The Calendar hole will go live in approximately 12 days. Why not try and solve it ahead of time?
Musical Chords 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 321st quirked-up 372 257 10ms 31 Aug 2023 322nd MeWhenI 🇻🇦 371 366 1,356ms 4 Nov 2021 323rd uttumuttu 🇫🇮 370 259 11ms 9 Jan 2022 324th CatsAreFluffy 366 324 2ms 4 Feb 2023 325th InigoK 🇺🇸 363 223 27ms 23 Sep 2025 326th janbehrens 🇩🇪 362 205 558ms 14 Nov 2021 327th RYNO8 362 224 17ms 10 Nov 2021 328th lynn 360 329 2ms 8 Feb 2022 329th janbehrens 🇩🇪 359 226 11ms 17 Jun 2023 330th stefangimmillaro 359 359 5ms 2 Jul 2023 331st janbehrens 🇩🇪 353 402 487ms 14 Nov 2021 332nd janbehrens 🇩🇪 349 302 372ms 21 Nov 2021 333rd KatieLG 🇬🇧 348 783 12ms 19 May 2024 334th Lv0Sys 🇵🇱 346 234 18ms 13 days ago 335th wh3n3v3r 🇨🇿 345 235 13ms 14 Nov 2024 336th Pyroan 342 237 19ms 15 Mar 2025 337th ShiraJoseph 🇺🇸 342 280 11ms 21 Jul 2023 338th MeWhenI 🇻🇦 342 313 30ms 21 Jun 2022 339th DialFrost 🇸🇬 336 241 19ms 20 May 2024 340th roguh 🇬🇹 336 314 428ms 18 Oct 2024 341st StefanHabel 🇨🇦 335 242 18ms 29 Aug 2023 342nd TFeld00 🇩🇰 333 243 141ms 3 Oct 2022 343rd DialFrost 🇸🇬 331 226 711ms 24 May 2024 344th snoozingnewt 🇨🇦 327 387 218ms 11 Sep 2025 345th MeWhenI 🇻🇦 325 296 345ms 12 Nov 2022 346th FlorianCassayre 🇫🇷 323 251 12ms 5 Aug 2025 347th prplz 🇦🇺 322 252 18ms 22 Oct 2023 347th davecame 322 252 13ms 15 Oct 2025 347th Babafaba 322 252 21ms 29 Oct 2025 350th ericlangedijk 🇸🇮 322 328 379ms 20 Mar 2022 351st msbranicky 319 584 282ms 7 Sep 2023 352nd MeWhenI 🇻🇦 317 308 26ms 20 Oct 2024 353rd MichalMarsalek 🇨🇿 315 257 10ms 5 Nov 2021 353rd robin-scragg 315 257 12ms 3 Oct 2025 353rd FortuiteMan 🇫🇷 315 257 18ms 18 days ago 356th janbehrens 🇩🇪 314 477 2,668ms 20 Nov 2022 357th commandblockguy 🇺🇸 311 241 1,091ms 1 Sep 2025 358th heanyang1 309 383 2ms 28 May 2025 359th jakobkordez 🇸🇮 307 264 17ms 8 Nov 2022 360th MeWhenI 🇻🇦 307 299 813ms 15 Sep 2025 361st heanyang1 301 451 1,432ms 23 May 2025 362nd Mabeloid 🇳🇴 300 270 12ms 10 Jun 2025 363rd BambooleanLogic 🇸🇪 300 319 11ms 13 Jul 2023 364th janbehrens 🇩🇪 298 458 1,117ms 14 Nov 2021 365th Babafaba 297 252 390ms 29 Oct 2025 366th janbehrens 🇩🇪 295 223 4ms 14 Nov 2021 367th MeWhenI 🇻🇦 294 269 147ms 3 Aug 2024 368th JOrE20 🇺🇸 293 277 13ms 15 days ago 369th annaproxy 293 360 361ms 25 Apr 2022 370th neel11235813 292 413 483ms 1 Apr 2024 370th snoozingnewt 🇨🇦 292 413 511ms 29 Sep 2025 372nd blaztoma 🇱🇹 291 226 56ms 19 Oct 2025 373rd yuchuehw 290 279 19ms 23 Jan 2024 374th jerrandolph 290 641 264ms 1 Oct 2025 375th ndren 290 15,791 101ms 3 Jul 2025 376th amollberg 🇸🇪 288 281 11ms 15 Jan 2022 377th KatieLG 🇬🇧 286 279 917ms 29 Aug 2024 378th MeWhenI 🇻🇦 285 231 6ms 16 Apr 2023 379th jacklynnepenick 284 285 12ms 22 Feb 2022 379th OllieBoyne 🇬🇧 284 285 13ms 21 Aug 2022 381st acer-xq 284 371 408ms 26 Jul 2024 382nd h3ra993huskp 🇯🇵 284 501 549ms 19 days ago 383rd mbittner20 283 286 12ms 8 Jul 2024 384th neel11235813 283 419 2ms 1 Apr 2024 385th vroup 🇩🇰 281 341 11ms 2 Oct 2022 386th neel11235813 278 380 378ms 1 Apr 2024 387th m-tkach 🇺🇦 277 292 31ms 10 Jan 2022 388th jeff-at-tamer-dot-codes 🇺🇸 277 436 231ms 27 Aug 2023 389th snoozingnewt 🇨🇦 276 429 2ms 9 Oct 2025 390th jeff-at-tamer-dot-codes 🇺🇸 275 384 373ms 25 Aug 2023 390th snoozingnewt 🇨🇦 275 384 446ms 14 Jan 2025 392nd CaedenHarper 🇨🇦 275 677 267ms 3 Nov 2025 393rd scpchicken 🇵🇼 274 296 57ms 20 Feb 2024 394th loganmacdougall 🇨🇦 273 520 493ms 7 Nov 2021 395th nullie 272 298 14ms 10 Jun 2022 396th CaedenHarper 🇨🇦 272 523 663ms 7 Oct 2025 397th jeff-at-tamer-dot-codes 🇺🇸 271 438 2ms 26 Aug 2023 398th targrik 267 483 5ms 29 Jan 2025 399th knutae 🇳🇴 266 305 12ms 13 Nov 2021 400th heanyang1 266 396 419ms 23 May 2025 First Prev 321–400 of 590 Next Last