The Calendar hole will go live in approximately 9 days. Why not try and solve it ahead of time?
Roman to Arabic 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 881st Brianzhengca 503 143 19ms 5 Feb 2021 881st TobyBoyne 🇬🇧 503 143 19ms 14 Apr 2022 883rd orthoplex 🇨🇽 502 68 41ms 9 Oct 2020 884th JGDoerrer 502 200 493ms 5 Jan 2022 885th nyoshe 500 163 3ms 25 Jan 2025 886th celiendonze 🇨🇭 499 144 20ms 14 Apr 2023 886th Bulmenisaurus 499 144 18ms 1 Jul 2024 888th somebody1234 497 152 14ms 24 Mar 2018 888th tekaireb 497 152 14ms 24 Jul 2021 890th masinag 🇮🇹 497 164 3ms 25 Nov 2024 891st lmolteno 496 145 29ms 3 Mar 2021 891st guilhem-roy 🇫🇷 496 145 21ms 7 Mar 2022 891st frankgraziano 496 145 20ms 24 Apr 2025 891st TheZwierzLF 🇵🇱 496 145 19ms 21 May 2025 895th JDiLenarda 🇫🇷 496 193 1,504ms 30 Oct 2020 896th StarmaQ 495 181 11ms 7 Feb 2021 897th Stockoh 🇫🇷 494 131 701ms 24 Jun 2024 897th TheZwierzLF 🇵🇱 494 131 1,249ms 24 Nov 2025 899th jessegyger 494 153 15ms 7 Nov 2022 900th InigoK 🇺🇸 492 146 24ms 26 Aug 2025 901st knightry 492 205 647ms 8 Feb 2021 902nd clementblaudeau 489 147 19ms 7 Jun 2021 902nd StefanHabel 🇨🇦 489 147 19ms 31 Dec 2022 902nd yuchuehw 489 147 21ms 3 Jan 2024 905th CaedenHarper 🇨🇦 488 328 1,730ms 12 Oct 2025 906th brimstonetrader 487 228 325ms 27 Mar 2024 907th yokasuretsu 486 148 28ms 21 Apr 2018 907th AgathokakologicalBit 486 148 27ms 3 Aug 2019 907th TaserTheFox 🇺🇸 486 148 19ms 8 May 2023 907th adamnielson42 🇺🇸 486 148 20ms 8 Aug 2023 907th jtaxen 486 148 22ms 28 Apr 2024 907th o0BlackDragon0o 486 148 28ms 8 Sep 2024 907th Bombalech 486 148 26ms 8 Sep 2024 914th b10011 🇫🇮 482 149 35ms 12 Jun 2023 915th postie77 482 162 369ms 16 Mar 2023 916th Natanaelel 🇸🇪 481 71 41ms 16 Nov 2021 916th 4hg 🇺🇸 481 71 46ms 19 Jun 2024 918th bac0id 481 209 492ms 11 Jan 2025 919th alphafalfa 479 131 100ms 1 Aug 2025 920th sambirnbaum1 479 150 19ms 6 Sep 2019 920th MaxElf999 479 150 26ms 20 Oct 2022 920th nstearns96 🇬🇧 479 150 26ms 8 Dec 2022 920th Florian-Mt 479 150 19ms 14 Nov 2023 924th pranaygp 479 158 14ms 13 May 2020 925th ian-h-chamberlain 🇺🇸 476 151 21ms 17 Dec 2019 925th qwjhvbxi 476 151 19ms 7 Feb 2024 927th SpareManiKatti 476 159 13ms 11 Sep 2021 927th blaztoma 🇱🇹 476 159 14ms 16 Sep 2025 929th olleicua 🇺🇸 475 101 146ms 25 Feb 2025 930th tailorspy 474 212 75ms 13 Sep 2024 931st galloj 🇨🇿 473 152 20ms 10 Jan 2023 932nd jared-hughes 472 213 2,755ms 3 Aug 2022 933rd baumpilz 472 214 710ms 20 Jan 2021 934th cafehaine 🇫🇷 471 190 7ms 27 Apr 2022 935th myfatemi04 470 153 21ms 10 Jan 2018 935th jhpaques 🇫🇷 470 153 19ms 28 Jul 2022 937th Jm-Fox 470 161 13ms 22 Feb 2020 938th Ripick 470 191 396ms 11 Jul 2024 939th neel11235813 470 268 35ms 27 Dec 2022 940th RDShah 467 154 24ms 31 Jan 2020 940th dzshn 467 154 17ms 9 Jun 2021 940th bbakersmith 467 154 28ms 28 Jun 2022 940th aksyristos 467 154 21ms 8 Mar 2023 940th tobyLovick 467 154 19ms 7 Dec 2023 940th EnTerr 467 154 19ms 25 Aug 2024 940th Pyroan 467 154 22ms 3 Nov 2025 947th ian-h-chamberlain 🇺🇸 466 175 4ms 17 Dec 2019 948th dzhang314 464 155 19ms 14 Aug 2019 948th za3k 464 155 22ms 11 Oct 2022 948th r-benson 🇬🇧 464 155 27ms 1 Feb 2023 948th Hortaros 464 155 19ms 14 Apr 2023 952nd c0d3-4-F00d 🇩🇪 463 176 4ms 19 Apr 2022 953rd edsrzf 🇳🇿 463 268 288ms 27 Sep 2024 954th MiffOttah 462 169 359ms 21 Nov 2021 955th GrayJoKing 🇦🇺 462 337 14ms 25 Jul 2020 956th G33kDude 461 156 18ms 20 Mar 2019 956th cellobix 461 156 23ms 15 Aug 2019 956th BREMAUCY 🇫🇷 461 156 25ms 2 Jan 2024 956th hiichbindermax 461 156 20ms 15 Sep 2024 956th M4rc0g1 461 156 21ms 21 Nov 2025 First Prev 881–960 of 1,453 Next Last