The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
brainfuck in all languages 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 481st inventshah 608 217 513ms 2 Apr 2025 482nd snoozingnewt 🇨🇦 607 403 121ms 13 days ago 483rd olleicua 🇺🇸 605 100 39ms 15 Jan 2024 484th lynn 605 135 36ms 12 Apr 2021 485th AZTECCO 605 171 2ms 21 Sep 2025 485th iczelia 🇩🇪 605 171 2ms 26 Sep 2025 487th cafehaine 🇫🇷 605 211 3ms 1 Dec 2021 488th aliakseikalosha 605 269 353ms 21 Nov 2021 488th janbehrens 🇩🇪 605 269 386ms 17 Apr 2025 490th ovs-code 🇩🇪 604 140 2,125ms 15 May 2024 491st UpwardProcess 603 161 5ms 31 Dec 2018 492nd FlyingPenguin223 603 248 6ms 13 Oct 2023 493rd Ripick 603 266 357ms 27 May 2025 494th arctouch-cristiannevianna 603 270 459ms 16 Nov 2023 495th QuincyNash 🇺🇸 602 177 11ms 19 days ago 496th SwordF-Official 602 212 8ms 9 Sep 2025 497th NerdyMcNerd42 600 170 285ms 26 Oct 2022 498th atenfyr 599 213 3ms 21 Jun 2020 498th Shanethegamer 🇺🇸 599 213 5ms 5 Oct 2024 498th Blendi-Goose 599 213 3ms 5 Oct 2025 501st jared-hughes 598 173 2ms 1 Nov 2022 502nd PatrickStephansen 🇿🇦 598 178 12ms 5 Mar 2021 502nd iliazeus 598 178 12ms 10 Mar 2023 502nd tayloia 🇬🇧 598 178 13ms 15 May 2023 502nd LukeBridges 🇬🇧 598 178 11ms 14 Aug 2024 506th janbehrens 🇩🇪 597 221 82ms 20 Nov 2022 507th ovs-code 🇩🇪 597 296 325ms 7 Jul 2024 508th kimbo 🇺🇸 597 328 337ms 16 Dec 2022 509th jakobkordez 🇸🇮 596 171 13ms 7 Nov 2022 509th 4atj 596 171 20ms 30 Jun 2025 511th TomatOid 595 174 2ms 26 May 2021 511th PurkkaKoodari 🇫🇮 595 174 4ms 23 Nov 2024 513th nwellnhof 🇩🇪 593 102 51ms 2 Jan 2022 514th liamLatour 593 172 15ms 21 Jul 2024 515th stuarthighley 593 330 292ms 25 Apr 2020 516th Szum123321 🇵🇱 593 396 193ms 20 Mar 2024 517th rniii 592 180 12ms 27 days ago 518th MeWhenI 🇻🇦 592 253 15ms 13 Oct 2023 519th TimCurwick 🇺🇸 590 147 370ms 6 May 2021 519th KevinMarquette 🇺🇸 590 147 378ms 27 Apr 2023 521st MeWhenI 🇻🇦 590 272 379ms 27 Jul 2024 522nd HumanoidCPU 589 173 19ms 31 Mar 2025 523rd not-optikk 🇺🇸 588 217 3ms 14 Dec 2022 524th ryyyn 🇺🇸 586 174 21ms 24 Apr 2025 525th urojony 🇵🇱 585 177 2ms 2 Jan 2021 526th MrPsyware 583 336 290ms 16 Apr 2020 527th tianshuo 582 183 13ms 19 Jun 2019 527th Maznek 582 183 12ms 6 Feb 2025 529th UladzimirSukharukau 581 104 52ms 15 Sep 2021 530th primo-ppcg 🇹🇭 581 164 102ms 17 Oct 2023 531st lynn 581 245 156ms 22 May 2021 532nd qrakhen 581 280 352ms 17 Nov 2025 533rd syntax-rules 580 253 64ms 4 May 2023 534th wiebecommajonas 580 405 185ms 31 Oct 2021 535th schachmattmatt 579 176 398ms 29 Sep 2021 536th HumanoidCPU 579 184 11ms 1 Apr 2025 537th user189032 579 339 199ms 29 May 2019 538th Mandrzejy 🇵🇱 578 179 2ms 14 Apr 2024 539th edsrzf 🇳🇿 577 272 115ms 16 Jul 2025 540th weliveinhell 🇭🇹 577 339 377ms 10 Aug 2024 541st lynn 576 87 6ms 14 Nov 2021 542nd zacjl 576 199 55ms 4 Nov 2025 543rd antimon2 🇯🇵 575 147 2,460ms 12 Sep 2022 544th KasperKivimaeki 🇫🇮 573 178 19ms 9 days ago 545th biocommando 🇫🇮 573 186 20ms 27 May 2023 545th NickTheEASDude 🇺🇸 573 186 11ms 26 Jan 2024 547th MeWhenI 🇻🇦 571 231 80ms 29 Nov 2022 548th ovs-code 🇩🇪 570 106 44ms 23 Jul 2024 549th lynn 570 179 20ms 17 May 2022 549th bricknellj 570 179 24ms 28 Oct 2022 549th Seek64 🇩🇪 570 179 20ms 19 Aug 2024 552nd pandapawskat 570 187 12ms 16 Sep 2021 552nd xyangst 570 187 14ms 28 Sep 2024 554th GrayJoKing 🇦🇺 568 127 5ms 22 Jun 2025 555th janbehrens 🇩🇪 568 311 510ms 24 Apr 2023 555th DialFrost 🇸🇬 568 311 593ms 18 Nov 2025 557th ovs-code 🇩🇪 567 164 515ms 15 May 2024 557th Steffan153 🇫🇮 567 164 508ms 1 Jun 2024 559th fitzdotlol 🇺🇸 567 188 11ms 28 Mar 2022 559th wh3n3v3r 🇨🇿 567 188 12ms 8 Nov 2024 First Prev 481–560 of 1,399 Next Last