 114 31ms 24 Feb 2025 407th Jacob385 682 164 442ms 16 Aug 2024 408th UnderKoen 🇳🇱 682 177 1,241ms 2 Jul 2024 409th GolfingSuccess 🇬🇷 678 105 411ms 1 Jul 2024 409th DialFrost 🇸🇬 678 105 424ms 3 Jul 2024 409th m-tkach 🇺🇦 678 105 431ms 5 Jul 2024 412th MeWhenI 🇻🇦 678 107 84ms 7 Aug 2024 413th madex 🇩🇪 678 115 10ms 1 Jul 2024 413th ovs-code 🇩🇪 678 115 10ms 2 Jul 2024 413th bizy-coder 678 115 30ms 2 Jul 2024 413th HPWiz 🇳🇿 678 115 31ms 3 Jul 2024 417th xnor-gate 672 116 31ms 23 Feb 2025 417th MeWhenI 🇻🇦 672 116 30ms 6 May 2025 419th Alex-x90 🇺🇸 672 127 2ms 12 Jul 2024 420th gigaprofisi 🇺🇸 671 103 8ms 21 Jun 2025 421st iczelia 🇩🇪 671 169 145ms 16 Oct 2025 422nd dokutan 668 200 2ms 4 Feb 2025 423rd brimstonetrader 667 170 132ms 10 Jul 2024 424th DialFrost 🇸🇬 666 94 128ms 4 Aug 2024 424th dokutan 666 94 116ms 15 Jun 2025 426th SirBogman 🇺🇸 666 153 394ms 4 Jul 2024 427th dokutan 665 88 38ms 6 Oct 2024 428th dokutan 665 104 9ms 15 Jun 2025 429th AlephSquirrel 665 107 422ms 2 Jul 2024 429th bizy-coder 665 107 428ms 2 Jul 2024 431st lynn 661 118 40ms 1 Jul 2024 431st AlephSquirrel 661 118 30ms 2 Jul 2024 431st Seek64 🇩🇪 661 118 11ms 7 Jul 2024 431st davecame 661 118 12ms 10 Jul 2024 431st Shanethegamer 🇺🇸 661 118 11ms 13 Sep 2024 436th Shanethegamer 🇺🇸 660 110 88ms 13 Sep 2024 437th ovs-code 🇩🇪 660 129 65ms 4 Jul 2024 438th dokutan 659 108 357ms 2 Jul 2024 439th Shanethegamer 🇺🇸 659 203 58ms 13 Sep 2024 440th KatieLG 🇬🇧 656 184 919ms 11 Aug 2024 441st MeWhenI 🇻🇦 655 105 217ms 2 Jul 2024 442nd GolfingSuccess 🇬🇷 655 119 11ms 1 Jul 2024 442nd 5cw 🇺🇸 655 119 10ms 1 Jul 2024 442nd inventshah 655 119 11ms 1 Jul 2024 442nd sisyphus-ppcg 🇦🇺 655 119 40ms 3 Jul 2024 442nd cros107 🇦🇺 655 119 11ms 3 Jul 2024 442nd SirBogman 🇺🇸 655 119 18ms 4 Jul 2024 442nd thatbirdguythatuknownot 655 119 12ms 5 Jul 2024 442nd firegene 🇮🇪 655 119 13ms 1 Aug 2024 442nd bricknellj 655 119 11ms 23 May 2025 451st snoozingnewt 🇨🇦 654 177 106ms 8 Oct 2025 452nd LHLaurini 🇧🇷 652 131 2ms 1 Jul 2024 453rd error256 650 120 11ms 1 Jul 2024 453rd rschwa6308 🇺🇸 650 120 11ms 11 Jul 2024 453rd ahmetdemirag 🇨🇾 650 120 30ms 13 Feb 2025 456th inventshah 647 110 436ms 25 Jul 2024 457th kmathis22 647 173 571ms 22 Oct 2025 458th emgordon154 646 97 130ms 14 Nov 2024 459th Feniske 🇫🇷 641 106 233ms 20 Jul 2024 460th CaedenHarper 🇨🇦 641 159 361ms 17 Oct 2025 461st CaedenHarper 🇨🇦 639 122 11ms 2 Sep 2024 461st Bulmenisaurus 639 122 10ms 9 Oct 2024 461st solisolu 639 122 11ms 9 Nov 2025 464th MeWhenI 🇻🇦 636 111 5ms 1 Jul 2024 465th MeWhenI 🇻🇦 635 112 397ms 1 Jul 2024 466th bnic24 634 123 10ms 29 Jul 2024 466th iosovi 🇷🇴 634 123 11ms 9 Aug 2024 466th robin-scragg 634 123 10ms 25 Jun 2025 466th KasperKivimaeki 🇫🇮 634 123 10ms 5 Jul 2025 466th fuzzylojik-golf 🇺🇸 634 123 10ms 6 Jul 2025 466th ryyyn 🇺🇸 634 123 30ms 18 days ago 472nd msbranicky 632 156 2ms 5 Jul 2024 473rd CaedenHarper 🇨🇦 632 177 460ms 17 Oct 2025 474th CaedenHarper 🇨🇦 630 113 416ms 4 Oct 2024 474th fuzzylojik-golf 🇺🇸 630 113 555ms 6 Jul 2025 476th MeWhenI 🇻🇦 630 137 96ms 1 Jul 2024 477th msbranicky 630 184 93ms 5 Jul 2024 478th mousetail 🇳🇱 629 124 12ms 2 Jul 2024 478th codingisgreatbutiamnot 629 124 10ms 24 Aug 2024 478th mathisfun271 629 124 31ms 3 Oct 2024 First Prev 401–480 of 681 Next Last