The Calendar hole will go live in approximately 6 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 881st gifti258 531 241 130ms 15 Sep 2023 882nd h3ra993huskp 🇯🇵 531 335 486ms 25 days ago 883rd hrrs01 530 164 40ms 26 Sep 2018 884th MichaelMBradley 🇨🇦 529 245 11ms 18 Mar 2022 885th DarkTemplar5 528 306 35ms 25 Feb 2020 885th knutae 🇳🇴 528 306 20ms 13 Nov 2021 887th SpareManiKatti 527 246 12ms 9 Sep 2021 888th LeeCamp 527 307 285ms 19 Feb 2022 888th namelessiw 527 307 16ms 15 Jan 2024 890th MeWhenI 🇻🇦 526 247 129ms 13 Dec 2022 891st Shanethegamer 🇺🇸 526 309 350ms 6 May 2023 892nd daedals 525 148 6ms 4 Jul 2019 893rd inverseLorentz 🇦🇺 525 308 18ms 14 May 2024 893rd AtengChen 525 308 185ms 7 Sep 2024 893rd AnnoyedArt1256 525 308 24ms 7 Jan 2025 896th aliakseikalosha 525 339 448ms 14 Jun 2020 897th JoeBigToe 524 198 354ms 8 Jun 2020 898th Flying-Toast 524 199 2ms 17 Apr 2024 899th johnathanleung18 523 309 436ms 3 Oct 2021 899th midnattssol 🇸🇪 523 309 24ms 19 Oct 2023 901st yevgeniyredko 523 313 399ms 3 Oct 2023 901st Skellybob56 523 313 391ms 12 Nov 2025 903rd cbrt-x 523 340 431ms 14 Sep 2023 904th andre-lameirinhas 🇵🇹 520 311 308ms 22 Jun 2020 904th jacekwladzinski 520 311 15ms 8 Oct 2025 906th bac0id 520 315 370ms 20 Sep 2023 907th DubiousDoggo 520 631 1,066ms 2 Dec 2021 908th Shanethegamer 🇺🇸 519 415 25ms 31 Oct 2021 909th snoozingnewt 🇨🇦 518 212 7ms 20 Oct 2025 910th GeorgePerreault 518 312 16ms 6 Jun 2020 911th ILMTitan 518 316 432ms 21 Nov 2021 911th jwalaszek 518 316 389ms 21 Nov 2021 913th neel11235813 517 202 2ms 27 Mar 2024 914th edre 517 313 32ms 7 Jun 2018 914th keelimeguy 🇺🇸 517 313 15ms 17 May 2025 916th ovs-code 🇩🇪 516 279 4ms 22 Jul 2023 917th Tonic-Box 515 213 6ms 5 Nov 2020 918th giacomogallina 515 314 505ms 4 Jan 2020 919th weliveinhell 🇭🇹 515 458 202ms 4 Oct 2023 920th inverseLorentz 🇦🇺 513 253 11ms 12 Jun 2022 920th quirked-up 513 253 11ms 30 Aug 2023 920th MyXoToD 🇩🇪 513 253 10ms 8 May 2025 923rd RandGuy 513 315 15ms 9 Nov 2022 923rd hiichbindermax 513 315 16ms 3 Sep 2024 923rd Alex-Huggett 🇬🇧 513 315 20ms 14 Sep 2025 926th hjcafaroUC 512 316 320ms 9 Aug 2020 927th jwonagel 512 320 362ms 2 Jun 2025 928th kkoenig 512 385 381ms 23 Jan 2024 928th CaedenHarper 🇨🇦 512 385 290ms 17 Nov 2025 930th meenie 511 170 38ms 24 Jan 2021 931st karhuthebear 510 317 303ms 11 May 2022 931st CutSandstone 510 317 26ms 19 Jul 2024 931st qpwoeirut 510 317 16ms 16 Jul 2025 934th weliveinhell 🇭🇹 510 321 384ms 18 Jul 2024 935th biinari 508 171 40ms 13 Aug 2020 936th rollershutter 508 318 15ms 11 Oct 2022 937th fisherthomas14 508 350 561ms 27 May 2021 938th dokutan 507 249 2,319ms 7 Apr 2024 939th florton 507 256 11ms 6 Jan 2022 939th aaronze 🇦🇺 507 256 11ms 12 Sep 2023 941st 40fied4t 507 319 32ms 6 May 2025 942nd anastos 507 390 192ms 26 Jul 2018 943rd Yewzir 🇧🇪 506 263 425ms 9 Mar 2024 944th tomh1012 506 324 392ms 21 Nov 2021 945th Nuottajarvi 505 257 12ms 8 Oct 2018 945th a6166231 🇨🇳 505 257 11ms 28 Apr 2025 947th ieeemma 505 320 23ms 1 Feb 2020 948th roupiq 🇵🇱 504 264 421ms 11 Jun 2024 949th HumanoidCPU 504 291 730ms 31 Mar 2025 950th JunkIce 504 321 419ms 3 Dec 2024 951st tdkkdt 🇷🇺 504 325 383ms 21 Nov 2021 952nd sparksis 🇨🇦 503 354 441ms 31 Jan 2025 953rd MeWhenI 🇻🇦 502 255 114ms 6 Nov 2023 954th CatsAreFluffy 502 265 64ms 18 Dec 2023 955th aDwarfNamedUrist 502 319 5ms 12 Dec 2022 956th MeWhenI 🇻🇦 502 419 328ms 30 Aug 2024 957th acollett89 501 259 12ms 4 Aug 2025 958th Ernest1338 501 471 196ms 23 Feb 2025 959th Jacob385 500 356 572ms 28 Oct 2025 960th lahell 499 208 353ms 8 Jun 2020 First Prev 881–960 of 1,410 Next Last