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 bytes. 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 Bytes Time Submitted 318th TJK-S 514 140 13ms 22 Oct 2025 322nd lovernj 511 141 21ms 9 Feb 2022 322nd 104210 511 141 15ms 11 May 2022 324th DGipe 507 142 14ms 4 Mar 2024 325th brochmann 🇸🇪 500 144 12ms 6 Feb 2022 325th SURAJMITTAL 500 144 15ms 20 Dec 2024 327th pengu1n-master 497 145 21ms 11 Oct 2021 327th pde-bakk 🇳🇱 497 145 19ms 23 Oct 2023 329th tpasfieldERAU 493 146 14ms 6 Nov 2022 330th twocatsinatrenchcoat 490 147 11ms 18 Nov 2022 330th Pale-Vessel 490 147 15ms 7 Mar 2024 332nd Florian-Mt 486 148 22ms 26 Sep 2023 333rd arjunarya1 483 149 15ms 11 Sep 2025 334th cingulataluke 480 150 19ms 28 Aug 2023 334th bac0id 480 150 20ms 27 Sep 2023 336th CameronGBell 474 152 15ms 7 Mar 2022 336th mdnestor 474 152 22ms 28 Dec 2022 336th MCausc78 🇺🇦 474 152 13ms 2 Jan 2023 336th PikeIt 474 152 21ms 27 Jun 2023 336th sacredeux 474 152 14ms 20 Aug 2024 341st TheLazySquid 468 154 15ms 5 Jan 2023 342nd Vaekor 465 155 13ms 3 Aug 2023 343rd OppositeShark 456 158 14ms 19 Jul 2022 344th ridingqwerty 🇺🇸 453 159 19ms 6 Dec 2023 344th j3mak 453 159 17ms 17 Jan 2024 344th Gopalkataria 🇮🇳 453 159 14ms 6 Mar 2025 347th NoneTheFewer 450 160 38ms 14 days ago 348th markbyrne 447 161 12ms 21 Nov 2021 349th Ugoran 442 163 14ms 1 Dec 2022 350th hotmanga 419 172 12ms 8 Nov 2023 351st Unknownuserfrommars 396 182 17ms 20 Nov 2024 352nd dylanjones92 389 185 11ms 17 Jan 2024 353rd Fmbalbuena 383 188 19ms 3 Nov 2021 353rd BLD933 🇲🇦 383 188 19ms 2 Sep 2023 355th jmmographer 381 189 25ms 21 Oct 2023 356th Bananapants22 379 190 16ms 27 Aug 2022 357th AbuzarN 373 193 12ms 4 Oct 2023 358th Jacob-Gendelman 362 199 19ms 28 Jul 2023 359th WillowBee7 360 200 12ms 20 Mar 2023 359th AidanWalter 360 200 14ms 3 Jan 2025 361st Upload-and-View 🇺🇦 351 205 11ms 9 Aug 2025 362nd shinylego 348 207 17ms 14 Sep 2022 363rd itljan30 332 217 16ms 6 Oct 2024 364th atazzam 🇺🇸 327 220 17ms 2 Apr 2022 365th raksince2002 317 227 15ms 16 Sep 2023 365th abhyudaya633 317 227 13ms 2 Apr 2024 367th kevinnaviapaiva 314 229 11ms 13 Feb 2025 368th fl3ur1nestimable 299 241 15ms 3 Apr 2022 369th Sanjaybalaguru 290 248 14ms 16 Sep 2023 370th PrestonWin 287 251 11ms 20 Nov 2021 371st JeromeChristopherJ 285 253 13ms 16 Sep 2023 372nd ariesmarinus 265 272 15ms 27 Nov 2024 373rd Zhenyu-Bo 235 307 15ms 1 Aug 2025 374th ffelixm 229 314 9ms 12 Jun 2025 375th Adam-Dhayfa 156 462 13ms 16 Sep 2023 376th retrohun 128 564 9ms 27 Dec 2022 376th zyc-2024 🇨🇳 128 564 9ms 5 Oct 2024 376th katss2 128 564 9ms 20 Aug 2025 376th SectorCorruptor 128 564 9ms 21 Sep 2025 376th kurkale6ka 128 564 9ms 8 days ago 381st KatieLG-Transpiler 🇬🇧 103 702 9ms 23 Jun 2022 381st zt14427 103 702 9ms 18 Nov 2023 First Prev 321–382 of 382
