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 399th ToriTheChicken 710 115 11ms 30 May 2023 399th Argeento 🇵🇱 710 115 11ms 8 Sep 2023 403rd stefangimmillaro 708 81 52ms 28 Jan 2022 403rd ovs-code 🇩🇪 708 81 49ms 9 May 2023 405th ndren 708 102 11ms 3 Aug 2025 406th lynn 708 153 844ms 23 Sep 2021 407th Shanethegamer 🇺🇸 708 174 42ms 2 Sep 2021 408th Sp3000 🇦🇺 707 66 3ms 4 Nov 2021 409th MichalMarsalek 🇨🇿 707 142 399ms 17 May 2024 410th Pimentero 🇷🇺 705 114 6ms 10 Nov 2022 411th Waffle3z 705 115 2ms 2 Sep 2021 412th iliazeus 704 116 11ms 4 Sep 2022 412th unfinishedprogram 704 116 12ms 26 Oct 2023 412th CaedenHarper 🇨🇦 704 116 12ms 23 Aug 2025 415th alphafalfa 703 91 4ms 20 Nov 2024 416th 386asm 🇺🇸 703 134 44ms 7 May 2023 417th snoozingnewt 🇨🇦 702 185 3ms 8 days ago 418th annaproxy 701 103 16ms 29 Nov 2022 418th commandblockguy 🇺🇸 701 103 11ms 22 Aug 2023 418th Seek64 🇩🇪 701 103 12ms 19 Sep 2024 421st emgordon154 699 98 133ms 3 Mar 2025 422nd GrayJoKing 🇦🇺 699 116 2ms 30 Nov 2022 423rd dokutan 698 146 86ms 6 Nov 2025 424th dokutan 695 129 141ms 5 days ago 425th dokutan 694 146 445ms 7 Nov 2025 426th 4very 692 118 11ms 10 Jun 2025 426th tetrogem 692 118 11ms 23 Aug 2025 426th snoozingnewt 🇨🇦 692 118 11ms 8 days ago 429th MeWhenI 🇻🇦 692 185 35ms 7 Jun 2023 430th jgbaldwinbrown 691 175 382ms 21 Jul 2022 431st revlayle 🇺🇸 690 129 512ms 6 Jun 2023 432nd AlephSquirrel 690 133 4ms 6 Aug 2024 433rd primo-ppcg 🇹🇭 688 105 12ms 4 Mar 2022 434th emgordon154 686 51 52ms 16 Nov 2025 435th DialFrost 🇸🇬 686 119 12ms 28 Sep 2023 435th CarsonChr 🇺🇸 686 119 11ms 6 Apr 2024 437th snoozingnewt 🇨🇦 686 161 94ms 20 Nov 2025 438th dokutan 685 131 2ms 5 Nov 2025 439th bbakersmith 684 128 15ms 7 Jun 2022 440th Kacarott 🇦🇺 683 126 85ms 9 days ago 441st AlephSquirrel 682 97 652ms 21 Jan 2024 441st m-tkach 🇺🇦 682 97 469ms 29 Jan 2024 441st MeWhenI 🇻🇦 682 97 691ms 24 May 2024 444th stefangimmillaro 681 106 14ms 12 Mar 2022 444th emplv 🇱🇻 681 106 14ms 16 Nov 2022 444th AlephSquirrel 681 106 11ms 27 May 2023 447th stefangimmillaro 681 118 6ms 6 Sep 2022 448th two-bad 🇬🇧 680 120 12ms 7 Feb 2024 449th Steffan153 🇫🇮 677 160 753ms 31 May 2024 449th dokutan 677 160 798ms 8 Nov 2025 451st ShiraJoseph 🇺🇸 675 121 12ms 7 May 2022 452nd AdrienHache 🇫🇷 674 132 408ms 30 Dec 2024 453rd Yewzir 🇧🇪 669 108 13ms 15 Feb 2024 454th stefangabos 🇷🇴 669 122 11ms 15 Sep 2022 454th weliveinhell 🇭🇹 669 122 12ms 2 Oct 2023 456th Shanethegamer 🇺🇸 669 131 14ms 10 Dec 2021 457th Shanethegamer 🇺🇸 669 160 8ms 24 Jan 2024 458th stefangimmillaro 666 185 41ms 26 Apr 2025 459th prplz 🇦🇺 665 163 803ms 25 Sep 2021 460th blaztoma 🇱🇹 665 182 227ms 17 days ago 461st galloj 🇨🇿 665 217 9ms 22 Apr 2024 462nd targrik 664 121 7ms 27 Aug 2025 463rd targrik 664 123 12ms 20 Mar 2025 464th snoozingnewt 🇨🇦 664 137 144ms 8 days ago 465th jakobkordez 🇸🇮 663 109 40ms 28 Nov 2022 465th inventshah 663 109 13ms 20 Jul 2023 467th jerrandolph 661 183 353ms 20 Oct 2023 468th MeWhenI 🇻🇦 660 178 5ms 29 Apr 2022 469th dbkirk4211 659 124 11ms 3 May 2024 470th MeWhenI 🇻🇦 658 100 424ms 14 Feb 2023 471st primo-ppcg 🇹🇭 657 74 180ms 16 Sep 2021 471st scpchicken 🇵🇼 657 74 194ms 9 Jan 2023 473rd klixel 🇨🇦 657 206 221ms 19 Jun 2023 474th hemphen 654 136 456ms 30 Aug 2022 475th MWI-polygolf 654 169 123ms 6 Dec 2023 476th The3gs 653 207 153ms 28 Nov 2024 477th Haksell 🇦🇶 652 88 51ms 22 Feb 2023 477th olleicua 🇺🇸 652 88 48ms 15 Feb 2024 477th emgordon154 652 88 53ms 4 Sep 2025 480th dokutan 649 125 2ms 6 Nov 2025 First Prev 401–480 of 1,268 Next Last