The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Lucky Tickets 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 561st Kloppermand 🇩🇰 490 191 15ms 8 Jun 2020 562nd MeWhenI 🇻🇦 490 207 4ms 28 May 2023 563rd madex 🇩🇪 489 246 432ms 20 Jun 2025 564th bac0id 487 247 2ms 6 Jul 2024 565th MeWhenI 🇻🇦 486 340 33ms 6 Jun 2023 566th hellwue 485 193 12ms 29 Jul 2024 567th jared-hughes 484 154 258ms 17 Jul 2022 568th o0lit3 🇺🇸 483 110 109ms 23 Jun 2021 569th dokutan 482 168 2,665ms 20 Mar 2025 570th Waffle3z 481 122 57ms 20 Sep 2021 571st Bodo171 480 195 12ms 8 Dec 2022 572nd bac0id 479 294 375ms 6 Jul 2024 573rd scpchicken 🇵🇼 478 100 1,252ms 26 Jan 2023 574th BambooleanLogic 🇸🇪 472 178 10ms 2 Jul 2023 575th CatsAreFluffy 472 198 17ms 2 Feb 2023 576th Shanethegamer 🇺🇸 470 262 6ms 4 Oct 2024 577th michelebastione 🇮🇹 468 200 18ms 27 Oct 2021 578th pschmid0 🇺🇸 465 218 9ms 16 Sep 2022 579th robin-scragg 463 202 11ms 22 Oct 2025 580th rambox11 463 260 2ms 2 May 2020 581st jerrandolph 460 359 649ms 24 Apr 2020 582nd msbranicky 459 175 93ms 16 Aug 2023 583rd msbranicky 456 158 351ms 15 Jan 2024 584th Yax42 🇫🇷 454 185 13ms 8 Sep 2025 585th emgordon154 446 250 5ms 10 Jan 2025 586th snoozingnewt 🇨🇦 446 316 523ms 4 Oct 2025 587th janbehrens 🇩🇪 444 168 12ms 6 Jul 2023 588th tdkkdt 🇷🇺 439 321 338ms 21 Nov 2021 589th ahmetdemirag 🇨🇾 431 217 11ms 4 Apr 2025 590th TimCurwick 🇺🇸 427 162 373ms 4 Aug 2020 591st blaztoma 🇱🇹 425 138 51ms 13 Oct 2025 592nd KatieLG 🇬🇧 422 139 35ms 9 Oct 2022 592nd tatzyr 🇯🇵 422 139 46ms 24 Feb 2025 594th bac0id 421 222 11ms 5 Jul 2024 594th JunkIce 421 222 23ms 16 Jul 2025 596th madeforlosers 420 200 10ms 3 Nov 2025 597th PikeIt 419 140 49ms 26 Jun 2023 598th PikeIt 417 224 12ms 27 Jun 2023 598th FlorianCassayre 🇫🇷 417 224 22ms 5 Aug 2025 600th knutae 🇳🇴 414 226 19ms 16 Jul 2021 600th schachmattmatt 414 226 20ms 29 Sep 2021 602nd Jacob385 413 396 494ms 4 Oct 2024 603rd DialFrost 🇸🇬 410 139 9ms 3 days ago 604th zloyrusskiy 410 143 39ms 20 Jun 2023 605th raphaelimahorn 410 205 17ms 17 Aug 2021 606th leonw774 410 228 12ms 24 Oct 2023 607th ian-h-chamberlain 🇺🇸 408 437 386ms 7 Oct 2020 608th retrohun 408 631 3ms 17 Jun 2023 609th CatsAreFluffy 407 199 664ms 15 Jan 2024 610th DarkTemplar5 403 232 18ms 1 Nov 2020 610th RaBa21 🇭🇺 403 232 11ms 10 Jul 2025 612th msbranicky 401 290 2ms 13 Oct 2023 613th greatenss 400 234 11ms 31 Jul 2024 614th snoozingnewt 🇨🇦 400 362 3,329ms 6 Oct 2025 615th zakariamouhid 393 214 10ms 30 May 2023 616th mbittner20 390 240 11ms 30 Jun 2024 617th aksyristos 388 241 18ms 24 Nov 2024 618th Laksen 🇩🇰 388 480 481ms 8 Jul 2021 619th eranws 386 218 9ms 14 Nov 2022 620th gsprochette 385 243 12ms 22 Aug 2025 621st MeWhenI 🇻🇦 384 198 912ms 15 Sep 2025 622nd wh3n3v3r 🇨🇿 382 245 21ms 18 Nov 2024 623rd dillon-duncando 376 249 12ms 3 Oct 2022 624th emgordon154 375 843 2ms 5 Nov 2024 625th IISResetMe 374 185 408ms 1 Jun 2024 626th xkacer 🇨🇿 374 250 13ms 31 Jan 2021 627th Shanethegamer 🇺🇸 366 189 270ms 26 Jan 2023 628th MeWhenI 🇻🇦 366 305 4ms 23 May 2023 629th XenThe 🇬🇧 362 232 11ms 4 Sep 2025 630th MeWhenI 🇻🇦 359 206 3ms 1 Oct 2022 631st ComputerKWasTaken 🇺🇸 358 261 3,233ms 21 Jan 2025 632nd lifthrasiir 🇰🇷 352 946 7ms 12 Dec 2024 633rd dokutan 351 205 685ms 20 Nov 2023 634th janbehrens 🇩🇪 350 152 3ms 12 Nov 2023 635th MeWhenI 🇻🇦 350 163 2ms 12 Nov 2022 636th Alban-Boissard 350 267 11ms 14 Jun 2025 637th MeWhenI 🇻🇦 349 329 8ms 12 Apr 2024 638th MeWhenI 🇻🇦 348 231 122ms 13 Dec 2022 639th JOrE20 🇺🇸 348 269 11ms 11 days ago 640th IanUtley 345 265 17ms 12 Jan 2024 First Prev 561–640 of 823 Next Last