The Calendar hole will go live in approximately 10 days. Why not try and solve it ahead of time?
Billiards 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 123mjb 473 198 11ms 24 days ago 322nd jerrandolph 468 398 274ms 25 Sep 2025 323rd guilhem-roy 🇫🇷 463 202 13ms 29 May 2025 324th dokutan 461 209 917ms 30 Aug 2025 325th Maashau 461 280 2ms 18 days ago 326th bac0id 457 283 3ms 10 Jan 2025 327th prplz 🇦🇺 456 205 19ms 31 Jan 2025 328th voytxt 🇨🇿 455 218 10ms 1 Dec 2024 329th solisolu 446 210 11ms 20 days ago 330th dokutan 441 212 19ms 29 Apr 2025 331st DialFrost 🇸🇬 435 215 28ms 1 Dec 2024 332nd DialFrost 🇸🇬 434 206 544ms 1 Dec 2024 333rd dokutan 431 165 38ms 15 Jun 2025 334th DanS1024 431 217 10ms 3 Dec 2024 335th JDiLenarda 🇫🇷 431 459 1,626ms 26 Jun 2025 336th tomh1012 425 371 380ms 15 Aug 2025 337th Lv0Sys 🇵🇱 423 221 14ms 10 days ago 338th dokutan 422 212 352ms 29 Apr 2025 339th Ripick 414 212 696ms 11 Jul 2025 340th steef435 414 226 13ms 6 Jul 2025 341st qpwoeirut 409 229 31ms 25 Aug 2025 342nd zakariamouhid 405 245 9ms 30 Nov 2024 342nd gigaprofisi 🇺🇸 405 245 10ms 5 Jul 2025 344th madex 🇩🇪 389 255 10ms 15 Dec 2024 345th msbranicky 389 424 3ms 20 Jan 2025 346th marcin7Cd 383 244 55ms 4 Feb 2025 347th ShiraJoseph 🇺🇸 379 262 11ms 9 Dec 2024 348th olleicua 🇺🇸 372 191 39ms 11 Jun 2025 349th TheZwierzLF 🇵🇱 371 252 4,087ms 20 days ago 350th croc54 370 253 11ms 5 Jan 2025 351st alphafalfa 367 250 3ms 1 Aug 2025 352nd acollett89 366 271 10ms 17 Jul 2025 353rd TheZwierzLF 🇵🇱 365 245 588ms 9 days ago 354th dokutan 363 397 104ms 29 Apr 2025 355th Emutis 🇱🇹 356 263 10ms 4 Nov 2025 356th Keegan-T 🇨🇦 354 264 14ms 20 Apr 2025 357th msbranicky 353 421 3,931ms 7 Jan 2025 358th aksyristos 350 267 10ms 1 Dec 2024 359th mathisfun271 347 270 16ms 25 Jan 2025 360th madeforlosers 343 289 11ms 28 Apr 2025 361st Shotokhan 340 275 13ms 25 Sep 2025 362nd LuisGoncalves05 🇵🇹 339 276 10ms 29 Jul 2025 363rd TheZwierzLF 🇵🇱 331 215 51ms 5 hours ago 364th madex 🇩🇪 331 283 10ms 25 Nov 2024 365th PyryL 🇫🇮 328 285 14ms 8 Dec 2024 365th mbittner20 328 285 10ms 10 Feb 2025 367th OllieBoyne 🇬🇧 327 286 14ms 6 Dec 2024 367th matsagad 327 286 10ms 12 Dec 2024 369th BREMAUCY 🇫🇷 325 288 11ms 22 Aug 2025 370th dokutan 324 295 827ms 29 Apr 2025 371st CarterStroik 322 476 3ms 6 days ago 372nd WillowWispy 314 298 10ms 21 Apr 2025 373rd CarterStroik 309 591 416ms 7 Nov 2025 374th The-Wolfson 305 564 138ms 8 Feb 2025 375th TRexOnGit 301 329 11ms 20 Nov 2025 376th retrohun 282 332 10ms 7 Dec 2024 377th ravnskjaer 🇩🇰 282 647 320ms 6 days ago 378th JOrE20 🇺🇸 281 353 9ms 20 days ago 379th Andriamanitra 🇫🇮 280 254 39ms 8 Jun 2025 380th billythekid 280 455 4ms 6 Jun 2025 381st galloj 🇨🇿 275 340 10ms 4 Dec 2024 382nd Schmitt-Very-Cool 272 672 545ms 26 Sep 2025 383rd StefanHabel 🇨🇦 265 353 17ms 28 Mar 2025 384th AidanWalter 264 355 13ms 24 days ago 385th nullshallot 262 326 2,055ms 3 Jan 2025 386th jameswmccarty 258 362 14ms 17 Feb 2025 387th msbranicky 256 366 10ms 5 Jan 2025 388th rollershutter 254 369 21ms 24 Feb 2025 389th TimSvensson 249 376 14ms 9 Apr 2025 390th MeWhenI 🇻🇦 239 388 4ms 16 Nov 2025 391st the-zammers 232 612 153ms 1 Dec 2024 392nd evan18c 209 447 12ms 16 Apr 2025 393rd Zhenyu-Bo 198 472 11ms 30 Jul 2025 394th dokutan 181 578 12ms 3 Jul 2025 395th zt14427 172 544 14ms 27 Dec 2024 396th dokutan 158 554 705ms 28 Jun 2025 397th JOrE20 🇺🇸 158 1,140 52ms 7 hours ago 398th JOrE20 🇺🇸 152 1,508 117ms 20 days ago 399th KatieLG 🇬🇧 44 5,832 4ms 2 Dec 2024 400th JOrE20 🇺🇸 28 3,257 5ms 20 days ago First Prev 321–400 of 460 Next Last