The Calendar hole will go live in approximately 16 hours. 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 80th albanian-laundromat 868 110 11ms 24 Jun 2025 82nd edsrzf 🇳🇿 868 130 12ms 16 Aug 2025 83rd HPWiz 🇳🇿 867 97 10ms 14 Nov 2023 84th saito-ta 🇯🇵 865 151 70ms 1 Nov 2023 85th ovs-code 🇩🇪 865 195 63ms 4 Nov 2023 86th albanian-laundromat 864 111 791ms 28 Sep 2025 87th ovs-code 🇩🇪 864 188 156ms 17 Nov 2023 88th kg583 🇺🇸 863 174 15ms 11 Mar 2025 89th edsrzf 🇳🇿 862 177 3ms 28 Jun 2025 90th mwoghiren 🇨🇦 861 114 10ms 5 Nov 2023 91st edsrzf 🇳🇿 861 160 113ms 27 Jun 2025 92nd SirBogman 🇺🇸 860 72 2ms 2 Nov 2023 93rd jeff-at-tamer-dot-codes 🇺🇸 860 111 11ms 3 Nov 2023 93rd lifthrasiir 🇰🇷 860 111 11ms 16 Nov 2024 95th edsrzf 🇳🇿 860 164 42ms 20 Nov 2025 96th edsrzf 🇳🇿 858 170 7ms 27 Jun 2025 97th albanian-laundromat 858 192 4ms 6 Jul 2025 98th snoozingnewt 🇨🇦 857 152 136ms 22 Nov 2025 99th GolfingSuccess 🇬🇷 857 178 7ms 1 Nov 2023 100th rhdqor213 856 174 2ms 26 Feb 2024 101st GrayJoKing 🇦🇺 855 165 60ms 30 Sep 2024 102nd Sakisan 🇧🇪 855 190 159ms 9 Nov 2023 103rd neel11235813 854 105 347ms 1 Apr 2024 104th emgordon154 854 125 1,051ms 28 Sep 2025 105th Sp3000 🇦🇺 854 138 23ms 4 Nov 2023 106th Shanethegamer 🇺🇸 854 169 360ms 2 Nov 2023 107th MeWhenI 🇻🇦 854 182 141ms 24 Jun 2024 108th edsrzf 🇳🇿 850 158 3,736ms 30 Aug 2025 109th GrayJoKing 🇦🇺 850 169 109ms 21 days ago 110th Shanethegamer 🇺🇸 849 198 578ms 1 Nov 2023 111th IanUtley 849 200 25ms 17 Nov 2023 112th CLOStrophobic 🇮🇹 848 177 35ms 6 Mar 2025 113th stefangimmillaro 848 206 147ms 31 Jan 2025 114th lifthrasiir 🇰🇷 846 106 343ms 2 Dec 2024 114th albanian-laundromat 846 106 344ms 4 Aug 2025 116th saito-ta 🇯🇵 846 176 2ms 2 Nov 2023 117th kg583 🇺🇸 846 182 58ms 20 Jul 2025 117th edsrzf 🇳🇿 846 182 190ms 16 Aug 2025 119th saito-ta 🇯🇵 845 58 143ms 1 Nov 2023 119th ovs-code 🇩🇪 845 58 122ms 15 Jul 2024 121st duckyluuk 🇳🇱 845 159 3,372ms 4 Nov 2024 122nd lyphyser 843 200 398ms 1 Nov 2023 123rd anter69 🇭🇺 841 85 72ms 27 Mar 2024 124th Shanethegamer 🇺🇸 840 164 123ms 11 Nov 2023 125th emgordon154 839 117 10ms 8 Aug 2024 126th Shanethegamer 🇺🇸 839 206 1,381ms 1 Nov 2023 127th Shanethegamer 🇺🇸 839 208 156ms 30 May 2024 128th ndren 837 114 100ms 8 Nov 2023 129th duckyluuk 🇳🇱 837 174 52ms 1 Jul 2025 130th emgordon154 837 201 581ms 1 Oct 2025 131st MichalMarsalek 🇨🇿 834 173 389ms 1 Nov 2023 132nd edsrzf 🇳🇿 834 226 109ms 28 Jun 2025 133rd SirBogman 🇺🇸 833 233 41ms 3 Jun 2025 134th snoozingnewt 🇨🇦 833 234 106ms 23 days ago 134th edsrzf 🇳🇿 833 234 118ms 7 days ago 136th MichalMarsalek 🇨🇿 832 118 10ms 1 Nov 2023 137th lyphyser 832 179 2ms 1 Nov 2023 138th wyarde 830 115 10ms 2 Nov 2023 139th Shanethegamer 🇺🇸 830 251 41ms 28 Sep 2024 140th lynn 829 196 158ms 8 Jan 2025 141st Yax42 🇫🇷 828 172 422ms 15 Apr 2025 142nd Kacarott 🇦🇺 826 174 68ms 21 days ago 143rd sean-niemann 🇺🇸 825 119 10ms 21 Mar 2025 144th typeswitch-dev 🇵🇹 825 216 13ms 23 Aug 2025 145th nwellnhof 🇩🇪 823 111 196ms 21 Apr 2025 146th ovs-code 🇩🇪 823 148 17ms 27 Oct 2024 147th MeWhenI 🇻🇦 823 200 8ms 6 Aug 2024 148th stefangimmillaro 823 236 42ms 4 Jun 2025 149th SirBogman 🇺🇸 822 110 493ms 27 Jan 2024 150th MeWhenI 🇻🇦 822 130 1,039ms 15 Apr 2025 151st janbehrens 🇩🇪 821 181 8ms 22 Dec 2023 152nd MeWhenI 🇻🇦 821 233 41ms 13 Jul 2024 153rd Shanethegamer 🇺🇸 819 206 2,540ms 7 Nov 2023 154th lyphyser 819 254 242ms 1 Nov 2023 155th rucin93 🇵🇱 818 120 10ms 31 May 2025 156th emgordon154 818 138 9ms 29 Jul 2025 157th revlayle 🇺🇸 818 174 373ms 20 Apr 2024 158th Shanethegamer 🇺🇸 818 190 126ms 24 May 2025 159th sean-niemann 🇺🇸 817 106 122ms 19 May 2025 160th GrayJoKing 🇦🇺 816 208 158ms 8 Nov 2023 First Prev 81–160 of 501 Next Last