The Calendar hole will go live in approximately 41 hours. 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 480th RaBa21 🇭🇺 703 152 10ms 12 Jul 2025 480th InigoK 🇺🇸 703 152 214ms 4 Sep 2025 480th Andrey2001 703 152 11ms 12 days ago 484th MostParsingVex 701 123 2ms 1 Jul 2024 485th targrik 699 101 5ms 18 May 2025 486th leon-w 699 153 10ms 24 Jul 2024 487th jared-hughes 695 124 2ms 3 Jul 2024 488th MeWhenI 🇻🇦 693 107 143ms 3 Aug 2024 489th tatzyr 🇯🇵 689 95 36ms 25 Mar 2025 490th Shanethegamer 🇺🇸 686 103 6ms 13 Sep 2024 491st HumanoidCPU 685 156 10ms 1 Jul 2024 491st CutSandstone 685 156 9ms 2 Jul 2024 493rd Salutations45 684 101 9ms 27 Nov 2024 493rd JOrE20 🇺🇸 684 101 11ms 17 days ago 495th Jacob385 682 164 442ms 16 Aug 2024 496th UnderKoen 🇳🇱 682 177 1,241ms 2 Jul 2024 497th mbittner20 681 157 9ms 11 Jul 2024 497th Vaekor 681 157 10ms 23 Jul 2024 497th theadamabrams 681 157 11ms 26 Dec 2024 500th Alex-x90 🇺🇸 679 127 2ms 12 Jul 2024 501st jacekwladzinski 672 159 10ms 7 Oct 2025 502nd gigaprofisi 🇺🇸 671 103 8ms 21 Jun 2025 503rd MeWhenI 🇻🇦 671 105 217ms 2 Jul 2024 504th iczelia 🇩🇪 671 169 145ms 16 Oct 2025 505th MeWhenI 🇻🇦 669 162 12ms 1 Jul 2024 506th vgamula 🇺🇦 668 160 35ms 3 Jul 2024 507th dokutan 668 200 2ms 4 Feb 2025 508th brimstonetrader 667 170 132ms 10 Jul 2024 509th SirBogman 🇺🇸 666 153 394ms 4 Jul 2024 510th thisishowmymindworks 🇳🇴 665 104 9ms 1 Jul 2024 511th msbranicky 663 134 480ms 1 Jul 2024 511th Babafaba 663 134 499ms 2 Nov 2025 513th jtaxen 660 162 10ms 2 Jul 2024 513th nstearns96 🇬🇧 660 162 12ms 9 Jul 2024 513th wuzekai518 660 162 11ms 23 Jul 2024 513th JOrE20 🇺🇸 660 162 12ms 5 days ago 517th Shanethegamer 🇺🇸 659 203 58ms 13 Sep 2024 518th LHLaurini 🇧🇷 658 131 2ms 1 Jul 2024 519th Pyroan 656 163 10ms 14 May 2025 520th KatieLG 🇬🇧 656 184 919ms 11 Aug 2024 521st snoozingnewt 🇨🇦 654 177 106ms 8 Oct 2025 522nd commandblockguy 🇺🇸 653 136 533ms 1 Sep 2025 523rd OCNeve 652 164 9ms 3 Jul 2024 523rd Upload-and-View 🇺🇦 652 164 10ms 9 Aug 2025 525th AtengChen 648 165 10ms 14 Aug 2024 526th kmathis22 647 173 571ms 22 Oct 2025 527th dokutan 645 153 2ms 2 Jul 2024 528th Feniske 🇫🇷 641 106 233ms 20 Jul 2024 529th CaedenHarper 🇨🇦 641 159 361ms 17 Oct 2025 530th MeWhenI 🇻🇦 636 111 5ms 1 Jul 2024 531st jatloe 636 168 11ms 24 Aug 2024 531st SB-945 636 168 10ms 10 Jan 2025 533rd msbranicky 632 156 2ms 5 Jul 2024 534th CaedenHarper 🇨🇦 632 177 460ms 17 Oct 2025 535th CatsAreFluffy 630 100 54ms 15 Nov 2024 536th MeWhenI 🇻🇦 630 137 96ms 1 Jul 2024 537th msbranicky 630 184 93ms 5 Jul 2024 538th mousetail 🇳🇱 629 137 3ms 1 Jul 2024 539th marcin7Cd 629 170 10ms 11 Jul 2024 539th YAJUE114514 629 170 10ms 31 Jul 2025 541st msbranicky 629 216 258ms 4 Jul 2024 542nd SirBogman 🇺🇸 628 200 44ms 3 Jun 2025 543rd MeWhenI 🇻🇦 627 160 4ms 2 Jul 2024 544th msbranicky 626 163 3,086ms 7 Jan 2025 545th sheen4n 625 171 10ms 21 Jul 2024 546th MeWhenI 🇻🇦 621 91 2ms 1 Jul 2024 547th bac0id 619 176 402ms 1 Jul 2024 548th msbranicky 619 185 342ms 5 Jul 2024 549th dokutan 618 173 9ms 2 Jul 2024 549th klixel 🇨🇦 618 173 11ms 20 Jan 2025 551st HumanoidCPU 617 144 518ms 31 Oct 2024 552nd croc54 614 174 10ms 17 Jan 2025 553rd emgordon154 606 108 36ms 26 Jul 2024 554th Shanethegamer 🇺🇸 604 92 125ms 24 Sep 2024 555th KatieLG 🇬🇧 604 147 543ms 20 Apr 2025 556th LukeBridges 🇬🇧 601 115 10ms 10 Oct 2024 557th olleicua 🇺🇸 600 109 35ms 3 Jul 2024 558th edsrzf 🇳🇿 599 181 9ms 24 Nov 2024 559th MarcMush 🇫🇷 597 118 451ms 31 Jul 2024 560th jared-hughes 596 113 23ms 4 Jul 2024 First Prev 481–560 of 685 Next Last