The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Leyland Numbers 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 640th stefangimmillaro 731 58 35ms 27 Oct 2021 640th SirBogman 🇺🇸 731 58 39ms 8 Jun 2022 640th sisyphus-ppcg 🇦🇺 731 58 46ms 11 Jul 2022 640th tatzyr 🇯🇵 731 58 56ms 24 Nov 2024 640th KatieLG 🇬🇧 731 58 33ms 2 Oct 2025 646th snoozingnewt 🇨🇦 731 77 6ms 13 Oct 2025 647th KrausRaus 🇺🇸 731 96 10ms 21 Dec 2021 648th annaproxy 730 155 349ms 1 Apr 2022 648th snoozingnewt 🇨🇦 730 155 396ms 13 Oct 2025 650th Andriamanitra 🇫🇮 728 59 584ms 26 Jul 2023 651st bstrautin 728 83 11ms 27 Jul 2020 651st neihousaigaai 728 83 9ms 8 May 2021 651st commandblockguy 🇺🇸 728 83 14ms 5 Sep 2022 651st glesnick 728 83 10ms 12 Oct 2022 651st AbhilashaTandon 728 83 11ms 23 Nov 2022 651st badboj40 728 83 10ms 27 Dec 2022 651st Just4FunCoder 728 83 16ms 22 Mar 2023 651st cingulataluke 728 83 12ms 28 Aug 2023 651st levavft 728 83 13ms 26 Oct 2023 651st Anonymousellama21 728 83 9ms 9 Aug 2024 651st Andre3582 728 83 9ms 10 Oct 2025 662nd KrausRaus 🇺🇸 728 92 9ms 12 Nov 2020 662nd SadiinsoSnowfall 🇫🇷 728 92 9ms 19 Feb 2024 664th NewDefectus 🇮🇱 726 129 146ms 18 Feb 2021 665th jared-hughes 725 104 13ms 27 Nov 2021 666th inventshah 725 110 2ms 12 Sep 2022 667th perlebach 🇨🇿 724 143 3,690ms 10 Jun 2025 668th Aurel300 🇨🇭 723 165 206ms 20 Jun 2024 669th gjoacorp 🇬🇧 723 172 2,903ms 4 Aug 2025 670th Indivicivet 720 84 18ms 17 Oct 2021 670th Nigel-C 720 84 9ms 30 May 2022 670th OhmNomNom 720 84 10ms 14 Oct 2022 670th betaveros 720 84 9ms 31 Dec 2022 670th Lv0Sys 🇵🇱 720 84 10ms 15 days ago 675th BBoehm 🇩🇪 720 93 9ms 18 Feb 2021 675th helbling 🇨🇭 720 93 9ms 29 May 2024 677th tomh1012 720 157 396ms 5 Sep 2025 678th hiddicop 🇸🇪 719 59 48ms 29 Jan 2021 678th Shanethegamer 🇺🇸 719 59 46ms 16 Feb 2023 678th BREMAUCY 🇫🇷 719 59 40ms 21 May 2023 678th Natanaelel 🇸🇪 719 59 39ms 15 Jan 2024 678th snoozingnewt 🇨🇦 719 59 71ms 2 Oct 2025 683rd Jacob385 719 80 4,063ms 9 Apr 2024 683rd commandblockguy 🇺🇸 719 80 510ms 1 Sep 2025 685th albanian-laundromat 719 137 110ms 7 Nov 2025 686th KatieLG 🇬🇧 718 135 2ms 24 Sep 2021 686th emgordon154 718 135 3ms 21 Jun 2024 688th roupiq 🇵🇱 718 173 2,947ms 26 Feb 2024 689th emgordon154 716 86 1,019ms 29 Jun 2024 690th Shanethegamer 🇺🇸 716 158 419ms 9 Apr 2025 691st primo-ppcg 🇹🇭 716 171 383ms 29 Aug 2020 692nd okaponta 715 167 231ms 11 Jan 2024 693rd TaserTheFox 🇺🇸 714 79 275ms 1 Jun 2023 694th DialFrost 🇸🇬 714 85 11ms 7 Nov 2025 695th janbehrens 🇩🇪 712 85 13ms 29 Oct 2021 696th neihousaigaai 712 94 9ms 18 Apr 2021 696th junkondo-jp 712 94 9ms 8 Jun 2024 696th Yax42 🇫🇷 712 94 11ms 5 Sep 2025 699th HumanEquivalentUnit 711 38 32ms 12 Oct 2020 699th jared-hughes 711 38 71ms 2 Aug 2022 699th Natanaelel 🇸🇪 711 38 50ms 25 Feb 2023 702nd abailey2020 🇺🇸 711 85 9ms 10 Dec 2020 702nd Secozzi 711 85 14ms 21 Mar 2021 702nd tkr-sh 🇰🇵 711 85 83ms 29 Apr 2022 702nd jtaxen 711 85 11ms 29 Apr 2024 702nd cros107 🇦🇺 711 85 16ms 11 Jul 2024 702nd hiichbindermax 711 85 12ms 17 Sep 2024 702nd wuduculfre 711 85 9ms 22 Jul 2025 709th ertz1ertz 711 159 403ms 14 Aug 2024 710th stefangimmillaro 709 99 2,743ms 18 Oct 2023 711th emgordon154 709 109 8ms 10 Dec 2024 712th stefangimmillaro 709 139 2,255ms 18 Oct 2023 713th MeWhenI 🇻🇦 708 210 268ms 9 Feb 2023 714th Andriamanitra 🇫🇮 707 60 49ms 26 Jul 2023 714th olleicua 🇺🇸 707 60 48ms 23 Apr 2025 716th DialFrost 🇸🇬 707 137 2ms 9 Mar 2025 717th billings7 🇬🇧 707 160 414ms 22 May 2024 718th Betuaredead 706 176 2,838ms 13 Jan 2023 719th tayloia 🇬🇧 705 95 9ms 26 May 2022 719th voytxt 🇨🇿 705 95 8ms 17 Jul 2024 First Prev 641–720 of 1,844 Next Last