The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Sierpiński Triangle 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 721st Yewzir 🇧🇪 628 72 319ms 26 May 2024 722nd hrrs01 628 77 51ms 5 Feb 2018 722nd FlyingPenguin223 628 77 33ms 23 Sep 2024 724th giacomogallina 628 89 17ms 12 Jun 2019 724th fynnkroeger 628 89 9ms 20 Feb 2021 724th Artemis21 🇬🇧 628 89 11ms 17 Jan 2025 724th HumanoidCPU 628 89 9ms 11 Feb 2025 724th iliao2345 628 89 9ms 8 Jul 2025 724th albanian-laundromat 628 89 10ms 11 Nov 2025 730th MeWhenI 🇻🇦 628 122 44ms 13 Feb 2025 731st user189032 624 110 112ms 29 May 2019 732nd Steffan153 🇫🇮 624 113 363ms 21 Feb 2024 733rd Shanethegamer 🇺🇸 623 114 485ms 4 Apr 2022 734th Constructor7 621 90 11ms 23 Feb 2018 734th neihousaigaai 621 90 16ms 7 May 2021 736th alemelis 620 73 364ms 4 Mar 2024 737th n1LS 620 78 43ms 9 Oct 2019 738th prestosilver 🇺🇸 620 90 2ms 31 hours ago 739th retrohun 620 118 60ms 28 Dec 2022 740th janbehrens 🇩🇪 615 75 1,164ms 27 Nov 2022 741st MadScience137 614 78 9ms 19 Oct 2022 742nd MarcMush 🇫🇷 614 91 9ms 13 Jan 2022 742nd SB-945 614 91 10ms 7 Apr 2024 742nd RaBa21 🇭🇺 614 91 9ms 21 Jul 2025 745th laikoni 613 112 119ms 3 Mar 2019 746th primo-ppcg 🇹🇭 613 115 383ms 18 Aug 2021 747th Shanethegamer 🇺🇸 612 96 94ms 2 Jul 2021 747th Yewzir 🇧🇪 612 96 94ms 3 Feb 2024 749th Shanethegamer 🇺🇸 610 70 2ms 13 Dec 2022 749th DialFrost 🇸🇬 610 70 2ms 1 Feb 2025 751st CaedenHarper 🇨🇦 609 72 720ms 7 Sep 2025 752nd eddvrs 608 92 10ms 21 Dec 2023 752nd coldham10 608 92 9ms 28 Jun 2025 754th emgordon154 608 106 4ms 30 Dec 2024 755th MeWhenI 🇻🇦 608 122 3ms 2 Oct 2022 756th HumanoidCPU 607 88 438ms 11 Feb 2025 756th snoozingnewt 🇨🇦 607 88 349ms 20 Nov 2025 758th postie77 607 106 331ms 26 Jul 2023 759th Irratix 🇳🇱 607 116 374ms 23 May 2022 760th snoozingnewt 🇨🇦 606 99 98ms 20 Nov 2025 761st annaproxy 602 114 119ms 6 Feb 2022 761st Sakisan 🇧🇪 602 114 116ms 12 Apr 2022 761st Shanethegamer 🇺🇸 602 114 111ms 25 Oct 2022 764th albanian-laundromat 601 89 452ms 11 Nov 2025 765th AgathokakologicalBit 601 93 11ms 27 Jul 2019 765th stordev 601 93 10ms 26 Feb 2021 765th rak1507 🇬🇧 601 93 10ms 10 Mar 2021 765th ArmaanAS 601 93 11ms 6 Apr 2021 765th olivermrose 🇺🇸 601 93 10ms 29 Aug 2021 765th CodyMiner 601 93 10ms 14 Nov 2021 765th vodker1 601 93 10ms 7 Mar 2022 765th trist224 🇫🇷 601 93 12ms 15 Sep 2022 765th TheBlupper 601 93 12ms 24 Oct 2022 765th Eilonlif 🇮🇱 601 93 11ms 4 Nov 2022 765th MichalMarsalek 🇨🇿 601 93 10ms 21 Jan 2023 765th klixel 🇨🇦 601 93 10ms 19 Jan 2025 765th agreegious 601 93 10ms 16 Mar 2025 778th GolfingSuccess 🇬🇷 600 93 1ms 21 Dec 2023 778th Yewzir 🇧🇪 600 93 1ms 9 Feb 2024 780th Yewzir 🇧🇪 599 122 403ms 19 Nov 2023 780th qwertyuiop3 🇷🇺 599 122 423ms 28 May 2025 782nd elisherer 🇮🇱 598 80 9ms 5 Apr 2019 783rd targrik 598 82 6ms 21 days ago 784th janAkali 🇷🇺 596 121 119ms 17 May 2025 785th MeWhenI 🇻🇦 595 68 4ms 15 Feb 2025 786th knutae 🇳🇴 595 94 10ms 4 Dec 2021 786th hellwue 595 94 9ms 29 Aug 2024 786th wh3n3v3r 🇨🇿 595 94 9ms 13 Nov 2024 789th LHLaurini 🇧🇷 594 94 1ms 2 May 2024 789th iczelia 🇩🇪 594 94 2ms 15 Oct 2025 791st lynn 593 54 14ms 25 Jul 2021 792nd DialFrost 🇸🇬 592 74 751ms 2 Sep 2025 793rd emgordon154 592 96 134ms 5 Jan 2025 794th DialFrost 🇸🇬 592 150 25ms 6 Jan 2023 795th MeWhenI 🇻🇦 592 171 1,722ms 22 Apr 2024 796th DaCuteRaccoon 589 82 34ms 27 Apr 2022 796th aksyristos 589 82 36ms 31 Jan 2023 798th sambirnbaum1 589 95 10ms 12 Oct 2019 798th tooningelaere 589 95 10ms 4 Dec 2022 798th andre-lameirinhas 🇵🇹 589 95 9ms 23 May 2023 First Prev 721–800 of 2,057 Next Last