The Calendar hole will go live in approximately 16 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 241st GolfingSuccess 🇬🇷 846 105 411ms 1 Jul 2024 241st DialFrost 🇸🇬 846 105 424ms 3 Jul 2024 241st m-tkach 🇺🇦 846 105 431ms 5 Jul 2024 241st sean-niemann 🇺🇸 846 105 447ms 4 Feb 2025 245th error256 846 129 7ms 2 Jul 2024 246th GrayJoKing 🇦🇺 846 138 12ms 24 Jul 2024 247th sean-niemann 🇺🇸 845 102 2ms 5 Jul 2024 248th stefangimmillaro 845 137 99ms 6 Jan 2025 249th Shanethegamer 🇺🇸 844 67 2ms 15 Sep 2024 250th albanian-laundromat 844 86 775ms 7 days ago 251st DialFrost 🇸🇬 844 121 3,606ms 26 Oct 2024 251st pardouin 🇫🇷 844 121 3,666ms 26 Oct 2024 253rd GolfingSuccess 🇬🇷 844 129 392ms 1 Jul 2024 254th albanian-laundromat 844 161 310ms 14 days ago 255th mousetail 🇳🇱 843 64 7ms 9 May 2025 256th Shanethegamer 🇺🇸 843 117 2ms 12 Sep 2024 257th Shanethegamer 🇺🇸 843 135 127ms 12 Sep 2024 258th primo-ppcg 🇹🇭 843 149 44ms 2 May 2025 259th Shanethegamer 🇺🇸 843 242 479ms 8 Apr 2025 260th DialFrost 🇸🇬 842 121 385ms 10 Apr 2025 261st stefangimmillaro 842 127 11ms 22 Aug 2024 262nd DialFrost 🇸🇬 842 139 102ms 29 Nov 2025 263rd Shanethegamer 🇺🇸 841 133 470ms 24 Sep 2025 264th DialFrost 🇸🇬 841 158 152ms 6 Apr 2025 265th GolfingSuccess 🇬🇷 840 100 14ms 16 Aug 2024 266th kg583 🇺🇸 840 129 11ms 4 days ago 267th typeswitch-dev 🇵🇹 840 130 4ms 7 Jul 2024 268th error256 840 139 11ms 17 Sep 2024 269th nwellnhof 🇩🇪 839 81 337ms 3 Jul 2024 270th CLOStrophobic 🇮🇹 837 121 25ms 27 Feb 2025 271st error256 836 95 955ms 1 Jul 2024 271st stefangimmillaro 836 95 910ms 22 Oct 2024 271st pardouin 🇫🇷 836 95 967ms 13 Aug 2025 274th Ripick 836 137 345ms 1 Aug 2024 275th emplv 🇱🇻 836 160 25ms 5 Jul 2024 276th GrayJoKing 🇦🇺 835 124 38ms 6 Jul 2024 276th sean-niemann 🇺🇸 835 124 39ms 16 Jul 2024 278th primo-ppcg 🇹🇭 833 76 3ms 22 Jan 2025 279th CaedenHarper 🇨🇦 833 163 267ms 17 Nov 2025 280th error256 831 118 68ms 27 Nov 2024 281st AlephSquirrel 830 107 422ms 2 Jul 2024 281st bizy-coder 830 107 428ms 2 Jul 2024 283rd JayXon 🇺🇸 830 235 1,661ms 6 days ago 284th Natanaelel 🇸🇪 829 67 170ms 1 Jul 2024 285th lyphyser 829 76 51ms 5 Jul 2024 286th DialFrost 🇸🇬 829 82 240ms 22 Nov 2025 287th xsot 🇸🇬 829 104 2ms 4 Jul 2024 288th blaztoma 🇱🇹 829 129 11ms 12 days ago 289th nwellnhof 🇩🇪 828 79 36ms 2 Jul 2024 290th Natanaelel 🇸🇪 827 96 938ms 1 Jul 2024 291st ovs-code 🇩🇪 826 111 15ms 1 Jul 2024 291st kops-cg 826 111 17ms 18 Mar 2025 293rd emgordon154 826 236 1,702ms 6 days ago 294th SirBogman 🇺🇸 824 68 35ms 6 Jul 2024 295th Kacarott 🇦🇺 824 119 69ms 2 Jul 2024 296th GrayJoKing 🇦🇺 824 139 362ms 6 Jul 2024 297th snoozingnewt 🇨🇦 824 142 111ms 13 days ago 298th emgordon154 823 124 3,774ms 2 Apr 2025 299th MeWhenI 🇻🇦 823 165 265ms 1 Jul 2024 300th albanian-laundromat 822 126 42ms 6 Sep 2025 301st jared-hughes 819 175 15ms 16 Jul 2024 302nd stefangimmillaro 818 80 41ms 22 Aug 2024 302nd Shanethegamer 🇺🇸 818 80 42ms 12 Sep 2024 304th primo-ppcg 🇹🇭 818 256 31ms 13 Aug 2025 305th edsrzf 🇳🇿 817 124 25ms 19 days ago 306th MeWhenI 🇻🇦 816 127 39ms 16 Jul 2024 307th moustave 816 131 11ms 31 Mar 2025 307th gigaprofisi 🇺🇸 816 131 12ms 20 Jun 2025 309th m-tkach 🇺🇦 816 148 42ms 15 Jan 2025 310th SirBogman 🇺🇸 815 46 3ms 4 Jul 2024 311th emgordon154 815 109 370ms 25 Mar 2025 312th MeWhenI 🇻🇦 815 121 2ms 7 Aug 2024 313th DialFrost 🇸🇬 814 104 2ms 19 Nov 2025 314th DialFrost 🇸🇬 814 257 34ms 13 Aug 2025 315th canissimia 🇦🇶 811 213 1,736ms 22 Oct 2024 316th Shanethegamer 🇺🇸 810 87 277ms 12 Sep 2024 317th anter69 🇭🇺 810 132 11ms 5 Jul 2024 317th adamnielson42 🇺🇸 810 132 10ms 7 Oct 2024 319th DialFrost 🇸🇬 810 155 42ms 25 Apr 2025 320th kg583 🇺🇸 809 124 5ms 4 days ago First Prev 241–320 of 688 Next Last