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 881st Anonymousellama21 442 368 397ms 27 Apr 2023 882nd commandblockguy 🇺🇸 441 211 493ms 1 Sep 2025 883rd Natanaelel 🇸🇪 440 114 5ms 14 Oct 2021 884th HumanoidCPU 440 235 2ms 8 days ago 885th MeWhenI 🇻🇦 439 205 139ms 3 Aug 2024 886th MeWhenI 🇻🇦 439 221 75ms 28 May 2023 887th JoeBigToe 438 198 354ms 8 Jun 2020 888th Andrey-Plotnikov 438 243 16ms 23 Sep 2025 889th bac0id 437 404 609ms 26 Sep 2023 890th ovs-code 🇩🇪 436 115 6ms 23 Jul 2024 891st Indivicivet 436 234 403ms 23 Mar 2021 891st alexeldridge 436 234 20ms 12 Aug 2024 893rd MichaelMBradley 🇨🇦 435 245 11ms 18 Mar 2022 894th MeWhenI 🇻🇦 434 249 280ms 10 Nov 2021 895th connorslade 434 541 221ms 12 May 2022 896th CatsAreFluffy 433 239 2ms 18 Dec 2023 897th SpareManiKatti 433 246 12ms 9 Sep 2021 898th jhu04 433 408 569ms 18 Jan 2024 899th mcreenan 432 116 6ms 6 Feb 2018 899th iczelia 🇩🇪 432 116 5ms 22 Sep 2025 901st CaedenHarper 🇨🇦 432 140 48ms 7 Sep 2025 902nd Sticky-Bits 432 236 22ms 26 Apr 2019 902nd Code-Coder-coder 432 236 29ms 25 days ago 904th pyrolitic 🇮🇪 431 240 2ms 10 May 2022 905th muztanger 431 378 395ms 21 Nov 2021 906th dokutan 429 197 3,071ms 7 Apr 2024 907th mathb0y512 427 239 556ms 20 Aug 2024 908th IlkkaTakala 427 309 89ms 30 Apr 2024 909th szymex73 🇵🇱 426 243 2ms 2 Feb 2024 910th trinityy-7 424 244 2ms 7 Aug 2025 911th TetraPengwin 424 301 4ms 15 Dec 2021 912th Soyo-Wind 424 384 395ms 16 Jul 2025 913th llwwns 423 143 54ms 1 May 2023 914th oceko 423 312 64ms 19 Feb 2024 915th bb00 422 245 2ms 20 Jan 2024 915th Yewzir 🇧🇪 422 245 2ms 9 Feb 2024 917th JRaspass 🇬🇧 421 141 2,324ms 30 Jan 2023 918th inverseLorentz 🇦🇺 421 253 11ms 12 Jun 2022 918th quirked-up 421 253 11ms 30 Aug 2023 918th MyXoToD 🇩🇪 421 253 10ms 8 May 2025 921st dokutan 421 270 144ms 1 Sep 2024 922nd Yewzir 🇧🇪 421 363 101ms 4 Jan 2025 923rd guilhem-roy 🇫🇷 420 243 331ms 27 Jul 2023 924th Maltaran 🇵🇱 420 314 428ms 14 Feb 2025 925th strout 420 468 191ms 15 Aug 2022 926th sjrct 419 247 2ms 9 Aug 2024 927th fgrosshans 🇫🇷 418 244 24ms 18 Jul 2022 928th HumanoidCPU 418 423 510ms 8 Nov 2025 929th lahell 417 208 353ms 8 Jun 2020 930th za3k 416 245 23ms 12 Oct 2022 930th willdaspit 416 245 22ms 5 Aug 2023 932nd florton 416 256 11ms 6 Jan 2022 932nd aaronze 🇦🇺 416 256 11ms 12 Sep 2023 934th Shanethegamer 🇺🇸 416 275 1,175ms 6 May 2023 935th MeWhenI 🇻🇦 415 227 1,162ms 29 Aug 2025 936th ravnskjaer 🇩🇰 415 426 357ms 3 days ago 937th CedricGebistorf 414 246 21ms 5 Mar 2022 937th PogLop 🇨🇿 414 246 12ms 22 Nov 2022 937th dirckvdende 414 246 22ms 12 Jul 2025 940th Nuottajarvi 414 257 12ms 8 Oct 2018 941st guilhem-roy 🇫🇷 412 251 2ms 29 Jun 2023 942nd bac0id 412 320 524ms 23 Feb 2024 943rd ConorOBrien-Foxx 411 147 48ms 10 Apr 2018 943rd Waffle3z 411 147 50ms 12 Oct 2020 945th israem 411 211 326ms 17 Apr 2024 946th c0d3-4-F00d 🇩🇪 411 252 2ms 7 Jan 2022 947th acollett89 411 259 12ms 4 Aug 2025 948th Ripick 410 322 80ms 3 Nov 2022 949th msrawson 409 249 21ms 4 Sep 2018 950th lemogne 409 253 2ms 1 Jun 2022 951st asheeri 408 250 32ms 15 Aug 2021 951st kmaork 🇮🇱 408 250 233ms 17 Aug 2023 951st alfonsoalves 408 250 28ms 21 Jul 2024 951st fredrik-bakke 🇳🇴 408 250 22ms 17 Mar 2025 955th Maximizer02 408 399 389ms 16 Apr 2025 956th KatieLG 🇬🇧 408 409 162ms 26 days ago 957th ovs-code 🇩🇪 406 235 93ms 12 Sep 2024 958th ZoeyKD 406 251 339ms 14 May 2023 958th janbehrens 🇩🇪 406 251 20ms 24 Nov 2024 960th amishtal 405 252 20ms 1 Dec 2019 First Prev 881–960 of 1,399 Next Last