The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Arabic to Roman 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 321st DialFrost 🇸🇬 832 172 32ms 15 Apr 2025 321st sean-niemann 🇺🇸 832 172 29ms 25 Apr 2025 323rd Natanaelel 🇸🇪 831 58 21ms 12 Sep 2021 323rd msbranicky 831 58 23ms 28 Aug 2023 323rd commandblockguy 🇺🇸 831 58 19ms 23 Nov 2023 326th namelessiw 831 143 445ms 15 Jun 2024 327th stefangimmillaro 830 182 122ms 10 Nov 2024 328th andersk 🇺🇸 829 198 169ms 16 Mar 2020 329th commandblockguy 🇺🇸 828 104 25ms 22 Aug 2023 330th DialFrost 🇸🇬 822 110 1,080ms 15 Apr 2025 331st Yewzir 🇧🇪 822 267 1,876ms 25 May 2024 332nd Shanethegamer 🇺🇸 821 95 67ms 30 Jun 2022 332nd dokutan 821 95 67ms 8 Sep 2025 334th thisishowmymindworks 🇳🇴 821 106 19ms 31 Aug 2020 334th MeWhenI 🇻🇦 821 106 18ms 14 Jul 2021 334th akshatj27 🇦🇶 821 106 18ms 11 Jan 2022 334th DialFrost 🇸🇬 821 106 18ms 26 Sep 2023 334th nsprd 821 106 18ms 18 Jan 2024 334th XenThe 🇬🇧 821 106 20ms 1 Jul 2025 340th ovs-code 🇩🇪 821 200 156ms 24 Apr 2025 341st Irratix 🇳🇱 820 105 621ms 7 May 2022 341st KatieLG 🇬🇧 820 105 26ms 25 May 2025 341st duckyluuk 🇳🇱 820 105 821ms 7 Jul 2025 341st ndren 820 105 344ms 19 Oct 2025 345th adyache 🇺🇸 820 112 86ms 12 Jun 2023 346th Ripick 817 59 23ms 17 Mar 2024 347th Yewzir 🇧🇪 817 125 11ms 16 Feb 2024 348th lynn 817 201 179ms 9 Jan 2025 349th dokutan 816 112 15ms 24 Oct 2025 349th HumanoidCPU 816 112 15ms 27 days ago 351st Shanethegamer 🇺🇸 814 49 99ms 7 Dec 2024 351st fuzzylojik-golf 🇺🇸 814 49 97ms 9 Sep 2025 353rd snoozingnewt 🇨🇦 814 96 431ms 5 days ago 354th user189032 814 179 327ms 29 May 2019 355th edsrzf 🇳🇿 814 189 283ms 21 Jul 2025 356th solmyr2000 813 107 14ms 10 Jun 2022 357th MeWhenI 🇻🇦 813 176 16ms 16 Apr 2025 358th sean-niemann 🇺🇸 813 178 597ms 24 Sep 2025 359th plcc0 812 106 22ms 26 Mar 2025 360th primo-ppcg 🇹🇭 812 131 144ms 25 Dec 2020 361st primo-ppcg 🇹🇭 811 143 8ms 11 Aug 2023 362nd nwellnhof 🇩🇪 810 75 48ms 28 Dec 2021 362nd sean-niemann 🇺🇸 810 75 59ms 14 Aug 2025 364th GrayJoKing 🇦🇺 810 150 67ms 20 Nov 2025 365th primo-ppcg 🇹🇭 810 153 367ms 15 Jan 2021 365th JayXon 🇺🇸 810 153 388ms 23 Jul 2025 367th MeWhenI 🇻🇦 807 112 1,220ms 13 Nov 2022 368th frobinsonj 805 108 19ms 6 Dec 2019 368th rambox11 805 108 19ms 6 Dec 2019 368th voytxt 🇨🇿 805 108 14ms 20 Jul 2025 371st Shanethegamer 🇺🇸 805 327 709ms 24 Jan 2025 372nd DialFrost 🇸🇬 804 110 1,030ms 1 Sep 2025 373rd aksyristos 803 60 26ms 8 Feb 2023 374th marshallward 🇺🇸 803 190 50ms 6 May 2025 375th retrohun 802 93 53ms 26 Aug 2024 376th MeWhenI 🇻🇦 799 181 596ms 7 Nov 2025 377th PatrickStephansen 🇿🇦 798 109 23ms 16 Oct 2020 378th m-tkach 🇺🇦 797 108 48ms 2 Dec 2022 379th 2bular 796 49 5ms 11 Apr 2025 380th ovs-code 🇩🇪 795 97 816ms 9 Feb 2025 380th antimon2 🇯🇵 795 97 427ms 11 Aug 2025 382nd targrik 795 124 181ms 17 days ago 383rd sisyphus-ppcg 🇦🇺 794 94 55ms 24 Jun 2022 384th Yewzir 🇧🇪 794 153 54ms 24 Dec 2024 385th SirBogman 🇺🇸 793 80 51ms 28 Aug 2022 386th stefangimmillaro 793 114 992ms 23 Feb 2023 387th niklv 🇷🇺 791 110 16ms 21 Dec 2023 388th anter69 🇭🇺 790 109 40ms 9 Mar 2022 388th dirckvdende 790 109 25ms 6 Jul 2025 390th sean-niemann 🇺🇸 790 112 960ms 12 days ago 391st SirBogman 🇺🇸 789 77 91ms 22 Jan 2024 392nd SirBogman 🇺🇸 788 99 1,086ms 18 May 2024 393rd Ripick 786 87 57ms 17 Mar 2024 394th galloj 🇨🇿 785 95 63ms 22 Jan 2023 395th primo-ppcg 🇹🇭 785 130 10ms 22 Feb 2020 395th KasperKivimaeki 🇫🇮 785 130 8ms 19 Aug 2025 397th Sam-Vrgl 784 111 12ms 13 May 2025 398th Bubbler-4 783 81 39ms 26 Apr 2022 398th rak1507 🇬🇧 783 81 42ms 2 May 2022 400th FlorianCassayre 🇫🇷 782 51 141ms 26 May 2024 First Prev 321–400 of 1,858 Next Last