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 241st kumavale 786 165 152ms 13 Sep 2025 242nd snoozingnewt 🇨🇦 784 81 573ms 18 hours ago 243rd lynn 781 166 246ms 29 Jan 2025 244th emplv 🇱🇻 780 97 8ms 5 Feb 2025 245th Natanaelel 🇸🇪 779 68 1,485ms 25 Jan 2025 246th Shanethegamer 🇺🇸 777 157 184ms 17 Jan 2025 247th stefangimmillaro 774 114 126ms 6 Feb 2025 248th edsrzf 🇳🇿 772 98 7ms 19 Aug 2025 249th Shanethegamer 🇺🇸 772 188 30ms 14 Mar 2025 250th olleicua 🇺🇸 770 64 36ms 14 Feb 2025 251st Natanaelel 🇸🇪 769 58 3ms 25 Jan 2025 251st pardouin 🇫🇷 769 58 4ms 31 Jan 2025 253rd error256 768 99 11ms 26 Jan 2025 254th KasperKivimaeki 🇫🇮 765 123 3ms 26 Jan 2025 255th dylanarmstrong 761 94 11ms 21 Feb 2025 256th sean-niemann 🇺🇸 760 147 7ms 31 Jan 2025 257th albanian-laundromat 756 84 437ms 4 Aug 2025 258th sisyphus-ppcg 🇦🇺 756 100 10ms 3 Feb 2025 259th error256 756 119 297ms 14 Feb 2025 260th kg583 🇺🇸 755 165 65ms 14 Feb 2025 261st albanian-laundromat 754 148 14ms 27 Jul 2025 262nd SB-945 753 92 21ms 31 Jan 2025 263rd MeWhenI 🇻🇦 753 109 126ms 31 Jan 2025 264th sean-niemann 🇺🇸 751 81 920ms 20 Sep 2025 265th emgordon154 750 40 124ms 20 Nov 2025 266th Shanethegamer 🇺🇸 745 96 14ms 16 Jan 2025 267th SirBogman 🇺🇸 744 52 11ms 27 Jan 2025 268th error256 742 82 991ms 11 Sep 2025 269th edsrzf 🇳🇿 741 122 402ms 18 Sep 2025 270th gastropner 741 127 3ms 10 Feb 2025 271st tailorspy 741 153 81ms 13 Mar 2025 272nd edsrzf 🇳🇿 738 101 187ms 21 Aug 2025 273rd retrohun 737 57 34ms 3 Feb 2025 274th dokutan 737 94 19ms 1 Feb 2025 275th stefangimmillaro 737 176 178ms 31 Jan 2025 276th kkoenig 735 128 3ms 5 Sep 2025 277th xnor-gate 729 95 27ms 27 Jan 2025 278th primo-ppcg 🇹🇭 729 96 75ms 3 Aug 2025 279th JohandeRuiter 🇳🇱 729 129 3ms 10 Feb 2025 280th Shanethegamer 🇺🇸 728 128 125ms 24 May 2025 281st Shanethegamer 🇺🇸 728 162 1,479ms 17 Jan 2025 282nd MeWhenI 🇻🇦 726 185 367ms 31 Jan 2025 283rd Andriamanitra 🇫🇮 725 68 36ms 14 Feb 2025 284th m-tkach 🇺🇦 725 208 32ms 26 Jun 2025 285th error256 724 58 47ms 26 Jan 2025 286th emgordon154 724 87 136ms 29 Jan 2025 286th DialFrost 🇸🇬 724 87 146ms 31 Jan 2025 286th ovs-code 🇩🇪 724 87 139ms 17 Apr 2025 289th ovs-code 🇩🇪 721 88 638ms 26 Jan 2025 290th MeWhenI 🇻🇦 717 76 9ms 13 Jul 2025 291st emplv 🇱🇻 716 88 130ms 25 Oct 2025 292nd DialFrost 🇸🇬 716 116 4,036ms 30 Jan 2025 293rd duckyluuk 🇳🇱 715 100 16ms 14 Feb 2025 294th AlephSquirrel 715 188 4ms 19 May 2025 295th m-tkach 🇺🇦 713 89 576ms 28 Jan 2025 295th KatieLG 🇬🇧 713 89 431ms 6 Oct 2025 297th nullie 709 183 238ms 20 Feb 2025 298th MeWhenI 🇻🇦 707 89 130ms 13 Jul 2025 299th kops-cg 707 98 18ms 22 Feb 2025 300th albanian-laundromat 707 190 288ms 14 days ago 301st bizy-coder 705 90 750ms 14 Feb 2025 302nd gastropner 704 161 83ms 10 Feb 2025 303rd btnlq 700 99 16ms 3 Jan 2025 303rd m-tkach 🇺🇦 700 99 32ms 28 Jan 2025 303rd bizy-coder 700 99 22ms 29 Jan 2025 303rd bricknellj 700 99 12ms 21 May 2025 303rd rucin93 🇵🇱 700 99 13ms 31 May 2025 308th Shanethegamer 🇺🇸 699 270 686ms 31 Jan 2025 309th MeWhenI 🇻🇦 693 100 86ms 12 Jul 2025 309th nwellnhof 🇩🇪 693 100 20ms 16 Jul 2025 309th ryyyn 🇺🇸 693 100 38ms 3 Oct 2025 309th luuumine 🇫🇷 693 100 15ms 31 Oct 2025 313th dokutan 692 110 15ms 6 Feb 2025 314th MeWhenI 🇻🇦 690 92 721ms 12 Jul 2025 315th Andrey-Plotnikov 688 104 11ms 29 May 2025 316th MeWhenI 🇻🇦 688 217 1,811ms 7 Nov 2025 317th MeWhenI 🇻🇦 687 165 595ms 29 Jan 2025 318th ovs-code 🇩🇪 686 101 31ms 27 Jan 2025 318th stefangimmillaro 686 101 13ms 29 Jan 2025 320th retrohun 686 102 549ms 14 Feb 2025 First Prev 241–320 of 675 Next Last