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 545th DialFrost 🇸🇬 0 53 5ms 13 Jun 2025 545th MeWhenI 🇻🇦 0 53 5ms 14 Jun 2025 545th rucin93 🇵🇱 0 53 5ms 14 Jun 2025 545th BREMAUCY 🇫🇷 0 53 5ms 1 Jul 2025 545th GolfingSuccess 🇬🇷 0 53 5ms 2 Jul 2025 545th fuzzylojik-golf 🇺🇸 0 53 3ms 15 Jul 2025 545th ovs-code 🇩🇪 0 53 687ms 18 Jul 2025 545th snoozingnewt 🇨🇦 0 53 4ms 15 Sep 2025 545th snoozingnewt 🇨🇦 0 53 611ms 15 Sep 2025 545th snoozingnewt 🇨🇦 0 53 5ms 15 Sep 2025 545th SirBogman 🇺🇸 0 53 781ms 5 Oct 2025 545th plcc0 0 53 638ms 7 Oct 2025 545th CornerMercury 🇬🇧 0 53 606ms 13 Oct 2025 545th frankgraziano 0 53 4ms 26 days ago 575th neel11235813 0 54 569ms 9 Dec 2024 575th CLOStrophobic 🇮🇹 0 54 596ms 22 Jan 2025 575th edsrzf 🇳🇿 0 54 2ms 7 Aug 2025 578th Yewzir 🇧🇪 0 55 4ms 28 Dec 2024 578th JunkIce 0 55 689ms 7 Jan 2025 578th CLOStrophobic 🇮🇹 0 55 4ms 22 Jan 2025 578th commandblockguy 🇺🇸 0 55 716ms 2 Feb 2025 578th bizy-coder 0 55 4,718ms 17 Feb 2025 578th bizy-coder 0 55 611ms 18 Feb 2025 578th MeWhenI 🇻🇦 0 55 732ms 17 Apr 2025 578th Shanethegamer 🇺🇸 0 55 5ms 17 Apr 2025 578th HumanoidCPU 0 55 4ms 18 Apr 2025 578th CaedenHarper 🇨🇦 0 55 4ms 18 Apr 2025 578th rhysdh540 0 55 4,989ms 1 Oct 2025 589th AlephSquirrel 0 56 726ms 25 Nov 2024 589th sisyphus-ppcg 🇦🇺 0 56 8ms 26 Nov 2024 589th targrik 0 56 5ms 12 Jan 2025 589th GolfingSuccess 🇬🇷 0 56 9ms 5 Feb 2025 589th Bubbler-4 0 56 9ms 12 Feb 2025 589th sean-niemann 🇺🇸 0 56 2ms 24 Feb 2025 589th rucin93 🇵🇱 0 56 2ms 19 Apr 2025 589th DialFrost 🇸🇬 0 56 2ms 20 Apr 2025 589th HumanoidCPU 0 56 3ms 21 Apr 2025 589th FEZfan 🇦🇺 0 56 2ms 22 Apr 2025 589th dokutan 0 56 2ms 28 Apr 2025 589th Shanethegamer 🇺🇸 0 56 5ms 8 May 2025 589th GolfingSuccess 🇬🇷 0 56 6ms 8 May 2025 589th rucin93 🇵🇱 0 56 5ms 8 May 2025 589th emplv 🇱🇻 0 56 5ms 8 May 2025 589th sean-niemann 🇺🇸 0 56 5ms 9 May 2025 589th DialFrost 🇸🇬 0 56 6ms 9 May 2025 589th frankgraziano 0 56 2ms 19 May 2025 589th Shanethegamer 🇺🇸 0 56 2ms 6 Jun 2025 589th Shanethegamer 🇺🇸 0 56 1,265ms 4 Jul 2025 589th edsrzf 🇳🇿 0 56 6ms 19 Jul 2025 589th AbrahamJLR 🇻🇪 0 56 5ms 20 Jul 2025 589th albanian-laundromat 0 56 669ms 4 Aug 2025 589th snoozingnewt 🇨🇦 0 56 2ms 15 Sep 2025 589th snoozingnewt 🇨🇦 0 56 6ms 15 Sep 2025 589th CaedenHarper 🇨🇦 0 56 2ms 1 Oct 2025 589th GolfingSuccess 🇬🇷 0 56 2ms 12 Nov 2025 589th edsrzf 🇳🇿 0 56 2ms 12 Nov 2025 589th JOrE20 🇺🇸 0 56 7ms 21 days ago 618th edsrzf 🇳🇿 0 57 9ms 8 Feb 2025 618th emgordon154 0 57 4ms 14 Mar 2025 618th Yewzir 🇧🇪 0 57 3ms 16 Mar 2025 621st kg583 🇺🇸 0 58 6ms 21 Nov 2024 621st khvdm 0 58 10ms 21 Nov 2024 621st ovs-code 🇩🇪 0 58 6ms 25 Nov 2024 621st GolfingSuccess 🇬🇷 0 58 6ms 25 Nov 2024 621st GolfingSuccess 🇬🇷 0 58 4ms 25 Nov 2024 621st AlephSquirrel 0 58 6ms 25 Nov 2024 621st kg583 🇺🇸 0 58 10ms 26 Nov 2024 621st emgordon154 0 58 3ms 26 Nov 2024 621st m-tkach 🇺🇦 0 58 4ms 26 Nov 2024 621st emgordon154 0 58 6ms 27 Nov 2024 621st hallvabo 🇳🇴 0 58 12ms 29 Nov 2024 621st lifthrasiir 🇰🇷 0 58 12ms 30 Nov 2024 621st Shanethegamer 🇺🇸 0 58 4ms 10 Dec 2024 621st MeWhenI 🇻🇦 0 58 3ms 11 Dec 2024 621st Shanethegamer 🇺🇸 0 58 48ms 17 Dec 2024 621st zacjl 0 58 6ms 31 Dec 2024 621st m-tkach 🇺🇦 0 58 10ms 3 Jan 2025 621st CaedenHarper 🇨🇦 0 58 4ms 4 Jan 2025 621st b-illy 🇬🇧 0 58 11ms 4 Jan 2025 621st HumanoidCPU 0 58 13ms 5 Jan 2025 First Prev 561–640 of 2,964 Next Last