The Calendar hole will go live in approximately 12 days. Why not try and solve it ahead of time?
Arabic to Roman 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 718th ThatAlo 670 180 23ms 25 Aug 2022 718th StardustGogeta 670 180 21ms 18 Aug 2023 718th Andrey2001 670 180 29ms 25 days ago 724th targrik 669 233 290ms 3 Jul 2025 725th Alex-x90 🇺🇸 668 153 10ms 15 May 2023 726th Yax42 🇫🇷 668 178 420ms 20 Jun 2025 727th CaedenHarper 🇨🇦 667 156 687ms 29 Oct 2025 728th Fishron 667 181 21ms 20 Nov 2022 728th nstearns96 🇬🇧 667 181 26ms 29 Nov 2022 728th pde-bakk 🇳🇱 667 181 23ms 23 Oct 2023 728th elgan65536 667 181 21ms 1 Apr 2024 728th EnTerr 667 181 23ms 8 Sep 2024 728th Josemnz 667 181 22ms 4 May 2025 728th Flekay 🇩🇪 667 181 23ms 10 Jul 2025 735th stackotter 666 227 106ms 29 May 2023 736th KatieLG 🇬🇧 665 138 15ms 16 Nov 2023 737th Andriamanitra 🇫🇮 664 123 59ms 1 Sep 2022 738th alemelis 664 136 994ms 19 Sep 2024 739th Jonatan6 🇩🇰 664 203 101ms 3 Aug 2023 740th Alex-x90 🇺🇸 663 182 48ms 13 Feb 2023 740th cefqrn 663 182 23ms 20 May 2023 740th jeff-at-tamer-dot-codes 🇺🇸 663 182 22ms 8 Sep 2023 740th fgrosshans 🇫🇷 663 182 23ms 16 Jul 2024 744th SirBogman 🇺🇸 663 375 623ms 23 Nov 2022 745th kmathis22 661 219 501ms 11 mins ago 746th Frowny 660 67 9ms 10 Jan 2022 747th MeWhenI 🇻🇦 660 249 168ms 13 Nov 2022 748th olleicua 🇺🇸 659 124 83ms 19 Jan 2024 749th darkoboshkovski 659 155 9ms 12 Jun 2023 750th skps2010 659 183 20ms 31 Dec 2018 750th asheeri 659 183 22ms 14 Aug 2021 750th TaserTheFox 🇺🇸 659 183 26ms 8 May 2023 753rd Mabeloid 🇳🇴 658 158 573ms 17 Sep 2024 754th p-vf 🇨🇭 657 181 403ms 21 Nov 2021 754th Shanethegamer 🇺🇸 657 181 419ms 4 Apr 2023 756th Shanethegamer 🇺🇸 657 218 115ms 11 Sep 2022 757th annaproxy 657 222 339ms 1 Aug 2022 758th Shanethegamer 🇺🇸 657 237 316ms 4 Apr 2023 759th adoxography 656 184 23ms 10 Oct 2019 759th mokymok 🇺🇸 656 184 25ms 8 Dec 2021 759th jakobkordez 🇸🇮 656 184 20ms 17 Oct 2022 759th yishayv 656 184 20ms 23 Jan 2023 759th Bmrl7 656 184 27ms 17 Feb 2024 759th jatloe 656 184 18ms 5 Oct 2024 759th CommandLeo 🇮🇹 656 184 36ms 26 days ago 766th MichalMarsalek 🇨🇿 656 189 452ms 22 Jan 2023 766th Shanethegamer 🇺🇸 656 189 642ms 21 Mar 2023 766th DestyNova 🇮🇪 656 189 447ms 15 Apr 2025 769th jared-hughes 655 97 44ms 16 Apr 2022 770th emgordon154 655 140 21ms 2 Dec 2021 770th Lv0Sys 🇵🇱 655 140 14ms 21 days ago 772nd prestosilver 🇺🇸 655 156 11ms 27 days ago 773rd stefangimmillaro 654 182 438ms 17 Sep 2024 774th Shanethegamer 🇺🇸 653 163 143ms 24 May 2025 775th nsprd 652 185 23ms 19 Jan 2024 775th DxSper 652 185 27ms 16 Feb 2024 775th driri85 652 185 27ms 16 Feb 2024 775th OCNeve 652 185 22ms 18 Jun 2024 775th croc54 652 185 23ms 31 Jan 2025 775th Alpha9584 652 185 20ms 20 Mar 2025 775th Hemanthred2005 652 185 21ms 3 May 2025 775th GodlyProgrammer1 652 185 24ms 20 days ago 783rd jared-hughes 651 141 13ms 10 Sep 2021 783rd Andrey-Plotnikov 651 141 12ms 25 Oct 2024 785th Jonatan6 🇩🇰 651 157 11ms 4 Aug 2023 786th BlankSpruce 651 207 475ms 26 Aug 2022 787th HumanoidCPU 650 160 547ms 31 Oct 2024 787th KatieLG 🇬🇧 650 160 538ms 19 Apr 2025 789th Shanethegamer 🇺🇸 649 139 551ms 8 Jan 2022 790th TheAristos 649 186 28ms 21 Oct 2019 790th CorporalCrawdad 649 186 20ms 3 Oct 2024 792nd HumanoidCPU 649 223 595ms 8 Nov 2025 793rd lynn 648 185 27ms 23 Nov 2021 794th FlyingPenguin223 647 198 6ms 30 Nov 2024 795th uttumuttu 🇫🇮 646 142 24ms 4 Jan 2022 795th iliazeus 646 142 16ms 3 Sep 2022 795th LukeBridges 🇬🇧 646 142 15ms 28 Oct 2022 798th Shanethegamer 🇺🇸 646 147 36ms 5 Nov 2022 799th TheZwierzLF 🇵🇱 646 161 775ms 5 days ago 800th DialFrost 🇸🇬 645 140 654ms 25 May 2024 First Prev 721–800 of 1,864 Next Last