The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
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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 ovs-code 🇩🇪 739 103 361ms 6 Mar 2024 321st alemelis 739 103 330ms 5 Oct 2024 323rd MeWhenI 🇻🇦 739 145 4,966ms 1 Dec 2024 324th Bonjour27891 🇻🇳 738 105 15ms 13 Mar 2022 325th edsrzf 🇳🇿 737 162 2ms 22 Aug 2025 326th sean-niemann 🇺🇸 737 172 632ms 116 mins ago 327th jared-hughes 731 134 9ms 17 May 2023 328th stefangimmillaro 731 208 169ms 21 Apr 2024 329th janbehrens 🇩🇪 730 126 11ms 16 Jul 2022 330th m-tkach 🇺🇦 729 174 602ms 25 Sep 2025 331st stefangimmillaro 728 227 41ms 26 Apr 2025 332nd jared-hughes 727 149 69ms 9 Mar 2024 333rd SirBogman 🇺🇸 725 105 347ms 14 Jun 2024 333rd Daniel-Ellison 725 105 259ms 13 Sep 2025 335th annaproxy 725 107 10ms 7 Jul 2022 336th janbehrens 🇩🇪 723 131 4ms 5 Jan 2024 337th jared-hughes 723 501 10ms 8 Jul 2024 338th adyache 🇺🇸 722 168 9ms 4 Jul 2023 339th Steffan153 🇫🇮 719 70 3ms 11 Jul 2024 340th rucin93 🇵🇱 719 112 138ms 31 Oct 2024 341st ZakkkkAttackkkk 🇵🇭 718 108 17ms 9 Jul 2022 341st dokutan 718 108 25ms 10 Apr 2025 343rd Andrey-Plotnikov 718 128 10ms 17 Jun 2023 344th retrohun 717 91 5ms 24 Aug 2025 345th dokutan 716 85 77ms 13 Sep 2025 346th edsrzf 🇳🇿 714 195 273ms 9 days ago 347th KasperKivimaeki 🇫🇮 713 152 399ms 21 days ago 348th nwellnhof 🇩🇪 709 71 3ms 22 May 2022 349th MeWhenI 🇻🇦 708 86 96ms 3 Sep 2023 349th FlorianCassayre 🇫🇷 708 86 119ms 6 May 2024 351st janbehrens 🇩🇪 708 179 511ms 16 Jul 2022 352nd itsh01 707 130 11ms 23 Aug 2022 352nd thisishowmymindworks 🇳🇴 707 130 10ms 15 Jun 2024 354th commandblockguy 🇺🇸 705 110 14ms 22 Aug 2023 354th snoozingnewt 🇨🇦 705 110 10ms 3 Nov 2023 354th ovs-code 🇩🇪 705 110 12ms 2 Nov 2025 357th jared-hughes 705 130 2ms 17 Jul 2022 358th kmathis22 704 180 603ms 23 Oct 2025 359th TravisEz13 702 114 257ms 5 Jun 2020 360th SirBogman 🇺🇸 702 135 4ms 24 Feb 2020 361st MeWhenI 🇻🇦 701 202 4ms 23 May 2023 362nd MeWhenI 🇻🇦 700 199 365ms 9 Feb 2023 363rd nstearns96 🇬🇧 699 87 88ms 17 Jan 2023 364th MeWhenI 🇻🇦 699 109 353ms 14 Feb 2023 365th Shanethegamer 🇺🇸 699 111 12ms 8 Apr 2025 366th Steffan153 🇫🇮 699 155 72ms 8 Feb 2024 367th jared-hughes 699 171 2ms 26 Aug 2022 368th stefangimmillaro 696 200 315ms 26 Sep 2023 369th dokutan 695 102 423ms 28 Mar 2025 370th Shanethegamer 🇺🇸 688 103 462ms 7 May 2025 370th snoozingnewt 🇨🇦 688 103 489ms 28 Sep 2025 372nd voytxt 🇨🇿 688 117 127ms 3 Aug 2024 373rd GrayJoKing 🇦🇺 687 83 212ms 20 Dec 2023 374th Seek64 🇩🇪 686 113 15ms 7 Nov 2025 375th dokutan 686 134 10ms 29 Mar 2025 376th nwellnhof 🇩🇪 683 138 408ms 27 Jun 2023 377th SirBogman 🇺🇸 683 162 165ms 6 Dec 2021 378th anter69 🇭🇺 679 81 33ms 17 Sep 2024 379th stefangimmillaro 678 187 604ms 6 Oct 2025 380th roupiq 🇵🇱 677 160 67ms 15 Mar 2024 381st SirBogman 🇺🇸 676 206 331ms 21 May 2020 382nd dokutan 675 241 2,355ms 2 Nov 2025 383rd chartung17 674 115 20ms 1 Jan 2024 383rd HPWiz 🇳🇿 674 115 22ms 4 Nov 2025 385th emplv 🇱🇻 673 207 373ms 18 Jul 2022 386th SirBogman 🇺🇸 671 97 38ms 2 Sep 2022 387th DialFrost 🇸🇬 671 120 129ms 4 Aug 2024 388th sisyphus-ppcg 🇦🇺 670 82 42ms 23 Jan 2021 388th stefangimmillaro 670 82 47ms 4 Aug 2022 388th prplz 🇦🇺 670 82 49ms 1 Nov 2022 388th GrayJoKing 🇦🇺 670 82 36ms 20 Dec 2023 388th ovs-code 🇩🇪 670 82 53ms 1 Feb 2024 388th emgordon154 670 82 50ms 16 Sep 2025 394th SirBogman 🇺🇸 670 227 170ms 14 Apr 2021 395th BlankSpruce 669 162 76ms 20 Aug 2024 396th argusdusty 🇺🇸 666 209 399ms 29 Dec 2020 396th weliveinhell 🇭🇹 666 209 304ms 30 May 2024 396th CaedenHarper 🇨🇦 666 209 314ms 29 Oct 2025 399th ovs-code 🇩🇪 663 107 714ms 31 Oct 2025 400th emgordon154 663 117 17ms 21 Apr 2025 First Prev 321–400 of 1,385 Next Last