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 560th m-tkach 🇺🇦 767 56 577ms 24 May 2024 560th Lv0Sys 🇵🇱 767 56 1,273ms 14 days ago 563rd Yewzir 🇧🇪 767 162 2,711ms 3 Feb 2023 564th emgordon154 766 194 253ms 18 Jan 2025 565th rak1507 🇬🇧 765 79 9ms 31 Dec 2020 565th hiddicop 🇸🇪 765 79 9ms 29 Jan 2021 565th kops-cg 765 79 9ms 6 Apr 2021 565th Frowny 765 79 10ms 11 Nov 2021 565th janbehrens 🇩🇪 765 79 10ms 17 Jun 2023 565th tobyLovick 765 79 9ms 26 Dec 2023 565th NickTheEASDude 🇺🇸 765 79 10ms 29 Jan 2024 572nd Alessandro-Balconi 🇮🇹 764 79 88ms 15 Jul 2023 573rd 5quiwyrm 762 74 267ms 9 Dec 2024 574th StarmaQ 762 99 2ms 22 Jan 2021 574th edsrzf 🇳🇿 762 99 1ms 30 May 2025 576th lynn 762 126 128ms 19 May 2021 577th msbranicky 762 195 263ms 31 Aug 2023 578th tomtheisen 🇺🇸 761 88 9ms 3 Oct 2020 578th targrik 761 88 584ms 13 May 2025 580th DialFrost 🇸🇬 760 157 136ms 7 Nov 2025 581st kkoenig 758 196 264ms 7 Sep 2025 582nd prplz 🇦🇺 757 56 68ms 28 Jul 2020 582nd primo-ppcg 🇹🇭 757 56 186ms 15 Sep 2020 584th TobyBoyne 🇬🇧 756 80 10ms 31 Dec 2020 584th BrenSchaap 756 80 10ms 21 Oct 2021 584th NicoAdams 756 80 10ms 1 Dec 2021 584th Jacob385 756 80 4,226ms 14 Mar 2024 584th Languag3 756 80 9ms 28 Feb 2025 589th 2bular 755 46 3ms 24 Jun 2025 590th janbehrens 🇩🇪 755 93 4ms 29 Oct 2021 591st jared-hughes 753 165 3,451ms 24 Jun 2022 591st snyderek 🇺🇸 753 165 3,063ms 18 Dec 2024 593rd JRaspass 🇬🇧 752 59 138ms 26 Jul 2020 594th ToriTheChicken 752 89 20ms 26 Jul 2020 594th thisishowmymindworks 🇳🇴 752 89 19ms 26 Jul 2020 594th prplz 🇦🇺 752 89 474ms 9 Oct 2021 597th anter69 🇭🇺 751 82 827ms 17 Sep 2024 597th Shanethegamer 🇺🇸 751 82 75ms 8 Dec 2024 597th edsrzf 🇳🇿 751 82 65ms 31 Jul 2025 600th edsrzf 🇳🇿 751 163 420ms 26 Sep 2025 600th CaedenHarper 🇨🇦 751 163 449ms 9 Oct 2025 602nd saltysylvi 750 36 36ms 5 Aug 2022 603rd emgordon154 750 130 385ms 6 Nov 2025 604th Dazza314 🇬🇧 746 81 14ms 3 Nov 2020 604th AkashTandon167 746 81 10ms 15 Nov 2020 604th cbondurant 746 81 12ms 10 May 2021 604th knutae 🇳🇴 746 81 10ms 6 Dec 2021 604th CutSandstone 746 81 9ms 8 Jul 2024 604th Pyroan 746 81 10ms 13 May 2025 604th BrunoVisnadi 🇧🇷 746 81 10ms 20 Oct 2025 611th nwellnhof 🇩🇪 744 57 46ms 28 Oct 2021 611th GrayJoKing 🇦🇺 744 57 53ms 30 Nov 2023 611th DialFrost 🇸🇬 744 57 155ms 1 Jun 2024 614th emgordon154 744 90 10ms 1 Aug 2024 615th ovs-code 🇩🇪 743 104 10ms 11 Dec 2023 616th GrayJoKing 🇦🇺 743 156 38ms 4 Jan 2023 617th jtaxen 742 92 117ms 19 Jun 2024 618th janbehrens 🇩🇪 740 58 530ms 1 Nov 2021 618th Shanethegamer 🇺🇸 740 58 762ms 17 Feb 2023 620th retrohun 740 82 2ms 9 Nov 2022 621st scpchicken 🇵🇼 739 60 156ms 2 Feb 2022 622nd DialFrost 🇸🇬 738 153 196ms 6 Nov 2025 623rd lukasthaler 737 82 12ms 11 Sep 2020 623rd HumanEquivalentUnit 737 82 10ms 12 Oct 2020 623rd stordev 737 82 611ms 26 Feb 2021 623rd lemogne 737 82 9ms 10 Aug 2021 623rd j-Ewan 737 82 13ms 11 Mar 2022 623rd TheoKeller1 737 82 16ms 6 Jun 2023 623rd Andriamanitra 🇫🇮 737 82 9ms 26 Jul 2023 623rd dirckvdende 737 82 10ms 21 Jul 2025 631st cywong-amino 🇭🇰 736 91 9ms 30 Jul 2020 631st Shanethegamer 🇺🇸 736 91 9ms 10 Mar 2022 631st dmrichwa 🇺🇸 736 91 9ms 4 Oct 2022 634th MeWhenI 🇻🇦 736 105 10ms 9 May 2024 635th Irratix 🇳🇱 734 93 118ms 1 Nov 2021 636th GrayJoKing 🇦🇺 734 150 3ms 19 Nov 2025 637th GrayJoKing 🇦🇺 733 133 456ms 6 Jun 2022 638th Shanethegamer 🇺🇸 733 158 30ms 20 Sep 2023 639th MeWhenI 🇻🇦 732 77 239ms 29 Jan 2023 640th olivermrose 🇺🇸 731 58 43ms 3 Oct 2021 First Prev 561–640 of 1,844 Next Last