The Calendar hole will go live in approximately 16 hours. Why not try and solve it ahead of time?
Niven 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 145th CedricGebistorf 936 47 9ms 11 Mar 2022 145th tkr-sh 🇰🇵 936 47 11ms 12 May 2022 145th wen1now 936 47 9ms 8 Aug 2022 145th betaveros 936 47 10ms 9 Aug 2022 145th 5quiwyrm 936 47 9ms 16 Aug 2022 145th Eilonlif 🇮🇱 936 47 9ms 3 Sep 2022 145th commandblockguy 🇺🇸 936 47 9ms 18 Sep 2022 145th aiarzhantsev 936 47 12ms 14 Oct 2022 145th nstearns96 🇬🇧 936 47 11ms 6 Jan 2023 145th quimey 936 47 9ms 8 Mar 2023 145th aksyristos 936 47 9ms 11 Mar 2023 145th ejini6969 936 47 11ms 25 Mar 2023 145th 2011-Chan-Ethan 936 47 9ms 19 Jul 2023 145th Griff95 936 47 11ms 21 Sep 2023 145th firegene 🇮🇪 936 47 9ms 15 Oct 2023 145th mikehanus 936 47 9ms 29 Jan 2024 145th ThijsLuttikhuis 936 47 9ms 6 Mar 2024 145th markusgraube 936 47 9ms 9 Mar 2024 145th AminurAlam 936 47 9ms 20 Mar 2024 145th SB-945 936 47 9ms 31 Mar 2024 145th tri1212 🇻🇳 936 47 9ms 15 Jul 2024 145th codingisgreatbutiamnot 936 47 9ms 20 Jul 2024 145th Terobero 936 47 12ms 23 Aug 2024 145th LostSyntax21 🇬🇧 936 47 9ms 3 Sep 2024 145th KingSkyrock 🇺🇸 936 47 10ms 14 Oct 2024 145th Stockoh 🇫🇷 936 47 11ms 17 Nov 2024 145th Europe2048 936 47 9ms 26 Nov 2024 145th CLOStrophobic 🇮🇹 936 47 9ms 20 Jan 2025 145th agreegious 936 47 10ms 16 Mar 2025 145th moustave 936 47 9ms 11 Apr 2025 145th zacjl 936 47 10ms 3 Jul 2025 145th RaBa21 🇭🇺 936 47 11ms 18 Jul 2025 145th janlelis 936 47 9ms 15 Aug 2025 145th LordSir101 936 47 9ms 18 Aug 2025 145th Emutis 🇱🇹 936 47 11ms 15 Sep 2025 145th Lv0Sys 🇵🇱 936 47 10ms 1 Dec 2025 197th gilufin 917 48 9ms 30 May 2021 197th yzhs 🇩🇪 917 48 11ms 20 Jul 2022 197th levavft 917 48 9ms 26 Oct 2023 197th jlevis10 917 48 9ms 11 Dec 2023 197th Just4FunCoder 917 48 11ms 17 Feb 2024 197th imelxr 🇮🇱 917 48 12ms 15 Aug 2024 197th RedzGoose 🇦🇺 917 48 9ms 20 Oct 2024 197th maxgodfrey2004 🇨🇦 917 48 9ms 12 Jan 2025 197th bltnppcnt 917 48 9ms 10 Apr 2025 197th FortuiteMan 🇫🇷 917 48 10ms 1 Oct 2025 207th hiddicop 🇸🇪 898 49 9ms 26 Jan 2021 207th itsjustfreekie 898 49 9ms 22 Sep 2021 207th voytxt 🇨🇿 898 49 10ms 20 Mar 2022 210th myfatemi04 880 50 9ms 14 Jul 2018 210th Constructor7 880 50 8ms 29 Aug 2018 210th ionutm82 880 50 9ms 8 Nov 2018 210th ANDREYDEN 880 50 10ms 8 Jan 2019 210th ly0va 880 50 9ms 12 Jan 2019 210th pecom 880 50 9ms 6 Jun 2019 210th dahrens 880 50 9ms 6 Jul 2019 210th iatzx 880 50 9ms 25 Jul 2019 210th mafaldafalcaotvf 880 50 10ms 27 Apr 2020 210th devRND-ess 880 50 9ms 29 Apr 2020 210th geofft 880 50 9ms 11 Dec 2020 210th HerLovelyTentacles 880 50 9ms 4 Feb 2021 210th jjbvtk 880 50 9ms 4 Sep 2021 210th pengu1n-master 880 50 9ms 11 Oct 2021 210th CodyMiner 880 50 9ms 11 Nov 2021 210th hiichbindermax 880 50 10ms 1 Mar 2022 210th MichaelMBradley 🇨🇦 880 50 8ms 18 Apr 2022 210th jaxmattfair 🇺🇸 880 50 9ms 9 Aug 2022 210th eddvrs 880 50 9ms 19 Aug 2022 210th argusdusty 🇺🇸 880 50 9ms 21 Aug 2022 210th OleBrumm 880 50 9ms 31 Aug 2022 210th vishwathg 880 50 9ms 16 Sep 2022 210th bonevbs 880 50 9ms 20 Nov 2022 210th ordinary-slim 880 50 10ms 20 Nov 2022 210th mathb0y512 880 50 9ms 26 Nov 2022 210th 1231234md5 🇨🇳 880 50 9ms 8 Jan 2024 210th jamesthekee 880 50 9ms 28 Jan 2025 210th souta-1326 880 50 9ms 23 Mar 2025 210th 40fied4t 880 50 9ms 15 May 2025 210th qwertyuiop3 🇷🇺 880 50 9ms 4 Jun 2025 210th FEZfan 🇦🇺 880 50 9ms 9 Jul 2025 First Prev 161–240 of 910 Next Last