The Calendar hole will go live in approximately 11 days. Why not try and solve it ahead of time?
Lucky Numbers in Python 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 81st SB-945 800 65 11ms 3 Jul 2023 81st dokutan 800 65 12ms 24 Feb 2025 81st robin-scragg 800 65 11ms 4 Aug 2025 84th CarsonChr 🇺🇸 788 66 10ms 24 Sep 2022 84th jatloe 788 66 10ms 6 Sep 2024 86th za3k 776 67 11ms 12 Oct 2022 86th Just4FunCoder 776 67 11ms 26 Nov 2022 86th KatieLG 🇬🇧 776 67 59ms 29 Jul 2024 89th Irratix 🇳🇱 765 68 98ms 23 Apr 2022 89th 2011-Chan-Ethan 765 68 54ms 20 Jul 2023 89th HumanoidCPU 765 68 55ms 27 May 2024 89th agreegious 765 68 118ms 16 Mar 2025 93rd thehylian 743 70 36ms 2 Jan 2023 94th Frowny 732 71 11ms 1 Mar 2022 94th Eilonlif 🇮🇱 732 71 114ms 12 Mar 2023 96th bob-th 722 72 12ms 2 Aug 2024 97th NewDefectus 🇮🇱 712 73 57ms 29 Apr 2022 97th AlephSquirrel 712 73 11ms 28 Jan 2023 97th fourth-bit 712 73 11ms 11 Jul 2023 97th neihousaigaai 712 73 35ms 22 Oct 2024 97th csharpython 712 73 107ms 18 Jul 2025 102nd minhtrancccp 703 74 11ms 11 Jan 2024 102nd albanian-laundromat 703 74 3,659ms 29 Apr 2025 104th suwat513 693 75 10ms 20 Sep 2022 104th ahmetdemirag 🇨🇾 693 75 10ms 6 Mar 2025 106th Indivicivet 684 76 11ms 9 May 2022 106th nstearns96 🇬🇧 684 76 31ms 9 Jan 2023 106th TaserTheFox 🇺🇸 684 76 11ms 16 Feb 2023 106th cros107 🇦🇺 684 76 11ms 19 Aug 2023 106th cingulataluke 684 76 48ms 29 Aug 2023 106th stertooy 🇧🇪 684 76 10ms 15 Jun 2024 106th hiichbindermax 684 76 11ms 22 Jun 2024 106th wh3n3v3r 🇨🇿 684 76 24ms 12 Nov 2024 106th Flekay 🇩🇪 684 76 13ms 10 Jul 2025 106th qpwoeirut 684 76 11ms 19 Sep 2025 116th Anonymousellama21 675 77 12ms 15 Jun 2022 116th betaveros 675 77 11ms 1 Jan 2023 116th quimey 675 77 10ms 15 Mar 2023 116th thienudomsrirungruang 675 77 30ms 7 May 2024 120th knutae 🇳🇴 667 78 14ms 9 Mar 2022 120th jhpaques 🇫🇷 667 78 11ms 29 Jul 2022 120th marcin7Cd 667 78 12ms 2 Sep 2022 120th hellwue 667 78 10ms 28 Apr 2023 120th davecame 667 78 11ms 7 Nov 2023 120th yuchuehw 667 78 38ms 28 Jan 2024 126th ehulinsky 🇺🇸 658 79 30ms 10 May 2023 126th FlorianCassayre 🇫🇷 658 79 202ms 18 Sep 2023 126th luuumine 🇫🇷 658 79 10ms 26 Oct 2025 129th martinnorling 🇸🇪 650 80 11ms 2 Mar 2022 129th yzhs 🇩🇪 650 80 12ms 3 Jun 2022 129th CheeseCake628 🇳🇴 650 80 13ms 22 Dec 2023 129th logvp 650 80 10ms 22 Nov 2024 129th kistlerf 🇨🇭 650 80 11ms 30 May 2025 134th Trunksistor 🇫🇷 642 81 13ms 20 May 2022 134th RYNO8 642 81 52ms 18 Aug 2022 134th tuffnatty 🇩🇪 642 81 49ms 19 Jul 2023 134th ssbhatt4321 642 81 23ms 14 Oct 2023 134th CutSandstone 642 81 10ms 19 Jul 2024 134th Mikey-Beep 🇬🇧 642 81 53ms 13 Aug 2025 140th bobbysq 634 82 53ms 21 Dec 2022 140th mbittner20 634 82 11ms 27 May 2023 142nd OllieBoyne 🇬🇧 619 84 85ms 25 May 2022 142nd fredrik-bakke 🇳🇴 619 84 54ms 5 Oct 2022 142nd Lv0Sys 🇵🇱 619 84 14ms 14 days ago 145th MichalMarsalek 🇨🇿 612 85 68ms 1 Mar 2022 145th rak1507 🇬🇧 612 85 11ms 21 May 2022 145th LeeCamp 612 85 90ms 11 Jan 2023 145th Terobero 612 85 10ms 23 Aug 2024 145th Deedogg 612 85 41ms 30 Oct 2025 150th AkashTandon167 605 86 11ms 18 Mar 2022 150th yokasuretsu 605 86 11ms 7 Jan 2025 152nd msbranicky 598 87 18ms 23 Jul 2023 153rd guilhem-roy 🇫🇷 591 88 91ms 1 Mar 2022 153rd michelebastione 🇮🇹 591 88 83ms 2 Mar 2022 155th Troon 584 89 39ms 29 Sep 2022 155th b10011 🇫🇮 584 89 35ms 8 Jan 2023 155th AbhilashaTandon 584 89 11ms 24 Sep 2023 155th eddvrs 584 89 10ms 20 Dec 2023 159th jfallon1997 578 90 31ms 7 Sep 2022 159th xDragoxboi 578 90 12ms 30 Jun 2025 First Prev 81–160 of 248 Next Last