The Calendar hole will go live in approximately 11 days. Why not try and solve it ahead of time?
12 Days of Christmas in all languages in bytes. 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 Bytes Time Submitted 800th kimbo 🇺🇸 876 527 262ms 11 Jan 2023 802nd DialFrost 🇸🇬 875 445 48ms 1 Jun 2024 803rd thantos 875 465 9ms 21 Feb 2018 803rd m1el 875 465 8ms 28 Aug 2020 803rd CaedenHarper 🇨🇦 875 465 8ms 6 Sep 2025 806th thomas-saigre 875 475 402ms 26 Nov 2024 807th nwellnhof 🇩🇪 875 485 2ms 9 Oct 2020 807th inventshah 875 485 2ms 13 Jul 2023 809th neel11235813 875 510 82ms 16 Mar 2024 809th snoozingnewt 🇨🇦 875 510 85ms 30 Apr 2024 809th dokutan 875 510 85ms 23 Sep 2024 812th scottpenn 875 528 120ms 4 Jan 2020 813th northvandrew 874 457 246ms 8 Jun 2020 814th alphafalfa 874 464 2ms 16 Apr 2025 815th KrausRaus 🇺🇸 874 465 4ms 18 Jul 2025 816th Giga-Bowser 874 466 9ms 4 Jan 2022 816th draem 874 466 9ms 31 Jul 2024 816th c-py 874 466 9ms 1 Nov 2025 816th tomh1012 874 466 8ms 17 days ago 820th Gymhgy 874 472 10ms 23 Apr 2019 820th rak1507 🇬🇧 874 472 9ms 15 Oct 2020 820th awnion 874 472 9ms 26 Dec 2020 820th harrymwilkins 🇬🇧 874 472 10ms 19 Jul 2021 820th OpesMentis 874 472 9ms 29 Oct 2021 820th TimHuisman1703 874 472 9ms 7 Jan 2022 820th Hakiwen 874 472 11ms 21 Jan 2022 820th jm600 874 472 9ms 19 Apr 2022 820th twocatsinatrenchcoat 874 472 9ms 4 May 2022 820th PogLop 🇨🇿 874 472 13ms 15 Oct 2022 820th aksyristos 874 472 9ms 9 Jan 2023 820th davecame 874 472 9ms 25 Oct 2023 820th sciencejiho 874 472 10ms 24 Apr 2024 820th pickerj 874 472 9ms 22 Aug 2024 820th voidgloom 874 472 9ms 22 Oct 2024 820th ItsMeNoobieboy 874 472 9ms 1 Dec 2024 820th dpasionek 874 472 9ms 6 Dec 2024 820th TheZwierzLF 🇵🇱 874 472 13ms 8 hours ago 838th annaproxy 874 485 369ms 5 May 2022 839th kylelemons 874 528 275ms 16 Apr 2020 840th snoozingnewt 🇨🇦 874 543 30ms 15 Oct 2025 841st SirBogman 🇺🇸 874 691 12ms 23 Nov 2022 842nd dokutan 873 482 113ms 17 Oct 2024 843rd MostParsingVex 873 486 1ms 28 Dec 2024 844th Echriser 873 510 270ms 14 Nov 2022 845th eiburns 873 523 351ms 13 Nov 2020 845th Vaekor 873 523 417ms 9 Jul 2023 845th coltraloz 🇪🇸 873 523 388ms 22 Apr 2024 845th snoozingnewt 🇨🇦 873 523 479ms 3 Oct 2025 849th 0xjac 🇨🇭 873 529 262ms 15 Jun 2020 849th klixel 🇨🇦 873 529 152ms 4 Jun 2023 849th CaedenHarper 🇨🇦 873 529 272ms 20 Nov 2025 852nd sagarv26 872 458 249ms 11 Jun 2021 853rd Natanaelel 🇸🇪 872 467 9ms 11 Sep 2021 853rd SirBogman 🇺🇸 872 467 9ms 10 Dec 2021 853rd GeorgeStechman 🇬🇧 872 467 9ms 20 Sep 2022 853rd DayDun 🇸🇪 872 467 9ms 19 Jan 2023 853rd strattonwhisler 872 467 9ms 27 Mar 2025 853rd Andrey-Plotnikov 872 467 8ms 27 Jun 2025 859th guliyevemil1 🇦🇿 872 473 9ms 18 Apr 2020 859th hjcafaroUC 872 473 10ms 28 Jul 2020 859th Foxx-l 872 473 9ms 30 Mar 2023 859th tobyLovick 872 473 10ms 6 Dec 2023 859th m42km 872 473 9ms 4 Feb 2024 859th chenmingxiang110 872 473 10ms 19 Feb 2024 859th abhishekg999 872 473 10ms 21 Sep 2024 859th fuzzylojik-golf 🇺🇸 872 473 9ms 13 Jun 2025 859th wuduculfre 872 473 9ms 27 Jul 2025 859th tomh1012 872 473 10ms 17 days ago 859th hippalectryon-0 872 473 9ms 14 days ago 870th janbehrens 🇩🇪 872 486 379ms 21 Nov 2021 870th SubsTheTechnomancer 872 486 380ms 28 Feb 2023 870th snoozingnewt 🇨🇦 872 486 372ms 23 Sep 2023 870th neel11235813 872 486 394ms 26 Mar 2024 870th Yax42 🇫🇷 872 486 438ms 26 days ago 875th GolfingSuccess 🇬🇷 872 515 65ms 25 Dec 2023 876th menglishca 🇨🇦 872 524 417ms 6 Aug 2021 876th ravnskjaer 🇩🇰 872 524 324ms 5 days ago 878th SirBogman 🇺🇸 871 414 158ms 5 Oct 2020 879th retrohun 871 425 2ms 25 Sep 2022 880th Michaelncallahan 871 447 41ms 17 Apr 2020 First Prev 801–880 of 3,962 Next Last
