The Calendar hole will go live in approximately 4 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 711th DanielBash 0 59 13ms 22 Feb 2025 711th persistz 0 59 11ms 30 Jun 2025 711th LostSyntax21 🇬🇧 0 59 7ms 19 Jul 2025 711th vgamula 🇺🇦 0 59 13ms 5 Aug 2025 711th Boowie41 0 59 11ms 10 Nov 2025 711th FlyingPenguin223 0 59 2ms 14 Nov 2025 711th MeWhenI 🇻🇦 0 59 2ms 14 Nov 2025 728th emgordon154 0 60 168ms 28 Nov 2024 728th xsot 🇸🇬 0 60 5ms 4 Dec 2024 728th Shanethegamer 🇺🇸 0 60 152ms 10 Jan 2025 728th emgordon154 0 60 4,893ms 4 Feb 2025 728th klixel 🇨🇦 0 60 94ms 8 Apr 2025 728th swcnt 0 60 16ms 9 Apr 2025 728th rucin93 🇵🇱 0 60 166ms 17 Apr 2025 728th dokutan 0 60 154ms 6 Jun 2025 728th emgordon154 0 60 2ms 5 Aug 2025 728th emgordon154 0 60 89ms 5 Nov 2025 728th Babafaba 0 60 725ms 24 Nov 2025 728th yujqiao 0 60 11ms 12 days ago 740th Shanethegamer 🇺🇸 0 61 12ms 20 Nov 2024 740th stefangimmillaro 0 61 11ms 21 Nov 2024 740th error256 0 61 11ms 21 Nov 2024 740th error256 0 61 119ms 21 Nov 2024 740th ovs-code 🇩🇪 0 61 11ms 25 Nov 2024 740th GolfingSuccess 🇬🇷 0 61 11ms 25 Nov 2024 740th sean-niemann 🇺🇸 0 61 12ms 26 Nov 2024 740th duckyluuk 🇳🇱 0 61 11ms 26 Nov 2024 740th DialFrost 🇸🇬 0 61 12ms 26 Nov 2024 740th rucin93 🇵🇱 0 61 12ms 26 Nov 2024 740th emgordon154 0 61 11ms 28 Nov 2024 740th stefangimmillaro 0 61 5ms 3 Dec 2024 740th lukegustafson 🇺🇸 0 61 13ms 7 Dec 2024 740th MeWhenI 🇻🇦 0 61 12ms 11 Dec 2024 740th emplv 🇱🇻 0 61 12ms 11 Dec 2024 740th voytxt 🇨🇿 0 61 11ms 22 Dec 2024 740th Salutations45 0 61 11ms 29 Dec 2024 740th duckyluuk 🇳🇱 0 61 1,660ms 12 Jan 2025 740th CLOStrophobic 🇮🇹 0 61 12ms 22 Jan 2025 740th voytxt 🇨🇿 0 61 5ms 25 Jan 2025 740th m-tkach 🇺🇦 0 61 11ms 30 Jan 2025 740th Natanaelel 🇸🇪 0 61 12ms 2 Feb 2025 740th CaedenHarper 🇨🇦 0 61 12ms 3 Feb 2025 740th BalaM314 0 61 12ms 4 Feb 2025 740th kg583 🇺🇸 0 61 103ms 5 Feb 2025 740th GolfingSuccess 🇬🇷 0 61 107ms 5 Feb 2025 740th HumanoidCPU 0 61 4ms 7 Feb 2025 740th targrik 0 61 11ms 8 Feb 2025 740th MeWhenI 🇻🇦 0 61 5ms 14 Feb 2025 740th targrik 0 61 5ms 15 Feb 2025 740th attila8192 0 61 12ms 1 Mar 2025 740th targrik 0 61 2ms 14 Mar 2025 740th janlelis 0 61 12ms 31 Mar 2025 740th b-illy 🇬🇧 0 61 11ms 16 Apr 2025 740th janbehrens 🇩🇪 0 61 13ms 17 Apr 2025 740th pardouin 🇫🇷 0 61 12ms 17 Apr 2025 740th Shanethegamer 🇺🇸 0 61 102ms 17 Apr 2025 740th edsrzf 🇳🇿 0 61 12ms 17 Apr 2025 740th HumanoidCPU 0 61 96ms 18 Apr 2025 740th HumanoidCPU 0 61 11ms 18 Apr 2025 740th AlephSquirrel 0 61 11ms 20 Apr 2025 740th Sam-Vrgl 0 61 14ms 13 May 2025 740th c-py 0 61 12ms 14 May 2025 740th albanian-laundromat 0 61 99ms 6 Jun 2025 740th Andrey-Plotnikov 0 61 11ms 19 Jun 2025 740th a6166231 🇨🇳 0 61 12ms 20 Jun 2025 740th elana-teal 0 61 12ms 20 Jun 2025 740th BREMAUCY 🇫🇷 0 61 12ms 1 Jul 2025 740th RYSF13 🇨🇳 0 61 13ms 5 Jul 2025 740th p01 0 61 11ms 28 Jul 2025 740th KrausRaus 🇺🇸 0 61 12ms 29 Jul 2025 740th dmrichwa 🇺🇸 0 61 11ms 29 Jul 2025 740th dokutan 0 61 4ms 5 Aug 2025 740th gitchaell 🇧🇴 0 61 12ms 6 Aug 2025 740th lukepolak 0 61 11ms 7 Aug 2025 740th adrianbgo 0 61 13ms 7 Aug 2025 740th helbling 🇨🇭 0 61 11ms 28 Aug 2025 740th snoozingnewt 🇨🇦 0 61 122ms 15 Sep 2025 740th snoozingnewt 🇨🇦 0 61 12ms 15 Sep 2025 740th larsendaniel 0 61 11ms 7 Nov 2025 740th JOrE20 🇺🇸 0 61 12ms 18 Nov 2025 First Prev 721–800 of 2,972 Next Last