The Calendar hole will go live in approximately 7 days. Why not try and solve it ahead of time?
Sierpiński Triangle 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 emplv 🇱🇻 865 53 9ms 8 Mar 2023 242nd AlexDaniel 🇪🇪 863 41 148ms 21 Feb 2018 243rd thospel 863 42 3ms 2 Apr 2018 243rd nwellnhof 🇩🇪 863 42 2ms 22 May 2022 243rd sisyphus-ppcg 🇦🇺 863 42 3ms 22 Jan 2023 243rd Lydxn 🇨🇦 863 42 3ms 5 Feb 2023 243rd Steffan153 🇫🇮 863 42 3ms 21 Feb 2024 243rd sean-niemann 🇺🇸 863 42 3ms 10 Mar 2025 243rd saito-ta 🇯🇵 863 42 3ms 3 Aug 2025 250th andersk 🇺🇸 861 91 127ms 1 Nov 2022 251st DialFrost 🇸🇬 861 105 103ms 19 days ago 252nd ovs-code 🇩🇪 861 179 7ms 31 Mar 2023 253rd primo-ppcg 🇹🇭 861 289 12ms 13 Aug 2025 254th Steffan153 🇫🇮 860 66 120ms 21 Feb 2024 255th GrayJoKing 🇦🇺 859 101 24ms 5 Apr 2023 256th kg583 🇺🇸 858 87 47ms 16 Feb 2025 257th lynn 857 35 36ms 1 Dec 2021 257th lynn 857 35 2ms 10 Jan 2022 259th rucin93 🇵🇱 857 61 127ms 12 Dec 2024 260th emgordon154 856 57 351ms 10 Sep 2025 261st rhdqor213 855 63 123ms 27 Sep 2023 262nd primo-ppcg 🇹🇭 854 78 115ms 15 Feb 2019 262nd ovs-code 🇩🇪 854 78 113ms 11 Nov 2023 264th m-tkach 🇺🇦 854 123 24ms 3 May 2022 265th AdrienHache 🇫🇷 853 73 382ms 22 Sep 2025 266th sean-niemann 🇺🇸 852 92 117ms 27 Nov 2023 267th MeWhenI 🇻🇦 851 74 1ms 31 Dec 2022 268th saito-ta 🇯🇵 850 65 10ms 12 Dec 2023 269th Steffan153 🇫🇮 849 81 4ms 4 Jul 2024 270th primo-ppcg 🇹🇭 847 114 285ms 13 May 2020 271st MichalMarsalek 🇨🇿 845 83 126ms 12 Feb 2023 271st steffan-polygolf 845 83 145ms 21 Feb 2024 273rd saito-ta 🇯🇵 843 60 2ms 31 May 2022 274th lynn 842 93 127ms 10 Mar 2022 275th MeWhenI 🇻🇦 842 103 26ms 7 Jun 2023 276th prplz 🇦🇺 841 63 10ms 21 Oct 2019 276th Attero 🇸🇪 841 63 11ms 25 Sep 2020 278th MeWhenI 🇻🇦 840 53 32ms 17 Nov 2022 278th stefangimmillaro 840 53 34ms 11 Jan 2023 278th Irratix 🇳🇱 840 53 37ms 19 Jan 2023 281st SirBogman 🇺🇸 839 55 244ms 29 Jan 2024 282nd m-tkach 🇺🇦 838 132 2ms 29 Jan 2024 283rd sean-niemann 🇺🇸 835 68 90ms 23 Jun 2025 284th marcin7Cd 835 88 5ms 4 Feb 2021 285th vlpx 🇫🇮 834 55 10ms 1 Aug 2024 285th p01 834 55 9ms 25 Jul 2025 287th KasperKivimaeki 🇫🇮 833 116 259ms 9 Oct 2025 288th jared-hughes 833 185 7ms 24 Jul 2023 289th ovs-code 🇩🇪 830 51 253ms 9 May 2024 290th MeWhenI 🇻🇦 830 300 12ms 28 Aug 2023 291st jared-hughes 829 76 2ms 13 Nov 2022 292nd ovs-code 🇩🇪 828 61 4ms 20 Oct 2024 293rd ovs-code 🇩🇪 827 59 362ms 16 Jan 2024 293rd DialFrost 🇸🇬 827 59 389ms 16 Jan 2024 293rd neel11235813 827 59 356ms 14 Mar 2024 296th inventshah 827 64 10ms 21 Jan 2023 296th commandblockguy 🇺🇸 827 64 9ms 22 Aug 2023 296th steffan-polygolf 827 64 10ms 8 Mar 2024 296th Yewzir 🇧🇪 827 64 11ms 5 Jun 2024 296th ryyyn 🇺🇸 827 64 10ms 6 days ago 301st primo-ppcg 🇹🇭 827 77 1,304ms 11 May 2020 302nd CLOStrophobic 🇮🇹 826 89 10ms 4 Mar 2025 303rd Kacarott 🇦🇺 825 85 62ms 15 days ago 304th sisyphus-ppcg 🇦🇺 824 54 36ms 22 Jan 2023 304th ovs-code 🇩🇪 824 54 36ms 8 Jun 2024 304th anter69 🇭🇺 824 54 35ms 21 Oct 2024 304th pardouin 🇫🇷 824 54 36ms 11 Aug 2025 308th MeWhenI 🇻🇦 824 56 248ms 28 Jan 2023 309th emplv 🇱🇻 824 57 9ms 2 Jul 2023 310th GrayJoKing 🇦🇺 823 72 224ms 30 Oct 2023 311th GrayJoKing 🇦🇺 822 140 2ms 6 Dec 2020 312th bendiscz 819 118 286ms 18 Apr 2020 313th GrayJoKing 🇦🇺 818 77 1ms 23 Jan 2023 314th MeWhenI 🇻🇦 817 54 954ms 12 May 2023 314th rucin93 🇵🇱 817 54 892ms 11 Jul 2024 314th pardouin 🇫🇷 817 54 1,238ms 11 Aug 2025 317th somebody1234 817 90 7ms 19 May 2018 318th nwellnhof 🇩🇪 816 62 1ms 16 Jul 2022 319th emplv 🇱🇻 816 66 2ms 31 May 2022 320th MeWhenI 🇻🇦 816 80 99ms 17 Nov 2022 First Prev 241–320 of 2,038 Next Last