The Calendar hole will go live in approximately 7 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 156th Steffan153 🇫🇮 926 71 498ms 16 Jan 2024 156th orthoplex 🇨🇽 926 71 558ms 22 Jan 2024 156th xsot 🇸🇬 926 71 498ms 28 Jan 2024 156th sisyphus-ppcg 🇦🇺 926 71 490ms 28 Jan 2024 156th Yewzir 🇧🇪 926 71 354ms 4 Feb 2024 156th neel11235813 926 71 372ms 27 Mar 2024 156th dokutan 926 71 482ms 8 Jun 2024 156th Shanethegamer 🇺🇸 926 71 399ms 13 Jun 2024 156th CaedenHarper 🇨🇦 926 71 482ms 3 Sep 2024 156th b-illy 🇬🇧 926 71 368ms 7 Sep 2024 156th emgordon154 926 71 359ms 26 Nov 2024 156th sean-niemann 🇺🇸 926 71 480ms 12 Mar 2025 156th fuzzylojik-golf 🇺🇸 926 71 366ms 13 Jun 2025 174th Steffan153 🇫🇮 925 61 4ms 12 Aug 2024 174th ovs-code 🇩🇪 925 61 798ms 19 Aug 2024 174th btnlq 925 61 345ms 19 Aug 2024 174th sean-niemann 🇺🇸 925 61 4ms 11 Jan 2025 178th primo-ppcg 🇹🇭 925 76 424ms 9 Jun 2024 178th xsot 🇸🇬 925 76 11ms 30 Aug 2024 180th janlelis 922 51 54ms 11 Nov 2021 180th Lydxn 🇨🇦 922 51 38ms 18 Dec 2021 182nd primo-ppcg 🇹🇭 922 66 962ms 12 Nov 2022 182nd xsot 🇸🇬 922 66 83ms 30 Aug 2024 184th yuriy-chervinka 922 77 10ms 30 Mar 2021 184th b10011 🇫🇮 922 77 9ms 16 Jan 2023 184th edsrzf 🇳🇿 922 77 9ms 13 Apr 2025 184th luuumine 🇫🇷 922 77 9ms 14 Oct 2025 188th ovs-code 🇩🇪 921 67 102ms 12 Sep 2024 188th JayXon 🇺🇸 921 67 885ms 28 Jul 2025 190th btnlq 921 82 20ms 27 Dec 2022 191st btnlq 920 123 570ms 15 May 2024 192nd saito-ta 🇯🇵 919 66 3ms 6 Aug 2024 193rd rhdqor213 919 115 9ms 17 Dec 2024 194th ovs-code 🇩🇪 916 66 86ms 27 May 2024 195th Lydxn 🇨🇦 916 74 73ms 21 May 2022 195th JayXon 🇺🇸 916 74 76ms 6 Apr 2023 195th albanian-laundromat 916 74 99ms 19 hours ago 198th DialFrost 🇸🇬 914 134 346ms 9 Nov 2025 199th GolfingSuccess 🇬🇷 913 72 490ms 20 Jan 2024 199th SirBogman 🇺🇸 913 72 489ms 20 Jan 2024 199th AlephSquirrel 913 72 370ms 21 Jan 2024 199th ridingqwerty 🇺🇸 913 72 500ms 29 Jan 2024 199th duckyluuk 🇳🇱 913 72 489ms 27 Mar 2024 199th MeWhenI 🇻🇦 913 72 537ms 24 May 2024 199th lifthrasiir 🇰🇷 913 72 347ms 2 Dec 2024 199th CornerMercury 🇬🇧 913 72 492ms 12 Oct 2025 199th albanian-laundromat 913 72 501ms 12 Oct 2025 199th Babafaba 913 72 553ms 31 Oct 2025 209th targrik 913 77 2,101ms 28 Jan 2025 210th tomtheisen 🇺🇸 913 124 354ms 14 May 2024 211th JayXon 🇺🇸 912 131 199ms 24 Nov 2025 212th prplz 🇦🇺 911 62 1,497ms 28 Jul 2020 212th btnlq 911 62 500ms 19 Dec 2020 212th nwellnhof 🇩🇪 911 62 1,473ms 28 Oct 2021 212th juliansiebert 🇩🇪 911 62 1,426ms 11 Feb 2024 216th lukegustafson 🇺🇸 911 70 547ms 8 Oct 2024 217th emgordon154 910 62 4ms 1 Sep 2024 218th itiievskyi 🇺🇦 910 78 14ms 28 Jul 2020 218th bastienvoirin 🇫🇷 910 78 9ms 30 Nov 2020 218th btjones0 910 78 9ms 31 Dec 2020 218th RDShah 910 78 9ms 15 Apr 2021 218th CedricGebistorf 910 78 11ms 12 Mar 2022 218th MaxElf999 910 78 10ms 23 Sep 2022 218th randolchance 910 78 10ms 5 Mar 2023 218th tobeannouncd 910 78 10ms 19 Sep 2023 218th logvp 910 78 9ms 27 Dec 2023 218th croc54 910 78 10ms 28 Nov 2024 228th IanUtley 910 83 13ms 29 Sep 2023 228th ovs-code 🇩🇪 910 83 114ms 29 Jun 2024 230th edsrzf 🇳🇿 909 82 4ms 24 Nov 2024 231st DaDerpDuck 909 83 25ms 22 Jan 2021 231st Waffle3z 909 83 5ms 22 Jan 2021 231st GrayJoKing 🇦🇺 909 83 5ms 10 Mar 2023 234th nwellnhof 🇩🇪 908 135 431ms 25 Sep 2025 235th ovs-code 🇩🇪 908 137 590ms 7 Jun 2024 236th GrayJoKing 🇦🇺 907 68 72ms 13 Sep 2024 236th primo-ppcg 🇹🇭 907 68 65ms 5 Apr 2025 238th lyphyser 907 80 63ms 25 Jan 2024 239th btnlq 907 88 1,815ms 8 Oct 2022 239th JayXon 🇺🇸 907 88 1,738ms 8 Oct 2022 First Prev 161–240 of 1,861 Next Last