The Calendar hole will go live in approximately 9 days. Why not try and solve it ahead of time?
Tic-tac-toe 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 MeWhenI 🇻🇦 685 163 13ms 8 Jul 2025 322nd dmrichwa 🇺🇸 681 105 12ms 31 Jan 2025 323rd cefqrn 679 102 19ms 14 Feb 2025 324th Shanethegamer 🇺🇸 679 198 315ms 31 Jan 2025 324th edsrzf 🇳🇿 679 198 305ms 20 Aug 2025 326th dokutan 677 62 36ms 31 Jan 2025 327th DialFrost 🇸🇬 676 66 4ms 27 Jan 2025 328th SirBogman 🇺🇸 676 70 40ms 5 Feb 2025 329th dokutan 675 94 602ms 1 Feb 2025 330th Shanethegamer 🇺🇸 671 153 582ms 16 Feb 2025 331st MeWhenI 🇻🇦 669 211 12ms 26 Jan 2025 332nd MeWhenI 🇻🇦 667 141 3ms 29 Jan 2025 333rd 5cw 🇺🇸 666 104 19ms 1 Feb 2025 333rd GrayJoKing 🇦🇺 666 104 18ms 2 Jul 2025 333rd fourth-bit 666 104 19ms 23 Sep 2025 336th AlephSquirrel 664 172 15ms 25 Jan 2025 337th tayloia 🇬🇧 662 108 13ms 26 Jan 2025 337th dokutan 662 108 13ms 1 Feb 2025 337th coreynash 662 108 13ms 13 Feb 2025 340th MeWhenI 🇻🇦 662 155 834ms 27 Jan 2025 341st SirBogman 🇺🇸 660 105 18ms 29 Jan 2025 341st martindotexe 🇳🇴 660 105 12ms 14 Feb 2025 341st inventshah 660 105 14ms 14 Apr 2025 344th emgordon154 659 128 53ms 29 May 2025 345th olleicua 🇺🇸 656 109 11ms 9 Sep 2025 346th CaedenHarper 🇨🇦 654 93 1,127ms 2 Oct 2025 347th duckyluuk 🇳🇱 654 97 610ms 5 Feb 2025 348th j2e2 🇪🇸 652 154 27ms 14 Feb 2025 349th Shanethegamer 🇺🇸 649 97 148ms 16 Jan 2025 350th DialFrost 🇸🇬 648 107 18ms 26 Jan 2025 350th ahmetdemirag 🇨🇾 648 107 20ms 14 Feb 2025 350th xsot 🇸🇬 648 107 18ms 4 Jul 2025 353rd emgordon154 648 200 218ms 18 Feb 2025 354th Salutations45 645 82 9ms 7 Oct 2025 355th dokutan 643 98 138ms 1 Feb 2025 356th FlorianCassayre 🇫🇷 642 108 21ms 31 Jan 2025 356th Bulmenisaurus 642 108 17ms 4 Feb 2025 358th rucin93 🇵🇱 642 122 398ms 25 Jul 2025 359th jared-hughes 639 112 11ms 13 Feb 2025 360th btjones0 636 109 14ms 5 Feb 2025 360th Fvirgilio 636 109 14ms 4 Sep 2025 360th Babafaba 636 109 21ms 22 Oct 2025 363rd dokutan 636 162 902ms 24 Sep 2025 364th tobeannouncd 635 192 191ms 25 Apr 2025 365th MeWhenI 🇻🇦 634 147 157ms 30 Jan 2025 366th the-zammers 632 193 181ms 2 Feb 2025 367th error256 630 110 18ms 17 Feb 2025 367th Kacarott 🇦🇺 630 110 17ms 17 Feb 2025 369th MeWhenI 🇻🇦 630 147 126ms 31 Jan 2025 370th gastropner 628 92 345ms 10 Feb 2025 371st MeWhenI 🇻🇦 627 97 949ms 15 Sep 2025 372nd Shanethegamer 🇺🇸 626 141 124ms 6 Feb 2025 373rd AlephSquirrel 624 111 18ms 31 Dec 2024 373rd Natanaelel 🇸🇪 624 111 20ms 25 Jan 2025 373rd Keegan-T 🇨🇦 624 111 15ms 20 Apr 2025 373rd bzijlema 🇳🇱 624 111 17ms 27 Jun 2025 373rd edsrzf 🇳🇿 624 111 18ms 20 Aug 2025 378th AlephSquirrel 622 102 902ms 25 Jan 2025 379th targrik 622 115 11ms 5 Feb 2025 380th madex 🇩🇪 619 152 3ms 9 Feb 2025 381st galloj 🇨🇿 618 68 34ms 30 Jan 2025 382nd Shanethegamer 🇺🇸 617 150 121ms 6 Feb 2025 383rd tatzyr 🇯🇵 616 80 52ms 26 Mar 2025 384th SirBogman 🇺🇸 616 103 691ms 30 Jan 2025 385th MeWhenI 🇻🇦 616 121 176ms 8 Jul 2025 386th targrik 615 123 69ms 27 days ago 387th Shanethegamer 🇺🇸 615 147 353ms 6 Feb 2025 388th commandblockguy 🇺🇸 613 113 17ms 28 Jan 2025 389th commandblockguy 🇺🇸 610 104 698ms 1 Sep 2025 390th Shanethegamer 🇺🇸 607 139 15ms 22 Feb 2025 391st Natanaelel 🇸🇪 607 201 209ms 20 Jun 2025 392nd MeWhenI 🇻🇦 607 311 733ms 10 Feb 2025 393rd DialFrost 🇸🇬 604 105 641ms 27 Jan 2025 393rd Babafaba 604 105 415ms 22 Oct 2025 395th MeWhenI 🇻🇦 602 241 33ms 29 Apr 2025 396th albanian-laundromat 602 345 13ms 5 days ago 397th solisolu 597 116 14ms 6 Nov 2025 398th kdx2a 592 159 3ms 11 Feb 2025 399th LukeBridges 🇬🇧 591 121 13ms 4 Feb 2025 400th yeminghan2021 591 192 89ms 2 Feb 2025 First Prev 321–400 of 675 Next Last