The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
12 Days of Christmas in Python in chars. 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 800th RubiksImplosion 349 548 13ms 4 Dec 2022 800th felixcroc 349 548 9ms 1 Apr 2023 800th epic-programmer-guy 349 548 9ms 29 Dec 2023 800th MassimoParisi 349 548 16ms 24 Sep 2024 800th Shotokhan 349 548 9ms 15 Sep 2025 800th Evytag 🇫🇷 349 548 10ms 9 Oct 2025 807th afyber 348 549 10ms 26 Jun 2019 807th my1e5 348 549 9ms 29 Nov 2021 807th oakesy 348 549 9ms 19 May 2024 807th CyberTapir 348 549 10ms 30 Aug 2024 807th martindotexe 🇳🇴 348 549 16ms 15 Feb 2025 807th shawncrabtree 348 549 13ms 21 Jun 2025 807th Sharrrkkk 348 549 9ms 21 Jul 2025 807th dvckyduck 348 549 9ms 26 Oct 2025 815th Esterfox610 347 550 10ms 17 Aug 2022 815th llama1024 347 550 9ms 5 Dec 2022 815th lorienaquarius 347 550 10ms 31 Dec 2023 818th eoinfennessy 347 551 9ms 21 Jul 2021 818th micah-weitzman 347 551 10ms 27 Jul 2021 818th mehekj 347 551 10ms 29 Jul 2021 818th No-Jons 347 551 10ms 23 May 2022 822nd Parapet128 346 552 10ms 17 Jan 2019 822nd dillon-duncando 346 552 11ms 19 Dec 2021 822nd nmougino 🇫🇷 346 552 16ms 31 May 2022 822nd Vaibhav0460 346 552 9ms 16 Feb 2024 822nd navier-1 346 552 9ms 15 Sep 2025 822nd kasarino 346 552 9ms 17 days ago 828th aazuspan 345 553 10ms 24 Nov 2021 828th leeyonjae 345 553 9ms 10 Dec 2023 828th jjkochan2 345 553 9ms 17 Jan 2025 831st carsonsyberg 345 554 9ms 9 May 2022 832nd Alexander-Francis 344 555 9ms 10 Jul 2019 832nd itiievskyi 🇺🇦 344 555 9ms 10 Aug 2020 832nd KasperKivimaeki 🇫🇮 344 555 10ms 27 days ago 835th dddthedark 344 556 9ms 21 Jun 2019 835th ejerrard 344 556 9ms 27 Aug 2020 835th robertovers 344 556 12ms 29 Sep 2023 835th imnotAlexKnight 344 556 10ms 10 Jul 2025 835th rahulbyte-js 344 556 9ms 23 days ago 840th amadeusdotpng 342 558 9ms 22 Apr 2023 840th iliao2345 342 558 9ms 8 Jul 2025 842nd lmolteno 342 559 9ms 3 Mar 2021 842nd jmath3912 342 559 9ms 26 Apr 2024 842nd davidludwik2370 342 559 10ms 17 Sep 2025 845th estomagordo 🇳🇱 341 560 9ms 3 Aug 2019 845th gautambp 341 560 17ms 22 Jun 2025 847th kalpanasuresh 340 561 9ms 26 Mar 2021 847th luxdragon 340 561 9ms 11 Oct 2022 847th falinos 340 561 9ms 1 Jan 2023 847th andyxukq 340 561 9ms 4 Feb 2025 851st fl3ur1nestimable 339 563 9ms 28 Mar 2022 852nd NuqieNoila 339 564 9ms 1 Feb 2019 852nd Saaxxx 339 564 9ms 22 Aug 2023 854th MiranDaniel 🇨🇿 338 565 16ms 30 Aug 2023 854th pquline 338 565 9ms 5 Mar 2025 856th artur-py 337 566 9ms 16 Dec 2022 856th skarabb 337 566 9ms 26 Mar 2024 858th CRHillman 336 568 9ms 14 Aug 2018 858th Greguhh 336 568 10ms 22 Oct 2024 860th msrawson 336 569 9ms 13 Aug 2018 860th TJK-S 336 569 10ms 25 Oct 2025 860th mmarkakis 336 569 13ms 16 days ago 860th punoko 336 569 10ms 9 days ago 864th ei14 335 570 10ms 18 Jun 2021 864th amollberg 🇸🇪 335 570 9ms 3 Jan 2022 864th Eulentier161 335 570 17ms 30 Aug 2023 867th Watermelon876 334 572 10ms 27 Nov 2021 867th markbyrne 334 572 9ms 25 Aug 2022 867th joonaspu 334 572 10ms 3 Jun 2023 867th alfonsoalves 334 572 10ms 27 Feb 2024 871st BenAns 333 573 9ms 17 Nov 2018 871st KevinLaux 333 573 10ms 4 Dec 2022 873rd Dejgz 332 575 9ms 11 Sep 2023 873rd gigaprofisi 🇺🇸 332 575 16ms 2 Mar 2025 875th sayloren 332 576 9ms 30 Jul 2025 876th anananlyjlyj 331 577 9ms 2 Jul 2018 876th Sami-ul 331 577 10ms 12 Oct 2021 876th godCoderXYZ 331 577 12ms 5 Dec 2024 879th omgardner 330 578 9ms 1 Mar 2019 879th samual-hain 330 578 9ms 4 Apr 2024 First Prev 801–880 of 1,123 Next Last
