The Calendar hole will go live in approximately 14 hours. Why not try and solve it ahead of time?
DFA Simulator 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 240th wyarde 781 180 10ms 2 Nov 2023 242nd MeWhenI 🇻🇦 780 480 97ms 1 Aug 2024 243rd anter69 🇭🇺 779 119 48ms 28 Mar 2024 244th edsrzf 🇳🇿 779 222 12ms 29 Jun 2025 245th duckyluuk 🇳🇱 778 147 9ms 6 Nov 2024 246th Shanethegamer 🇺🇸 778 193 2ms 7 Nov 2023 246th Alex-x90 🇺🇸 778 193 2ms 24 Nov 2023 248th Shanethegamer 🇺🇸 778 245 110ms 5 Apr 2025 249th edsrzf 🇳🇿 776 271 33ms 27 May 2025 250th albanian-laundromat 775 223 3ms 24 Jul 2025 251st MeWhenI 🇻🇦 773 75 96ms 26 Jul 2025 252nd Shanethegamer 🇺🇸 773 120 40ms 1 Nov 2023 253rd snoozingnewt 🇨🇦 773 220 554ms 18 Oct 2025 254th Salutations45 772 148 9ms 16 Dec 2024 255th Shanethegamer 🇺🇸 771 213 154ms 28 Nov 2023 256th GolfingSuccess 🇬🇷 770 195 2ms 1 Nov 2023 257th andrewjc2000 769 183 11ms 1 Mar 2025 258th MeWhenI 🇻🇦 769 192 11ms 7 Dec 2023 259th Command-Master 769 221 2,556ms 2 Nov 2023 259th MeWhenI 🇻🇦 769 221 565ms 13 Jul 2024 261st SirBogman 🇺🇸 764 122 224ms 4 Nov 2023 262nd MeWhenI 🇻🇦 763 249 461ms 7 Nov 2025 263rd MichalMarsalek 🇨🇿 762 150 9ms 1 Nov 2023 263rd uttumuttu 🇫🇮 762 150 10ms 3 Nov 2023 265th pardouin 🇫🇷 759 179 3,539ms 19 Jul 2025 266th MeWhenI 🇻🇦 759 192 369ms 20 Jun 2024 267th Shanethegamer 🇺🇸 757 143 1,024ms 1 Nov 2023 268th coreynash 757 151 10ms 10 Jul 2024 268th sean-niemann 🇺🇸 757 151 10ms 21 Mar 2025 270th commandblockguy 🇺🇸 756 186 12ms 6 Nov 2023 271st Shanethegamer 🇺🇸 756 190 337ms 14 Nov 2023 271st namelessiw 756 190 385ms 31 May 2025 273rd edsrzf 🇳🇿 756 208 119ms 29 Jun 2025 274th stefangimmillaro 756 274 278ms 4 Nov 2023 275th CatsAreFluffy 755 105 50ms 26 Nov 2023 276th SirBogman 🇺🇸 752 141 499ms 2 Nov 2023 277th Emutis 🇱🇹 752 187 13ms 12 Oct 2025 278th Alex-x90 🇺🇸 752 226 2,554ms 2 Nov 2023 279th emgordon154 750 279 252ms 7 Mar 2025 280th sean-niemann 🇺🇸 749 206 3ms 19 Nov 2025 281st Protothor 747 153 9ms 10 Jun 2025 282nd GolfingSuccess 🇬🇷 745 228 68ms 1 Nov 2023 283rd lifthrasiir 🇰🇷 740 86 3ms 6 Dec 2024 284th snoozingnewt 🇨🇦 738 239 115ms 20 Nov 2025 285th lelbal 736 191 11ms 12 Nov 2025 286th MeWhenI 🇻🇦 734 282 256ms 25 Nov 2023 287th adamnielson42 🇺🇸 733 192 11ms 1 Nov 2023 288th elgan65536 729 193 12ms 11 Apr 2024 289th tailorspy 729 233 62ms 14 Aug 2024 290th olleicua 🇺🇸 724 128 41ms 19 Jan 2024 291st albanian-laundromat 724 267 44ms 11 Nov 2025 292nd MeWhenI 🇻🇦 722 199 342ms 20 Jun 2024 292nd snoozingnewt 🇨🇦 722 199 372ms 18 Oct 2025 294th commandblockguy 🇺🇸 720 175 614ms 1 Sep 2025 295th billings7 🇬🇧 719 200 387ms 11 Nov 2023 296th prplz 🇦🇺 719 209 2ms 2 Nov 2023 297th MeWhenI 🇻🇦 718 172 47ms 18 Aug 2024 298th Ripick 718 203 328ms 15 Aug 2024 299th HumanoidCPU 714 197 11ms 13 Sep 2024 299th klixel 🇨🇦 714 197 11ms 19 Jul 2025 299th vhoulbreque 🇫🇷 714 197 11ms 26 Nov 2025 302nd KatieLG 🇬🇧 710 198 11ms 12 Jan 2025 302nd Bmrl7 710 198 11ms 23 Nov 2025 304th sean-niemann 🇺🇸 709 167 135ms 19 May 2025 305th emgordon154 708 131 39ms 23 Nov 2024 306th stefangimmillaro 706 162 10ms 5 Nov 2023 307th btjones0 703 200 14ms 7 Nov 2023 308th annaproxy 703 244 22ms 1 Nov 2023 309th helbling 🇨🇭 701 163 10ms 23 Sep 2024 310th h3ra993huskp 🇯🇵 698 272 448ms 30 Nov 2025 311th snoozingnewt 🇨🇦 697 174 363ms 27 Nov 2025 312th SB-945 696 202 11ms 28 Jan 2024 312th Artemis21 🇬🇧 696 202 36ms 24 Dec 2024 314th dylanarmstrong 693 165 10ms 22 Jan 2024 315th AlephSquirrel 693 268 13ms 21 Oct 2024 316th HumanoidCPU 692 182 573ms 13 Sep 2024 317th StefanHabel 🇨🇦 690 204 10ms 11 Feb 2024 318th Shanethegamer 🇺🇸 689 218 8ms 2 Nov 2023 319th MeWhenI 🇻🇦 689 232 15ms 12 Apr 2024 320th MeWhenI 🇻🇦 685 293 43ms 13 Feb 2025 First Prev 241–320 of 505 Next Last