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 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 721st geofft 623 85 9ms 12 Dec 2020 721st programjames 623 85 10ms 7 May 2022 723rd emgordon154 622 92 4,729ms 4 Jul 2025 724th MeWhenI 🇻🇦 622 120 44ms 13 Feb 2025 725th madeforlosers 620 74 9ms 31 Oct 2023 726th Steffan153 🇫🇮 619 112 371ms 21 Feb 2024 727th zdzc 616 86 9ms 8 Feb 2018 727th Constructor7 616 86 11ms 23 Feb 2018 727th nstearns96 🇬🇧 616 86 10ms 8 Dec 2022 727th TaserTheFox 🇺🇸 616 86 13ms 1 May 2023 727th FortuiteMan 🇫🇷 616 86 9ms 11 days ago 732nd Shanethegamer 🇺🇸 616 112 485ms 4 Apr 2022 733rd dloscutoff 614 69 368ms 27 Nov 2018 734th primo-ppcg 🇹🇭 614 113 383ms 18 Aug 2021 735th retrohun 613 116 60ms 28 Dec 2022 736th emgordon154 613 119 6ms 10 Sep 2025 737th MeWhenI 🇻🇦 612 49 34ms 28 Nov 2021 738th prestosilver 🇺🇸 612 88 2ms 31 hours ago 739th HumanoidCPU 610 73 38ms 2 Jun 2024 740th giacomogallina 609 87 17ms 12 Jun 2019 740th fynnkroeger 609 87 9ms 20 Feb 2021 740th jacklynnepenick 609 87 10ms 26 Aug 2021 740th iliao2345 609 87 9ms 8 Jul 2025 744th Irratix 🇳🇱 608 114 374ms 23 May 2022 745th laikoni 606 110 119ms 3 Mar 2019 746th Yewzir 🇧🇪 605 70 319ms 26 May 2024 747th janbehrens 🇩🇪 604 60 3ms 28 Nov 2023 748th janbehrens 🇩🇪 604 73 1,164ms 27 Nov 2022 749th Shanethegamer 🇺🇸 604 94 94ms 2 Jul 2021 749th Yewzir 🇧🇪 604 94 94ms 3 Feb 2024 751st MadScience137 603 76 9ms 19 Oct 2022 752nd neihousaigaai 602 88 16ms 7 May 2021 753rd MeWhenI 🇻🇦 601 64 4ms 15 Feb 2025 754th emgordon154 601 104 4ms 30 Dec 2024 755th Attero 🇸🇪 600 59 162ms 13 Apr 2020 756th postie77 599 104 331ms 26 Jul 2023 757th CaedenHarper 🇨🇦 598 70 720ms 7 Sep 2025 758th dokutan 598 115 3ms 8 days ago 759th snoozingnewt 🇨🇦 597 97 98ms 20 Nov 2025 760th alemelis 596 71 364ms 4 Mar 2024 761st AgathokakologicalBit 595 89 11ms 27 Jul 2019 761st stordev 595 89 10ms 26 Feb 2021 761st ArmaanAS 595 89 11ms 6 Apr 2021 761st olivermrose 🇺🇸 595 89 10ms 29 Aug 2021 761st CodyMiner 595 89 10ms 14 Nov 2021 761st MarcMush 🇫🇷 595 89 9ms 13 Jan 2022 761st vodker1 595 89 10ms 7 Mar 2022 761st trist224 🇫🇷 595 89 12ms 15 Sep 2022 761st TheBlupper 595 89 12ms 24 Oct 2022 761st Eilonlif 🇮🇱 595 89 11ms 4 Nov 2022 761st MichalMarsalek 🇨🇿 595 89 10ms 21 Jan 2023 761st klixel 🇨🇦 595 89 10ms 19 Jan 2025 761st agreegious 595 89 10ms 16 Mar 2025 774th annaproxy 595 112 119ms 6 Feb 2022 774th Sakisan 🇧🇪 595 112 116ms 12 Apr 2022 774th Shanethegamer 🇺🇸 595 112 111ms 25 Oct 2022 777th Natanaelel 🇸🇪 594 61 2ms 29 Aug 2022 778th hrrs01 593 75 51ms 5 Feb 2018 778th FlyingPenguin223 593 75 33ms 23 Sep 2024 780th Yewzir 🇧🇪 593 120 403ms 19 Nov 2023 780th qwertyuiop3 🇷🇺 593 120 423ms 28 May 2025 782nd GolfingSuccess 🇬🇷 592 91 1ms 21 Dec 2023 782nd Yewzir 🇧🇪 592 91 1ms 9 Feb 2024 784th janAkali 🇷🇺 589 119 119ms 17 May 2025 785th elisherer 🇮🇱 588 78 9ms 5 Apr 2019 786th eddvrs 588 90 10ms 21 Dec 2023 786th coldham10 588 90 9ms 28 Jun 2025 788th MeWhenI 🇻🇦 588 169 1,722ms 22 Apr 2024 789th targrik 587 80 6ms 21 days ago 790th n1LS 586 76 43ms 9 Oct 2019 791st DialFrost 🇸🇬 586 148 25ms 6 Jan 2023 792nd LHLaurini 🇧🇷 585 92 1ms 2 May 2024 792nd iczelia 🇩🇪 585 92 2ms 15 Oct 2025 794th sambirnbaum1 582 91 10ms 12 Oct 2019 795th UnderKoen 🇳🇱 582 190 1ms 8 Mar 2023 796th DialFrost 🇸🇬 581 72 751ms 2 Sep 2025 797th MeWhenI 🇻🇦 581 87 8ms 16 Aug 2024 798th SirFireball3521 580 61 274ms 2 Mar 2023 799th scpchicken 🇵🇼 579 115 114ms 3 Mar 2022 800th lynn 577 52 14ms 25 Jul 2021 First Prev 721–800 of 2,038 Next Last