The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Happy 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 241st za3k 575 106 12ms 9 Oct 2022 241st jamesthekee 575 106 16ms 25 Jan 2025 241st kistlerf 🇨🇭 575 106 23ms 16 May 2025 244th eshilo-draper 570 107 23ms 18 Nov 2022 244th Ythaenagor 570 107 22ms 5 Aug 2024 246th petroselo 565 108 21ms 29 Dec 2021 246th QuincyNash 🇺🇸 565 108 330ms 6 Dec 2022 246th jumelet 🇳🇱 565 108 20ms 13 Dec 2022 246th ZoeMcG 565 108 14ms 8 Jan 2023 246th BREMAUCY 🇫🇷 565 108 22ms 26 Jul 2025 251st MichaelMBradley 🇨🇦 560 109 19ms 11 Jun 2022 251st SniperSmiley 🇺🇸 560 109 20ms 12 Jun 2022 251st sultan 560 109 17ms 2 Apr 2024 254th Bodo171 555 110 148ms 29 Nov 2022 254th Raphsinai 555 110 13ms 23 May 2023 254th 40fied4t 555 110 13ms 21 May 2025 257th hellwue 550 111 19ms 25 Feb 2022 257th vodker1 550 111 22ms 8 Mar 2022 257th chriscianfarani 550 111 17ms 11 Aug 2022 260th mathisfun271 545 112 497ms 23 Oct 2021 260th Pena86 545 112 14ms 2 Jan 2022 260th 123mjb 545 112 17ms 26 Jun 2025 263rd Kasci 540 113 291ms 28 Dec 2021 263rd berdzi 540 113 13ms 8 Mar 2022 263rd Omega65536 🇩🇪 540 113 12ms 29 Nov 2022 263rd epic-programmer-guy 540 113 19ms 26 Dec 2023 263rd CutSandstone 540 113 26ms 5 Jul 2024 268th TobyBoyne 🇬🇧 535 114 19ms 27 Jul 2022 268th jfallon1997 535 114 26ms 16 May 2024 268th herbroot 535 114 3,666ms 19 Jun 2025 271st Skwerl23 530 115 21ms 3 Feb 2023 271st CheeseCake628 🇳🇴 530 115 14ms 19 Mar 2023 271st aalec 530 115 489ms 24 Apr 2024 274th michelebastione 🇮🇹 526 116 16ms 9 Oct 2021 274th clayboll99 526 116 12ms 11 Jul 2025 274th Andre3582 526 116 18ms 10 Oct 2025 277th rowboat1 521 117 15ms 21 Jun 2022 277th AGoyet 521 117 285ms 29 Jun 2022 279th ArmaanAS 517 118 23ms 29 Nov 2021 279th JesseNoEyes 🇺🇸 517 118 13ms 25 Sep 2024 279th madeforlosers 517 118 23ms 7 Nov 2025 282nd midnattssol 🇸🇪 513 119 19ms 27 Jul 2023 282nd MassimoParisi 513 119 23ms 25 Sep 2024 284th AbelPelser 508 120 16ms 2 Jul 2022 284th mbittner20 508 120 15ms 27 May 2023 284th WillowWispy 508 120 22ms 25 May 2025 284th Deedogg 508 120 24ms 24 Oct 2025 288th hiichbindermax 504 121 19ms 26 Feb 2022 289th Trunksistor 🇫🇷 500 122 23ms 12 Apr 2022 290th jiaminglimjm 🇲🇾 496 123 23ms 25 Mar 2023 290th brimstonetrader 496 123 21ms 18 Dec 2023 290th 0dyse 496 123 16ms 29 Apr 2025 293rd sleepyStick 488 125 31ms 11 Mar 2022 293rd AliceFord 488 125 18ms 2 Jun 2022 293rd osNiko 🇧🇷 488 125 23ms 29 Jul 2025 296th MichalMarsalek 🇨🇿 484 126 11ms 29 Aug 2022 296th celiendonze 🇨🇭 484 126 16ms 25 Apr 2023 296th qwjhvbxi 484 126 100ms 8 Feb 2024 296th TheZwierzLF 🇵🇱 484 126 95ms 25 May 2025 300th b4dpxl 480 127 18ms 10 Nov 2021 300th jameswmccarty 480 127 22ms 10 Jul 2024 302nd Evan-Robotics 477 128 20ms 26 Jan 2022 302nd eddvrs 477 128 42ms 22 Dec 2023 302nd therealnumbers 477 128 15ms 30 May 2024 305th jhpaques 🇫🇷 473 129 20ms 29 Jul 2022 305th shibacho 🇯🇵 473 129 26ms 25 Nov 2022 305th jstechman 473 129 15ms 9 Mar 2024 308th LukasFolwarczny 🇨🇿 469 130 22ms 16 Sep 2022 308th gareth-kmet 469 130 22ms 3 Mar 2023 308th Tess2662 469 130 382ms 4 Mar 2023 311th ThatAlo 466 131 17ms 27 Jan 2023 312th Techdude01 452 135 22ms 17 Dec 2022 312th dalamajama 452 135 13ms 17 Aug 2023 312th julian-hoelz 452 135 14ms 15 Sep 2024 315th ComputerKWasTaken 🇺🇸 445 137 20ms 8 Jun 2024 315th hamilton-bonds 445 137 14ms 12 Nov 2024 317th mm-news 442 138 303ms 1 Dec 2022 317th DrPrettyman 442 138 16ms 1 Jun 2023 319th kevdah 439 139 20ms 5 Oct 2022 319th mrmena 🇦🇺 439 139 19ms 16 Apr 2024 First Prev 241–320 of 382 Next Last
