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 241st MeWhenI 🇻🇦 524 296 5ms 2 Oct 2022 242nd yzhs 🇩🇪 523 155 17ms 5 Jun 2022 243rd dmrichwa 🇺🇸 523 183 12ms 30 Dec 2022 244th namelessiw 520 203 449ms 8 Aug 2025 245th janbehrens 🇩🇪 518 249 11ms 2 Jul 2023 246th jared-hughes 517 229 2ms 17 Jul 2022 247th MeWhenI 🇻🇦 514 246 175ms 15 Dec 2022 248th neel11235813 513 146 455ms 15 Jan 2024 249th edsrzf 🇳🇿 512 363 263ms 25 days ago 250th MeWhenI 🇻🇦 512 407 44ms 29 Apr 2025 251st MeWhenI 🇻🇦 511 236 455ms 5 Mar 2022 252nd jeff-at-tamer-dot-codes 🇺🇸 510 159 16ms 23 Aug 2023 253rd HumanoidCPU 506 160 12ms 5 May 2025 254th NewDefectus 🇮🇱 506 234 2ms 27 Nov 2021 255th voytxt 🇨🇿 504 190 10ms 4 Apr 2025 256th guilhem-roy 🇫🇷 500 162 20ms 5 Oct 2022 257th bitsandbeyond 🇳🇱 497 163 12ms 11 Nov 2025 258th MeWhenI 🇻🇦 497 261 5ms 6 Aug 2023 259th lynn 496 248 4ms 9 Nov 2021 260th janlelis 494 133 43ms 4 Nov 2021 261st MeWhenI 🇻🇦 492 262 7ms 3 Jul 2023 262nd MeWhenI 🇻🇦 492 291 8ms 10 Sep 2022 263rd inventshah 485 167 18ms 14 Nov 2022 263rd SB-945 485 167 11ms 11 Mar 2024 265th jared-hughes 480 137 43ms 12 Sep 2022 265th bitsandbeyond 🇳🇱 480 137 37ms 11 Nov 2025 267th HumanoidCPU 480 156 439ms 5 May 2025 268th stefangimmillaro 479 169 11ms 19 Dec 2022 269th CaedenHarper 🇨🇦 478 192 1,002ms 14 Sep 2025 270th MeWhenI 🇻🇦 477 298 495ms 7 Nov 2025 271st MeWhenI 🇻🇦 476 399 32ms 6 Jun 2023 272nd inventshah 474 158 541ms 22 Jan 2024 273rd olleicua 🇺🇸 473 139 48ms 1 Oct 2024 274th blaztoma 🇱🇹 471 172 11ms 4 days ago 275th MeWhenI 🇻🇦 471 202 7ms 16 Aug 2024 276th elgan65536 468 363 423ms 10 Apr 2024 277th NewDefectus 🇮🇱 466 174 18ms 25 Nov 2021 278th Carltoffel 🇩🇪 463 450 49ms 24 Feb 2025 279th MeWhenI 🇻🇦 461 173 1,153ms 9 Nov 2021 280th Argeento 🇵🇱 456 210 10ms 9 Sep 2023 281st tobeannouncd 456 301 160ms 8 Jan 2024 282nd MeWhenI 🇻🇦 456 528 1,696ms 7 Nov 2025 283rd annaproxy 455 178 19ms 8 Jun 2022 284th Natanaelel 🇸🇪 450 146 35ms 5 Sep 2024 285th jared-hughes 450 180 17ms 11 Apr 2022 286th jared-hughes 449 164 33ms 3 Nov 2021 287th o0lit3 🇺🇸 448 147 8ms 7 Jun 2022 288th RockOfStone 446 276 3ms 8 Nov 2021 289th MeWhenI 🇻🇦 445 313 71ms 6 Nov 2023 290th MeWhenI 🇻🇦 443 319 154ms 22 Feb 2023 291st janbehrens 🇩🇪 442 273 495ms 25 Mar 2022 292nd KatieLG 🇬🇧 439 218 10ms 3 Oct 2025 293rd scpchicken 🇵🇼 433 152 22ms 25 Feb 2023 294th Natanaelel 🇸🇪 431 319 162ms 28 Jun 2025 295th snoozingnewt 🇨🇦 429 329 161ms 20 Nov 2025 296th MeWhenI 🇻🇦 428 290 103ms 16 Oct 2022 297th didion0 🇺🇸 424 226 13ms 28 Feb 2022 298th CatsAreFluffy 424 353 104ms 4 Feb 2023 299th MeWhenI 🇻🇦 419 308 458ms 26 Aug 2023 300th Sp3000 🇦🇺 418 194 11ms 20 Nov 2021 301st DialFrost 🇸🇬 417 178 609ms 23 May 2024 302nd janbehrens 🇩🇪 416 230 11ms 8 Jun 2023 303rd MeWhenI 🇻🇦 414 658 28ms 17 Mar 2022 304th tatzyr 🇯🇵 413 159 49ms 29 Mar 2025 305th annaproxy 410 335 171ms 4 Sep 2022 306th RaBa21 🇭🇺 409 198 18ms 1 Aug 2025 307th KatieLG 🇬🇧 406 162 56ms 3 Oct 2025 307th Lv0Sys 🇵🇱 406 162 37ms 13 days ago 309th emgordon154 404 321 8ms 13 May 2025 310th adamnielson42 🇺🇸 401 202 14ms 25 Apr 2023 311th helbling 🇨🇭 401 239 10ms 21 Oct 2024 312th MeWhenI 🇻🇦 399 186 465ms 15 Feb 2023 313th MeWhenI 🇻🇦 398 265 343ms 21 Nov 2021 314th vishwathg 397 204 55ms 27 Sep 2022 315th Waffle3z 396 166 44ms 9 Nov 2021 316th roguh 🇬🇹 396 189 555ms 18 Oct 2024 317th ahmetdemirag 🇨🇾 390 208 10ms 25 Nov 2024 318th MeWhenI 🇻🇦 384 203 302ms 28 Jan 2023 319th coreynash 381 251 11ms 20 Nov 2023 320th snoozingnewt 🇨🇦 378 253 12ms 4 Nov 2025 First Prev 241–320 of 590 Next Last