The Calendar hole will go live in approximately 10 days. Why not try and solve it ahead of time?
brainfuck 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 400th MathisBullinger 754 172 11ms 28 Nov 2021 400th Salutations45 754 172 14ms 18 Nov 2024 403rd artyom-razinov 754 318 168ms 13 Feb 2020 404th m42km 753 195 498ms 3 Feb 2024 405th MeWhenI 🇻🇦 752 168 1,868ms 15 Feb 2023 406th snyderek 🇺🇸 752 177 74ms 23 Nov 2024 407th xorraxrax 752 215 21ms 31 Oct 2019 407th dzshn 752 215 44ms 7 Feb 2023 407th yokasuretsu 752 215 21ms 7 Jan 2025 410th elgan65536 752 314 163ms 28 Mar 2024 411th atenfyr 751 213 3ms 21 Jun 2020 411th Shanethegamer 🇺🇸 751 213 5ms 5 Oct 2024 411th Blendi-Goose 751 213 3ms 5 Oct 2025 414th user189032 750 173 12ms 29 May 2019 414th daniel-pedersen 🇸🇪 750 173 12ms 6 Mar 2022 414th kirjavascript 750 173 12ms 12 Oct 2025 417th SirBogman 🇺🇸 748 104 6ms 7 Jun 2024 418th SirBogman 🇺🇸 748 116 47ms 26 Dec 2023 419th lrustand 748 216 22ms 1 Feb 2018 420th alexkunin 746 174 14ms 11 Jul 2019 420th two-bad 🇬🇧 746 174 12ms 23 Feb 2024 420th helbling 🇨🇭 746 174 12ms 24 Apr 2024 423rd KatieLG 🇬🇧 745 197 432ms 23 Aug 2024 424th martion2007 745 217 21ms 22 Sep 2024 425th MeWhenI 🇻🇦 745 220 424ms 19 Jun 2025 425th Yax42 🇫🇷 745 220 390ms 3 Aug 2025 427th Shanethegamer 🇺🇸 744 182 12ms 28 Sep 2024 428th MeWhenI 🇻🇦 744 239 495ms 7 Nov 2025 429th lynn 744 266 383ms 19 Sep 2021 430th MeWhenI 🇻🇦 743 246 3,259ms 2 Dec 2024 431st dzhang314 742 218 22ms 15 Aug 2019 432nd mousetail 🇳🇱 742 318 161ms 14 Mar 2024 433rd kcinnu 🇱🇹 741 175 12ms 2 May 2023 433rd CaedenHarper 🇨🇦 741 175 11ms 7 Oct 2025 435th dloscutoff 739 171 1,353ms 27 Nov 2018 436th Argeento 🇵🇱 738 170 142ms 3 Aug 2024 436th emgordon154 738 170 136ms 14 May 2025 438th albanian-laundromat 738 199 491ms 21 Aug 2025 438th dokutan 738 199 540ms 8 Sep 2025 440th Mikey-Beep 🇬🇧 738 219 21ms 5 Sep 2024 441st namelessiw 738 222 425ms 9 Apr 2025 442nd not-optikk 🇺🇸 737 217 3ms 14 Dec 2022 443rd proton 🇩🇪 736 118 49ms 9 Jun 2020 443rd anter69 🇭🇺 736 118 62ms 19 Mar 2024 445th dim-an 735 220 32ms 9 Dec 2020 445th PaulMWeiser 735 220 24ms 26 Feb 2023 445th commandblockguy 🇺🇸 735 220 23ms 12 Apr 2023 445th ahmetdemirag 🇨🇾 735 220 381ms 25 Apr 2025 449th ovs-code 🇩🇪 735 230 482ms 27 Jul 2024 450th QuincyNash 🇺🇸 733 177 11ms 22 days ago 451st jhu04 732 221 22ms 18 Jan 2024 451st snydej 732 221 239ms 28 Nov 2024 453rd edsrzf 🇳🇿 732 225 129ms 23 Mar 2025 454th iliazeus 729 178 12ms 10 Mar 2023 454th tayloia 🇬🇧 729 178 13ms 15 May 2023 456th CatsAreFluffy 728 83 50ms 30 Jan 2023 457th daedals 728 222 23ms 12 Jun 2019 457th PyPylia 🇦🇺 728 222 21ms 24 May 2021 457th diddily 728 222 22ms 18 Nov 2022 457th fkantelberg 728 222 23ms 17 Jul 2023 461st GrayJoKing 🇦🇺 728 223 366ms 8 May 2022 462nd hughsimpson 727 107 22ms 2 Feb 2018 463rd dokutan 727 279 9ms 21 Feb 2025 464th edsrzf 🇳🇿 726 475 160ms 7 Mar 2025 465th Lv0Sys 🇵🇱 725 179 12ms 5 hours ago 466th pascscha 725 223 407ms 13 May 2022 466th MaxElf999 725 223 63ms 23 Sep 2022 466th Flekay 🇩🇪 725 223 22ms 9 Aug 2025 469th HumanoidCPU 723 332 111ms 29 Mar 2025 470th SirBogman 🇺🇸 723 435 83ms 6 Nov 2022 471st ian-h-chamberlain 🇺🇸 722 327 166ms 26 Jul 2022 472nd jakobwitte 721 180 14ms 12 Mar 2018 472nd rniii 721 180 12ms 21 Nov 2025 474th AlephSquirrel 721 235 113ms 26 Oct 2024 475th fuzzylojik-golf 🇺🇸 720 204 533ms 31 May 2025 476th MostParsingVex 719 185 510ms 2 Jan 2025 477th retrohun 719 190 7ms 26 Aug 2025 478th mathisfun271 719 225 19ms 12 Feb 2024 478th edsrzf 🇳🇿 719 225 20ms 22 Jan 2025 478th itljan30 719 225 21ms 26 Jan 2025 First Prev 401–480 of 1,409 Next Last