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 641st joegodbehere 637 254 16ms 30 Oct 2020 642nd roavin 637 257 434ms 5 Jul 2022 643rd uttumuttu 🇫🇮 636 204 26ms 4 Jan 2022 643rd xShadowBlade 636 204 11ms 26 Dec 2024 645th MeWhenI 🇻🇦 636 213 9ms 13 Dec 2023 646th Shanethegamer 🇺🇸 636 215 8ms 13 Nov 2022 647th Babafaba 635 231 524ms 17 Nov 2025 648th Artemis21 🇬🇧 634 255 45ms 3 Jan 2025 648th lelbal 634 255 375ms 28 Aug 2025 650th jwhear 🇺🇸 633 373 150ms 27 Sep 2024 651st Shanethegamer 🇺🇸 633 389 35ms 30 Dec 2022 652nd H3XDaemon 632 165 2ms 32 hours ago 653rd cesarm4 632 256 34ms 9 May 2021 653rd ehulinsky 🇺🇸 632 256 23ms 16 May 2023 655th msbranicky 632 321 11ms 10 Aug 2023 656th lacroixjonathan87 631 174 6ms 10 Aug 2020 657th ccbrown 630 313 267ms 21 Apr 2020 658th prplz 🇦🇺 630 342 32ms 28 Sep 2021 659th bknower 629 257 40ms 29 Jun 2025 660th JRaspass 🇬🇧 628 141 2,324ms 30 Jan 2023 661st postie77 628 261 422ms 9 May 2023 662nd Skepfyr 628 376 162ms 4 Jan 2020 663rd hacker112 🇸🇪 627 207 11ms 22 Jun 2024 663rd daniel-cardone 627 207 12ms 5 Jul 2025 665th Natanaelel 🇸🇪 627 255 3ms 15 Jun 2022 666th evanrittner 627 258 22ms 28 Dec 2021 666th elephantpanda 627 258 46ms 11 Aug 2022 668th Shanethegamer 🇺🇸 626 270 462ms 3 Mar 2022 669th sean-niemann 🇺🇸 625 213 92ms 3 Jun 2022 669th Alex-x90 🇺🇸 625 213 400ms 11 Jul 2023 671st AdrienHache 🇫🇷 625 262 360ms 25 Apr 2024 672nd strattonwhisler 624 208 12ms 29 Jun 2023 673rd Natanaelel 🇸🇪 624 317 479ms 16 days ago 674th Starwort 🇬🇧 622 260 59ms 28 May 2019 674th cubed-guy 622 260 25ms 2 Oct 2021 676th ShiraJoseph 🇺🇸 621 209 12ms 12 Feb 2023 677th CaedenHarper 🇨🇦 620 140 48ms 7 Sep 2025 678th tdashroy 620 264 439ms 21 Nov 2021 679th lynn 619 135 36ms 12 Apr 2021 680th jmerle 🇳🇱 619 210 669ms 19 Jun 2023 681st Kibble 618 210 13ms 11 Jul 2020 681st 52525rr 618 210 12ms 20 Oct 2025 683rd targrik 618 319 278ms 28 Jul 2025 684th Anonymousellama21 617 98 50ms 12 Apr 2024 685th nomennescio 617 169 2ms 9 Dec 2024 686th Pimentero 🇷🇺 617 178 5ms 9 Nov 2022 687th jtaxen 617 262 455ms 8 May 2024 688th kirjavascript 616 383 168ms 12 Oct 2025 689th Natanaelel 🇸🇪 615 78 129ms 18 Feb 2025 690th betaveros 615 263 327ms 2 Jan 2023 691st inventshah 613 217 513ms 2 Apr 2025 692nd perlebach 🇨🇿 612 127 6ms 16 Aug 2021 693rd MeWhenI 🇻🇦 612 205 139ms 3 Aug 2024 694th thisishowmymindworks 🇳🇴 612 212 28ms 14 Oct 2020 695th snoozingnewt 🇨🇦 612 403 121ms 16 days ago 696th FlyingPenguin223 611 248 6ms 13 Oct 2023 697th AZTECCO 610 171 2ms 21 Sep 2025 697th iczelia 🇩🇪 610 171 2ms 26 Sep 2025 699th vezzick 610 265 227ms 12 Mar 2021 700th Ripick 610 266 357ms 27 May 2025 701st NatNgs 609 213 12ms 7 Jan 2020 702nd aliakseikalosha 609 269 353ms 21 Nov 2021 702nd janbehrens 🇩🇪 609 269 386ms 17 Apr 2025 704th relet 608 266 1,111ms 10 Aug 2018 704th cbondurant 608 266 47ms 1 Oct 2021 706th llwwns 607 143 54ms 1 May 2023 707th arctouch-cristiannevianna 607 270 459ms 16 Nov 2023 708th ImpressedByRocks 606 267 34ms 24 Dec 2024 709th ovs-code 🇩🇪 604 296 325ms 7 Jul 2024 710th realslacker 603 172 317ms 6 Jun 2022 711th jared-hughes 603 173 2ms 1 Nov 2022 712th pandapawskat 603 182 5ms 9 Sep 2021 712th jb-lopez 🇺🇸 603 182 5ms 8 Nov 2021 714th CatsAreFluffy 603 268 18ms 3 Jan 2023 715th janbehrens 🇩🇪 602 221 82ms 20 Nov 2022 716th igmcdowell 601 216 16ms 27 Jan 2022 716th janbehrens 🇩🇪 601 216 12ms 17 Jun 2023 718th Phanabani 🇺🇸 601 269 337ms 22 Oct 2020 718th msbranicky 601 269 28ms 24 Jul 2023 718th te-chnical 601 269 17ms 23 Nov 2025 First Prev 641–720 of 1,409 Next Last
