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 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 anter69 🇭🇺 752 82 827ms 17 Sep 2024 721st Shanethegamer 🇺🇸 752 82 75ms 8 Dec 2024 721st edsrzf 🇳🇿 752 82 65ms 31 Jul 2025 724th edsrzf 🇳🇿 752 163 420ms 26 Sep 2025 724th CaedenHarper 🇨🇦 752 163 449ms 9 Oct 2025 726th emgordon154 751 130 385ms 6 Nov 2025 727th Shanethegamer 🇺🇸 747 60 762ms 17 Feb 2023 728th LeeCamp 747 95 9ms 27 Dec 2021 728th 4ndyJ 🇬🇧 747 95 9ms 7 Feb 2023 728th 0-ag 747 95 11ms 25 Aug 2025 731st tomtheisen 🇺🇸 745 90 9ms 6 Oct 2020 732nd GrayJoKing 🇦🇺 744 156 38ms 4 Jan 2023 733rd jtaxen 743 92 117ms 19 Jun 2024 734th retrohun 742 82 2ms 9 Nov 2022 735th emgordon154 742 86 136ms 15 Nov 2024 736th Psirving 740 96 9ms 29 Jul 2020 736th henrytranter 740 96 10ms 27 Aug 2020 736th chrishm909 740 96 9ms 23 May 2021 736th sleepyStick 740 96 16ms 3 Dec 2021 736th tterem 740 96 11ms 8 Jun 2022 736th P-Quentin 🇫🇷 740 96 12ms 3 Aug 2022 736th sbyrne51 740 96 9ms 1 Oct 2022 736th NerdyMcNerd42 740 96 10ms 27 Oct 2022 744th CheeseCake628 🇳🇴 739 89 471ms 17 Jan 2024 744th namelessiw 739 89 428ms 5 Mar 2024 746th DialFrost 🇸🇬 739 153 196ms 6 Nov 2025 747th jared-hughes 737 38 71ms 2 Aug 2022 747th Natanaelel 🇸🇪 737 38 50ms 25 Feb 2023 749th thisishowmymindworks 🇳🇴 737 91 19ms 5 Oct 2020 750th JRaspass 🇬🇧 736 64 138ms 26 Jul 2020 751st janbehrens 🇩🇪 736 76 3ms 29 Oct 2021 752nd Waffle3z 735 64 52ms 22 Jan 2021 752nd olivermrose 🇺🇸 735 64 41ms 3 Oct 2021 754th Irratix 🇳🇱 735 93 118ms 1 Nov 2021 755th GrayJoKing 🇦🇺 735 150 3ms 19 Nov 2025 756th GrayJoKing 🇦🇺 734 133 456ms 6 Jun 2022 757th Shanethegamer 🇺🇸 734 158 30ms 20 Sep 2023 758th MeWhenI 🇻🇦 733 77 239ms 29 Jan 2023 758th snoozingnewt 🇨🇦 733 77 6ms 13 Oct 2025 760th KrausRaus 🇺🇸 733 96 10ms 21 Dec 2021 761st asadullayev 732 97 13ms 3 Mar 2021 761st befoster 732 97 9ms 10 Apr 2021 761st myleopard 732 97 13ms 15 Oct 2021 761st Andrey135296 732 97 9ms 4 Apr 2022 761st Bodo171 732 97 15ms 25 Nov 2022 766th vgamula 🇺🇦 732 114 8ms 26 Jan 2024 767th annaproxy 730 155 349ms 1 Apr 2022 767th snoozingnewt 🇨🇦 730 155 396ms 13 Oct 2025 769th jared-hughes 726 104 13ms 27 Nov 2021 770th inventshah 726 110 2ms 12 Sep 2022 771st perlebach 🇨🇿 725 143 3,690ms 10 Jun 2025 772nd ehulinsky 🇺🇸 724 98 10ms 11 Nov 2021 772nd Trunksistor 🇫🇷 724 98 9ms 24 May 2022 772nd MichaelMBradley 🇨🇦 724 98 10ms 19 Jun 2022 775th Aurel300 🇨🇭 724 165 206ms 20 Jun 2024 776th primo-ppcg 🇹🇭 723 62 798ms 25 Aug 2020 777th gjoacorp 🇬🇧 723 172 2,903ms 4 Aug 2025 778th helbling 🇨🇭 721 93 9ms 29 May 2024 779th tomh1012 721 157 396ms 5 Sep 2025 780th albanian-laundromat 720 137 110ms 7 Nov 2025 781st KatieLG 🇬🇧 719 135 2ms 24 Sep 2021 781st emgordon154 719 135 3ms 21 Jun 2024 783rd roupiq 🇵🇱 719 173 2,947ms 26 Feb 2024 784th emgordon154 717 86 1,019ms 29 Jun 2024 785th vezzick 717 99 13ms 7 Mar 2021 785th TimHuisman1703 717 99 9ms 7 Jan 2022 785th hellwue 717 99 9ms 25 Feb 2022 785th davecame 717 99 10ms 2 Aug 2023 789th Shanethegamer 🇺🇸 717 158 419ms 9 Apr 2025 790th primo-ppcg 🇹🇭 717 171 383ms 29 Aug 2020 791st DialFrost 🇸🇬 716 85 11ms 7 Nov 2025 792nd TaserTheFox 🇺🇸 715 79 275ms 1 Jun 2023 793rd okaponta 715 167 231ms 11 Jan 2024 794th janbehrens 🇩🇪 714 85 13ms 29 Oct 2021 795th neihousaigaai 713 94 9ms 18 Apr 2021 795th emgordon154 713 94 9ms 24 Dec 2021 795th junkondo-jp 713 94 9ms 8 Jun 2024 795th Yax42 🇫🇷 713 94 11ms 5 Sep 2025 799th FlyingPenguin223 712 66 46ms 11 Nov 2024 800th ertz1ertz 712 159 403ms 14 Aug 2024 First Prev 721–800 of 1,861 Next Last