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 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 401st targrik 628 115 11ms 5 Feb 2025 402nd MeWhenI 🇻🇦 627 121 176ms 8 Jul 2025 403rd gresm 625 143 13ms 30 Jan 2025 404th Shanethegamer 🇺🇸 625 150 121ms 6 Feb 2025 405th madex 🇩🇪 625 152 3ms 9 Feb 2025 406th AdrienHache 🇫🇷 624 77 58ms 30 Jan 2025 407th targrik 624 123 69ms 24 Nov 2025 408th KatieLG 🇬🇧 624 127 871ms 14 Aug 2025 409th Shanethegamer 🇺🇸 624 147 353ms 6 Feb 2025 410th madex 🇩🇪 621 144 15ms 31 Jan 2025 410th nooberitess 621 144 13ms 8 Apr 2025 410th neihousaigaai 621 144 15ms 10 Apr 2025 413th Shanethegamer 🇺🇸 617 139 15ms 22 Feb 2025 414th codewrite 🇬🇧 617 145 19ms 15 May 2025 415th Natanaelel 🇸🇪 613 201 209ms 20 Jun 2025 416th MeWhenI 🇻🇦 611 311 733ms 10 Feb 2025 417th MeWhenI 🇻🇦 608 241 33ms 29 Apr 2025 418th albanian-laundromat 606 345 13ms 6 days ago 419th rucin93 🇵🇱 604 148 12ms 30 Jan 2025 420th kdx2a 598 159 3ms 11 Feb 2025 421st LukeBridges 🇬🇧 597 121 13ms 4 Feb 2025 422nd luuumine 🇫🇷 596 150 16ms 31 Oct 2025 423rd yeminghan2021 596 192 89ms 2 Feb 2025 424th dokutan 595 148 15ms 31 Jan 2025 425th IsaacAlexBarden 592 151 20ms 6 Feb 2025 425th OllieBoyne 🇬🇧 592 151 17ms 6 Feb 2025 425th Mabeloid 🇳🇴 592 151 16ms 14 Feb 2025 428th voytxt 🇨🇿 590 322 661ms 1 Feb 2025 429th dokutan 588 129 264ms 9 Feb 2025 430th Shanethegamer 🇺🇸 588 158 6ms 6 Feb 2025 431st dmrichwa 🇺🇸 587 123 12ms 31 Jan 2025 432nd msbranicky 585 193 9ms 2 Feb 2025 433rd Shanethegamer 🇺🇸 584 107 423ms 26 Jan 2025 434th jatloe 584 153 15ms 17 Mar 2025 435th Emutis 🇱🇹 581 154 15ms 14 Feb 2025 435th Lv0Sys 🇵🇱 581 154 20ms 12 days ago 437th MeWhenI 🇻🇦 580 144 335ms 28 Jan 2025 437th GolfingSuccess 🇬🇷 580 144 21ms 31 Jan 2025 439th dokutan 579 137 603ms 31 Jan 2025 440th CaedenHarper 🇨🇦 575 181 637ms 4 Oct 2025 441st gnlow 🇰🇷 573 126 11ms 11 Feb 2025 441st ShiraJoseph 🇺🇸 573 126 19ms 24 Feb 2025 443rd Fracture17 573 156 12ms 12 Feb 2025 444th Shanethegamer 🇺🇸 569 95 1,223ms 17 Jan 2025 445th madex 🇩🇪 569 127 13ms 10 Feb 2025 446th bobbysq 569 157 15ms 4 Mar 2025 446th klixel 🇨🇦 569 157 18ms 19 Jul 2025 448th FlyingPenguin223 567 164 6ms 14 Feb 2025 449th starfihs 566 158 18ms 10 Feb 2025 450th h3ra993huskp 🇯🇵 565 184 833ms 22 days ago 451st martindotexe 🇳🇴 559 160 13ms 14 Feb 2025 452nd dokutan 555 130 11ms 31 Jan 2025 453rd croc54 555 161 14ms 31 Jan 2025 454th The3gs 554 236 159ms 26 Jan 2025 455th MeWhenI 🇻🇦 547 99 10ms 27 Jan 2025 456th TheZwierzLF 🇵🇱 547 145 1,874ms 8 days ago 457th Shanethegamer 🇺🇸 546 153 335ms 31 Jan 2025 458th Shanethegamer 🇺🇸 545 92 51ms 17 Jan 2025 459th Babafaba 542 165 21ms 4 Nov 2025 460th Shanethegamer 🇺🇸 540 163 15ms 16 Feb 2025 461st FlorianCassayre 🇫🇷 539 166 21ms 31 Jan 2025 461st noanabeshima 539 166 13ms 9 Jul 2025 461st yokasuretsu 539 166 14ms 11 Jul 2025 464th JDiLenarda 🇫🇷 538 222 1,446ms 26 Jun 2025 465th Keegan-T 🇨🇦 535 167 14ms 16 Apr 2025 465th evan18c 535 167 16ms 16 Apr 2025 467th Shanethegamer 🇺🇸 534 142 149ms 9 Feb 2025 468th CutSandstone 532 168 19ms 30 Jan 2025 468th sciencejiho 532 168 18ms 10 Feb 2025 468th dirckvdende 532 168 14ms 17 Jul 2025 471st jameswmccarty 529 169 15ms 9 Feb 2025 472nd prestosilver 🇺🇸 528 180 3ms 17 Nov 2025 473rd alexsave 527 137 21ms 8 Oct 2025 474th dokutan 527 144 144ms 31 Jan 2025 475th hiichbindermax 526 170 14ms 5 Feb 2025 476th Salutations45 523 138 15ms 13 Feb 2025 477th xyangst 519 139 21ms 14 Feb 2025 478th YAJUE114514 517 173 14ms 30 Jul 2025 478th aalec 517 173 13ms 8 Nov 2025 480th nstearns96 🇬🇧 511 175 17ms 4 Feb 2025 First Prev 401–480 of 678 Next Last