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 161st ovs-code 🇩🇪 935 68 39ms 24 Mar 2023 162nd sisyphus-ppcg 🇦🇺 931 106 20ms 2 Jul 2023 163rd primo-ppcg 🇹🇭 930 73 486ms 5 Oct 2020 164th m-tkach 🇺🇦 930 84 84ms 10 Jan 2024 164th error256 930 84 87ms 5 Jan 2025 166th primo-ppcg 🇹🇭 929 88 62ms 24 Dec 2021 166th nwellnhof 🇩🇪 929 88 44ms 28 Jun 2023 166th ovs-code 🇩🇪 929 88 61ms 22 Feb 2025 169th ovs-code 🇩🇪 929 112 645ms 9 Feb 2025 169th Lydxn 🇨🇦 929 112 554ms 9 Feb 2025 171st magnusmalm 928 52 16ms 29 Apr 2018 171st t8rsalad 928 52 23ms 17 Aug 2018 171st yzhs 🇩🇪 928 52 17ms 29 Feb 2020 171st alexhuntley 928 52 22ms 11 Apr 2021 171st mhgockel 928 52 20ms 26 Apr 2023 171st vindarel 928 52 21ms 15 Apr 2024 177th primo-ppcg 🇹🇭 928 130 21ms 6 Oct 2021 178th JayXon 🇺🇸 928 156 526ms 25 Sep 2025 179th GrayJoKing 🇦🇺 923 68 8ms 15 Apr 2021 180th ovs-code 🇩🇪 923 72 160ms 8 Jul 2024 181st JayXon 🇺🇸 922 129 410ms 29 Jun 2023 182nd ovs-code 🇩🇪 921 98 816ms 9 Feb 2025 183rd hallvabo 🇳🇴 921 131 19ms 15 Sep 2022 183rd Steffan153 🇫🇮 921 131 46ms 30 May 2024 185th primo-ppcg 🇹🇭 917 89 554ms 25 Aug 2020 186th JayXon 🇺🇸 917 147 399ms 6 Feb 2023 187th nwellnhof 🇩🇪 917 170 313ms 28 Jun 2023 188th primo-ppcg 🇹🇭 915 99 1,129ms 24 Dec 2021 189th saito-ta 🇯🇵 915 104 20ms 20 Oct 2023 190th pardouin 🇫🇷 914 132 39ms 15 Mar 2024 191st canissimia 🇦🇶 912 82 53ms 18 Oct 2022 192nd Steffan153 🇫🇮 912 160 339ms 9 Feb 2024 193rd antimon2 🇯🇵 911 99 686ms 11 Aug 2025 194th JayXon 🇺🇸 911 171 342ms 23 Jul 2023 195th SirBogman 🇺🇸 910 69 7ms 16 Sep 2019 196th xsot 🇸🇬 908 90 59ms 27 Dec 2024 197th GrayJoKing 🇦🇺 905 83 34ms 27 May 2022 198th nwellnhof 🇩🇪 905 160 877ms 25 Sep 2025 199th edsrzf 🇳🇿 904 98 1,065ms 7 Sep 2025 200th primo-ppcg 🇹🇭 904 105 16ms 18 Nov 2022 200th xsot 🇸🇬 904 105 7ms 10 Jun 2023 202nd 2bular 902 49 5ms 11 Apr 2025 203rd Waffle3z 902 142 17ms 17 Apr 2022 204th JayXon 🇺🇸 902 182 166ms 7 Dec 2022 205th sean-niemann 🇺🇸 901 134 40ms 6 Jun 2025 206th primo-ppcg 🇹🇭 901 173 321ms 27 May 2020 207th pardouin 🇫🇷 900 127 3,302ms 20 Nov 2024 208th DialFrost 🇸🇬 899 74 97ms 12 May 2025 209th edsrzf 🇳🇿 899 138 412ms 23 Jul 2025 210th scpchicken 🇵🇼 897 70 11ms 6 Jan 2023 211th xsot 🇸🇬 897 116 581ms 25 Jan 2024 212th ovs-code 🇩🇪 896 127 525ms 4 Aug 2024 213th primo-ppcg 🇹🇭 896 143 8ms 11 Aug 2023 214th JayXon 🇺🇸 895 119 118ms 24 May 2025 215th sisyphus-ppcg 🇦🇺 894 54 149ms 28 Jul 2022 215th ovs-code 🇩🇪 894 54 122ms 10 Feb 2025 217th JayXon 🇺🇸 894 135 43ms 5 Oct 2021 218th edsrzf 🇳🇿 894 139 119ms 21 Jul 2025 219th JayXon 🇺🇸 893 101 544ms 15 Feb 2022 220th edsrzf 🇳🇿 893 106 34ms 22 Jul 2025 221st Lydxn 🇨🇦 891 103 16ms 18 Jul 2025 222nd lyphyser 890 89 54ms 12 Jul 2023 223rd edsrzf 🇳🇿 890 139 19ms 12 Nov 2025 224th FortuiteMan 🇫🇷 889 45 118ms 7 Oct 2024 225th dvargas46 🇺🇸 889 107 1,536ms 22 Jan 2023 226th JayXon 🇺🇸 889 117 695ms 2 Feb 2024 227th Steffan153 🇫🇮 889 128 504ms 26 Jul 2024 228th Steffan153 🇫🇮 889 133 13ms 19 Aug 2024 229th ovs-code 🇩🇪 889 164 325ms 27 Jan 2024 230th dpethes 888 88 89ms 10 Jan 2024 231st pardouin 🇫🇷 888 92 47ms 27 Aug 2025 232nd rucin93 🇵🇱 888 108 175ms 31 Oct 2024 232nd sean-niemann 🇺🇸 888 108 184ms 8 Jan 2025 234th Steffan153 🇫🇮 888 140 117ms 21 Apr 2023 234th sean-niemann 🇺🇸 888 140 112ms 25 Apr 2025 236th xnor-gate 887 136 349ms 4 Dec 2021 236th GolfingSuccess 🇬🇷 887 136 18ms 17 Apr 2022 238th dokutan 885 58 216ms 2 Nov 2025 239th ovs-code 🇩🇪 885 107 20ms 4 Oct 2024 240th primo-ppcg 🇹🇭 884 108 3,841ms 17 Apr 2025 First Prev 161–240 of 1,864 Next Last