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 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 481st Shanethegamer 🇺🇸 742 116 26ms 21 Jul 2021 481st jeff-at-tamer-dot-codes 🇺🇸 742 116 21ms 8 Sep 2023 481st elgan65536 742 116 21ms 31 Mar 2024 481st Flekay 🇩🇪 742 116 27ms 10 Jul 2025 485th janbehrens 🇩🇪 742 128 75ms 21 Jan 2021 486th DialFrost 🇸🇬 742 133 24ms 16 Apr 2025 487th albanian-laundromat 742 193 10ms 14 Jul 2025 488th MeWhenI 🇻🇦 741 82 127ms 7 Dec 2022 489th jwhear 🇺🇸 741 296 1,805ms 30 Sep 2024 490th flawr 740 197 364ms 1 Mar 2019 491st btnlq 738 151 23ms 20 Jan 2022 492nd rucin93 🇵🇱 738 160 53ms 20 Aug 2025 493rd HumanoidCPU 737 106 389ms 31 Oct 2024 494th elisherer 🇮🇱 737 118 13ms 8 Apr 2019 494th tayloia 🇬🇧 737 118 36ms 15 May 2023 494th ovs-code 🇩🇪 737 118 13ms 18 Nov 2024 497th yzhs 🇩🇪 736 117 28ms 25 Oct 2020 497th annaproxy 736 117 29ms 31 Oct 2021 497th jakobkordez 🇸🇮 736 117 21ms 17 Oct 2022 497th DialFrost 🇸🇬 736 117 21ms 22 Dec 2022 497th neel11235813 736 117 33ms 18 Jan 2023 497th jatloe 736 117 19ms 5 Oct 2024 503rd emplv 🇱🇻 736 134 33ms 3 Jun 2024 504th yzhs 🇩🇪 736 198 321ms 24 Jul 2021 504th Natanaelel 🇸🇪 736 198 318ms 2 May 2025 506th stefangimmillaro 735 169 109ms 29 Nov 2022 507th stefangimmillaro 734 197 548ms 6 Oct 2025 508th olivermrose 🇺🇸 732 83 73ms 19 Sep 2021 508th anter69 🇭🇺 732 83 51ms 12 Feb 2024 510th blaztoma 🇱🇹 731 119 13ms 4 Oct 2025 511th SirBogman 🇺🇸 730 63 7ms 3 Jan 2022 511th Steffan153 🇫🇮 730 63 19ms 2 Mar 2023 513th emgordon154 730 103 142ms 6 Sep 2024 514th MeWhenI 🇻🇦 729 91 94ms 7 Jul 2024 514th Steffan153 🇫🇮 729 91 87ms 9 Jul 2024 516th nsprd 729 118 30ms 19 Jan 2024 516th driri85 729 118 25ms 7 Jan 2025 518th strout 729 200 342ms 16 Aug 2022 519th primo-ppcg 🇹🇭 725 136 13ms 3 Jul 2023 520th adriweb 🇫🇷 724 160 35ms 21 Aug 2023 521st prplz 🇦🇺 723 84 89ms 17 Mar 2020 522nd albanian-laundromat 723 119 21ms 24 Apr 2025 523rd anter69 🇭🇺 723 125 1,168ms 13 Mar 2025 524th lynn 721 92 96ms 13 Mar 2023 524th sisyphus-ppcg 🇦🇺 721 92 88ms 14 Mar 2023 524th Yewzir 🇧🇪 721 92 79ms 6 Mar 2024 527th Shanethegamer 🇺🇸 720 161 8ms 16 Apr 2022 527th dokutan 720 161 18ms 10 Apr 2025 529th zygoloid 720 187 86ms 11 Aug 2024 530th namelessiw 720 201 548ms 8 Oct 2025 531st Indivicivet 719 67 21ms 30 Mar 2021 531st KatieLG 🇬🇧 719 67 21ms 24 May 2021 533rd boxjelly 718 203 348ms 23 Feb 2021 533rd HallMatthew314 718 203 371ms 14 Feb 2022 535th Babafaba 717 109 435ms 25 days ago 536th FortuiteMan 🇫🇷 717 120 21ms 23 Apr 2023 536th tri1212 🇻🇳 717 120 547ms 30 Jun 2024 538th elgan65536 717 229 269ms 28 Mar 2024 539th DialFrost 🇸🇬 717 367 722ms 17 Apr 2025 540th h3ra993huskp 🇯🇵 716 202 576ms 19 days ago 541st Yewzir 🇧🇪 716 215 293ms 5 Jan 2024 542nd MarcMush 🇫🇷 714 108 1,021ms 3 Jan 2024 543rd annaproxy 713 93 81ms 16 Mar 2023 544th Shanethegamer 🇺🇸 713 122 16ms 1 Dec 2022 545th sean-niemann 🇺🇸 712 167 447ms 10 Jan 2024 546th fkantelberg 711 121 18ms 14 Jul 2023 547th nwellnhof 🇩🇪 709 110 706ms 23 Jul 2023 548th primo-ppcg 🇹🇭 709 204 643ms 2 Sep 2020 549th MeWhenI 🇻🇦 709 215 56ms 29 Apr 2025 550th JunkIce 705 122 20ms 3 Dec 2024 551st DialFrost 🇸🇬 705 134 288ms 15 Aug 2024 552nd aditsu 705 162 4,462ms 9 Sep 2025 553rd janbehrens 🇩🇪 704 140 15ms 12 Nov 2023 554th billings7 🇬🇧 703 169 389ms 21 Nov 2021 555th angel-p57 🇯🇵 703 238 13ms 18 May 2022 556th justecorruptio 702 124 15ms 14 Apr 2018 557th AlephSquirrel 701 58 124ms 31 May 2023 558th Steffan153 🇫🇮 701 110 978ms 30 May 2024 559th P-Quentin 🇫🇷 700 123 28ms 5 Aug 2022 559th RaBa21 🇭🇺 700 123 22ms 17 Jul 2025 First Prev 481–560 of 1,859 Next Last
