The Calendar hole will go live in approximately 3 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 1st primo-ppcg 🇹🇭 1,000 28 46ms 2 Feb 2023 1st ovs-code 🇩🇪 1,000 28 42ms 24 Aug 2023 3rd Bubbler-4 986 32 2ms 13 Jan 2022 3rd rak1507 🇬🇧 986 32 2ms 16 Feb 2022 3rd HPWiz 🇳🇿 986 32 2ms 27 Feb 2022 3rd ovs-code 🇩🇪 986 32 2ms 17 Jan 2023 3rd 2bular 986 32 3ms 22 Aug 2024 3rd bstrat 986 32 2ms 24 Aug 2024 3rd copy 986 32 3ms 9 Sep 2024 10th sisyphus-ppcg 🇦🇺 977 36 3ms 22 May 2022 10th saito-ta 🇯🇵 977 36 3ms 18 Jun 2022 10th Lydxn 🇨🇦 977 36 3ms 6 Jul 2023 13th JayXon 🇺🇸 977 60 11ms 2 Dec 2020 13th Lydxn 🇨🇦 977 60 11ms 12 Jul 2023 13th khvdm 977 60 12ms 24 hours ago 16th nwellnhof 🇩🇪 975 35 143ms 20 Dec 2020 17th Sp3000 🇦🇺 969 35 3ms 4 Jan 2024 18th saito-ta 🇯🇵 966 29 44ms 18 Aug 2022 18th clockworknazo 966 29 49ms 27 Aug 2022 18th emgordon154 966 29 41ms 20 Oct 2025 21st primo-ppcg 🇹🇭 965 60 9ms 1 Dec 2020 21st tomtheisen 🇺🇸 965 60 9ms 1 Dec 2020 21st nwellnhof 🇩🇪 965 60 9ms 20 Dec 2020 21st o0lit3 🇺🇸 965 60 8ms 23 Dec 2020 21st sisyphus-ppcg 🇦🇺 965 60 9ms 23 Dec 2020 21st emplv 🇱🇻 965 60 10ms 23 Dec 2020 21st JayXon 🇺🇸 965 60 9ms 23 Dec 2020 21st Lydxn 🇨🇦 965 60 9ms 28 Jun 2021 21st vlpx 🇫🇮 965 60 9ms 18 Jun 2024 21st sean-niemann 🇺🇸 965 60 9ms 3 Aug 2024 21st Steffan153 🇫🇮 965 60 9ms 3 Aug 2024 21st rucin93 🇵🇱 965 60 9ms 26 Sep 2024 21st lukegustafson 🇺🇸 965 60 9ms 21 Dec 2024 21st emgordon154 965 60 9ms 31 Jan 2025 35th btnlq 961 61 11ms 2 Dec 2020 36th primo-ppcg 🇹🇭 960 39 33ms 29 Jun 2021 36th nwellnhof 🇩🇪 960 39 34ms 2 Sep 2021 36th ovs-code 🇩🇪 960 39 32ms 19 Feb 2023 39th radarek 🇵🇱 960 51 37ms 5 Dec 2024 40th Garklein 🇨🇦 956 33 2ms 10 Jan 2022 40th GolfingSuccess 🇬🇷 956 33 3ms 10 Jan 2022 40th traws0 956 33 2ms 13 Jan 2022 40th ngn 🇧🇬 956 33 2ms 13 Jan 2022 40th GrayJoKing 🇦🇺 956 33 2ms 2 Feb 2022 40th SirBogman 🇺🇸 956 33 2ms 1 Sep 2022 40th 5cw 🇺🇸 956 33 2ms 28 Mar 2023 40th codereport 🇨🇦 956 33 2ms 16 May 2024 40th zacjl 956 33 2ms 24 Aug 2024 40th lynn 956 33 2ms 23 Jun 2025 40th emgordon154 956 33 3ms 19 Oct 2025 40th AlephSquirrel 956 33 2ms 8 Nov 2025 52nd primo-ppcg 🇹🇭 951 37 3ms 1 Dec 2020 52nd nwellnhof 🇩🇪 951 37 3ms 20 Dec 2020 52nd o0lit3 🇺🇸 951 37 3ms 23 Dec 2020 52nd teebee 951 37 3ms 24 Feb 2021 52nd lynn 951 37 3ms 26 Mar 2021 52nd GrayJoKing 🇦🇺 951 37 3ms 6 Apr 2021 52nd JayXon 🇺🇸 951 37 3ms 30 Aug 2021 52nd HPWiz 🇳🇿 951 37 3ms 3 Oct 2021 52nd Steffan153 🇫🇮 951 37 3ms 31 Jan 2023 52nd sean-niemann 🇺🇸 951 37 3ms 21 Jul 2024 62nd GrayJoKing 🇦🇺 948 36 148ms 10 Apr 2021 62nd primo-ppcg 🇹🇭 948 36 125ms 7 Dec 2021 62nd Steffan153 🇫🇮 948 36 144ms 3 Feb 2023 62nd Lydxn 🇨🇦 948 36 133ms 6 Feb 2023 66th canissimia 🇦🇶 947 52 3ms 20 May 2023 67th emgordon154 943 55 998ms 17 Nov 2024 67th pardouin 🇫🇷 943 55 890ms 28 Jul 2025 69th btnlq 943 58 204ms 16 Dec 2020 69th nwellnhof 🇩🇪 943 58 220ms 29 Oct 2021 69th bitsandbeyond 🇳🇱 943 58 248ms 13 Aug 2024 72nd JayXon 🇺🇸 942 52 43ms 4 Dec 2024 72nd pardouin 🇫🇷 942 52 41ms 28 Jul 2025 74th Lydxn 🇨🇦 942 59 360ms 16 Jan 2024 74th JayXon 🇺🇸 942 59 361ms 26 Jan 2024 76th Mukundan314 937 50 40ms 39 hours ago 77th JayXon 🇺🇸 937 53 125ms 17 Aug 2024 77th lukegustafson 🇺🇸 937 53 124ms 21 Dec 2024 79th ovs-code 🇩🇪 935 80 2ms 29 Apr 2024 80th Irratix 🇳🇱 934 62 10ms 1 Dec 2020 1–80 of 2,023 Next Last