The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Odious Numbers (Long) 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 221st Bmrl7 804 51 10ms 29 Feb 2024 221st Stockoh 🇫🇷 804 51 17ms 19 Jun 2024 221st madex 🇩🇪 804 51 10ms 11 Jul 2024 221st adoxography 804 51 16ms 1 Sep 2025 221st GeneralPoxter 804 51 10ms 24 Sep 2025 246th OllieBoyne 🇬🇧 788 52 15ms 6 Sep 2022 246th galloj 🇨🇿 788 52 16ms 7 Sep 2022 246th martinnorling 🇸🇪 788 52 9ms 9 Sep 2022 246th ZakkkkAttackkkk 🇵🇭 788 52 10ms 10 Sep 2022 246th guilhem-roy 🇫🇷 788 52 16ms 12 Sep 2022 246th TimLeffke 788 52 10ms 13 Sep 2022 246th nichollsharrisonj 788 52 15ms 16 Sep 2022 246th jhpaques 🇫🇷 788 52 10ms 17 Sep 2022 246th TobyBoyne 🇬🇧 788 52 10ms 19 Sep 2022 246th Kloppermand 🇩🇰 788 52 10ms 3 Oct 2022 246th andre-lameirinhas 🇵🇹 788 52 15ms 12 Oct 2022 246th georgehulme 788 52 16ms 12 Oct 2022 246th Troon 788 52 11ms 19 Oct 2022 246th TheBlupper 788 52 10ms 10 Nov 2022 246th Fishron 788 52 16ms 29 Nov 2022 246th Heathcorp 🇦🇺 788 52 11ms 8 Dec 2022 246th ItsMeNoobieboy 788 52 10ms 23 Dec 2022 246th PATTRIM 788 52 16ms 25 Dec 2022 246th betaveros 788 52 10ms 31 Dec 2022 246th Techdude01 788 52 16ms 6 Jan 2023 246th b10011 🇫🇮 788 52 10ms 8 Jan 2023 246th LeeCamp 788 52 16ms 16 Jan 2023 246th kaptsanovb 788 52 9ms 4 Feb 2023 246th j-Ewan 788 52 10ms 9 Feb 2023 246th vincintz 788 52 10ms 7 Mar 2023 246th zbreit 🇺🇸 788 52 10ms 2 May 2023 246th ehulinsky 🇺🇸 788 52 11ms 8 May 2023 246th TheoKeller1 788 52 16ms 11 Jun 2023 246th fizhes 788 52 17ms 18 Jun 2023 246th jtaxen 788 52 11ms 22 Jun 2023 246th midnattssol 🇸🇪 788 52 10ms 27 Jul 2023 246th cingulataluke 788 52 11ms 29 Aug 2023 246th ahegewald 788 52 9ms 11 Oct 2023 246th inverseLorentz 🇦🇺 788 52 10ms 13 Oct 2023 246th taesungh 788 52 10ms 15 Oct 2023 246th eiburns 788 52 10ms 24 Oct 2023 246th bsoyka 🇺🇸 788 52 10ms 26 Nov 2023 246th ridingqwerty 🇺🇸 788 52 10ms 29 Nov 2023 246th mathisfun271 788 52 9ms 24 Dec 2023 246th VictorStenvers 🇳🇱 788 52 11ms 30 Jan 2024 246th FCORMERAIS 788 52 10ms 7 Mar 2024 246th Ralac07 🇦🇺 788 52 10ms 12 Jun 2024 246th jiaminglimjm 🇲🇾 788 52 10ms 6 Jul 2024 246th cyxv 788 52 11ms 26 Jul 2024 246th Mathrew2012 788 52 10ms 15 Aug 2024 246th EnTerr 788 52 16ms 1 Sep 2024 246th NanduBC 788 52 10ms 3 Sep 2024 246th FernSchoenberg 788 52 10ms 15 Oct 2024 246th Alex-Huggett 🇬🇧 788 52 20ms 22 Oct 2024 246th gallium-gonzollium 788 52 10ms 2 Nov 2024 246th quarl 788 52 16ms 13 Nov 2024 246th croc54 788 52 16ms 16 Jan 2025 246th ImpressedByRocks 788 52 10ms 17 Jan 2025 246th Emutis 🇱🇹 788 52 10ms 4 Feb 2025 246th kistlerf 🇨🇭 788 52 16ms 16 May 2025 246th 40fied4t 788 52 10ms 22 May 2025 246th osNiko 🇧🇷 788 52 17ms 15 Aug 2025 246th robin-scragg 788 52 9ms 17 Aug 2025 246th katss2 788 52 10ms 17 Aug 2025 305th NerdyMcNerd42 774 53 10ms 10 Sep 2022 305th fredrik-bakke 🇳🇴 774 53 39ms 2 Oct 2022 305th za3k 774 53 10ms 9 Oct 2022 305th shibacho 🇯🇵 774 53 11ms 21 Oct 2022 305th NDR0216 🇹🇼 774 53 10ms 3 Feb 2023 305th ashtraypettingzoo 🇺🇸 774 53 9ms 11 Feb 2023 305th kyleclaassen 774 53 9ms 28 May 2023 305th epic-programmer-guy 774 53 10ms 20 Dec 2023 305th yuchuehw 774 53 10ms 13 Feb 2024 305th CutSandstone 774 53 10ms 2 Jul 2024 305th azure-blondon 774 53 10ms 2 Jul 2024 305th mm1013g 774 53 16ms 6 Sep 2024 305th Schreipfelerer 774 53 38ms 10 Sep 2024 305th 0dyse 774 53 20ms 23 Apr 2025 305th vgamula 🇺🇦 774 53 10ms 15 Jul 2025 305th TheAtrossian 774 53 12ms 17 days ago First Prev 241–320 of 472 Next Last