The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
DFA Simulator 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 161st MeWhenI 🇻🇦 814 179 51ms 13 Jan 2025 162nd edsrzf 🇳🇿 812 183 5ms 28 Jun 2025 163rd nwellnhof 🇩🇪 811 121 18ms 7 Nov 2023 164th m-tkach 🇺🇦 810 302 65ms 1 Nov 2023 165th emgordon154 809 107 114ms 6 Sep 2024 166th stefangimmillaro 809 233 581ms 6 Oct 2025 167th targrik 808 184 4ms 16 May 2025 168th UnderKoen 🇳🇱 808 319 13ms 20 Jan 2025 169th MeWhenI 🇻🇦 806 219 56ms 4 Dec 2023 170th MeWhenI 🇻🇦 806 339 1,648ms 7 Nov 2025 171st emgordon154 801 400 513ms 4 Oct 2025 172nd edsrzf 🇳🇿 794 259 269ms 27 Jun 2025 173rd canissimia 🇦🇶 788 324 1,225ms 27 Dec 2023 174th MeWhenI 🇻🇦 787 333 362ms 28 Mar 2024 175th Shanethegamer 🇺🇸 786 408 534ms 24 Apr 2025 176th stefangimmillaro 785 265 179ms 29 Aug 2024 177th emgordon154 784 186 8ms 22 May 2025 178th snyderek 🇺🇸 784 215 95ms 21 Jun 2025 179th stefangimmillaro 783 176 102ms 5 Nov 2023 180th SirBogman 🇺🇸 782 106 33ms 5 Nov 2023 181st sean-niemann 🇺🇸 782 195 4ms 10 days ago 182nd jared-hughes 781 396 57ms 18 Aug 2024 183rd nwellnhof 🇩🇪 779 116 615ms 14 Nov 2023 184th saito-ta 🇯🇵 778 136 270ms 2 Nov 2023 185th elgan65536 776 123 12ms 31 Mar 2024 186th MeWhenI 🇻🇦 776 480 97ms 1 Aug 2024 187th Natanaelel 🇸🇪 774 80 3ms 10 Nov 2023 188th Shanethegamer 🇺🇸 772 193 2ms 7 Nov 2023 188th Alex-x90 🇺🇸 772 193 2ms 24 Nov 2023 190th KatieLG 🇬🇧 770 124 12ms 25 May 2025 191st Shanethegamer 🇺🇸 770 245 110ms 5 Apr 2025 192nd edsrzf 🇳🇿 769 271 33ms 27 May 2025 193rd snoozingnewt 🇨🇦 765 220 554ms 18 Oct 2025 194th GolfingSuccess 🇬🇷 764 195 2ms 1 Nov 2023 195th HumanoidCPU 763 125 12ms 12 Sep 2024 196th Shanethegamer 🇺🇸 763 213 154ms 28 Nov 2023 197th Command-Master 763 221 2,876ms 2 Nov 2023 198th MeWhenI 🇻🇦 761 221 565ms 13 Jul 2024 199th MeWhenI 🇻🇦 759 192 11ms 7 Dec 2023 200th Artemis21 🇬🇧 757 126 35ms 10 Jan 2025 201st MeWhenI 🇻🇦 757 249 461ms 7 Nov 2025 202nd btjones0 751 127 15ms 7 Nov 2023 202nd SB-945 751 127 12ms 8 Jan 2024 204th MeWhenI 🇻🇦 751 192 369ms 20 Jun 2024 205th stefangimmillaro 751 274 278ms 4 Nov 2023 206th pardouin 🇫🇷 750 179 4,054ms 19 Jul 2025 207th SirBogman 🇺🇸 749 122 226ms 4 Nov 2023 208th Shanethegamer 🇺🇸 749 190 337ms 14 Nov 2023 208th namelessiw 749 190 385ms 31 May 2025 210th Shanethegamer 🇺🇸 747 143 1,024ms 1 Nov 2023 211th edsrzf 🇳🇿 747 208 119ms 29 Jun 2025 212th Alex-x90 🇺🇸 746 226 2,902ms 2 Nov 2023 213th emgordon154 745 279 252ms 7 Mar 2025 214th Shanethegamer 🇺🇸 744 132 10ms 1 Nov 2023 215th MeWhenI 🇻🇦 743 152 14ms 9 May 2024 216th edsrzf 🇳🇿 742 222 12ms 29 Jun 2025 217th GolfingSuccess 🇬🇷 740 228 100ms 1 Nov 2023 218th LukeBridges 🇬🇧 738 133 10ms 14 Aug 2024 219th HumanoidCPU 735 122 367ms 12 Sep 2024 220th CornerMercury 🇬🇧 734 130 27ms 26 Oct 2025 221st snoozingnewt 🇨🇦 731 239 115ms 27 days ago 222nd nwellnhof 🇩🇪 729 98 41ms 4 Nov 2023 223rd MeWhenI 🇻🇦 729 282 256ms 25 Nov 2023 224th weliveinhell 🇭🇹 727 135 10ms 1 Nov 2023 224th lukegustafson 🇺🇸 727 135 10ms 27 Jun 2024 226th tailorspy 724 233 88ms 14 Aug 2024 227th tatzyr 🇯🇵 722 99 58ms 21 Feb 2025 228th GolfingSuccess 🇬🇷 721 68 73ms 1 Nov 2023 228th lynn 721 68 312ms 12 Feb 2024 230th lifthrasiir 🇰🇷 720 86 3ms 6 Dec 2024 231st albanian-laundromat 717 267 44ms 11 Nov 2025 232nd MeWhenI 🇻🇦 715 199 342ms 20 Jun 2024 232nd snoozingnewt 🇨🇦 715 199 372ms 18 Oct 2025 234th prplz 🇦🇺 713 209 2ms 2 Nov 2023 235th keelimeguy 🇺🇸 712 134 55ms 16 Nov 2023 236th billings7 🇬🇧 712 200 387ms 11 Nov 2023 237th Ripick 711 203 328ms 15 Aug 2024 238th MeWhenI 🇻🇦 708 172 47ms 18 Aug 2024 239th KrausRaus 🇺🇸 706 139 10ms 2 Nov 2023 240th ovs-code 🇩🇪 696 187 111ms 21 Apr 2024 First Prev 161–240 of 500 Next Last