The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Happy 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 641st tombs4 286 168 12ms 8 Jun 2020 642nd YoungjuneKwon 282 170 10ms 6 Dec 2018 643rd hotmanga 281 171 9ms 7 Nov 2023 643rd xbxbxb007 281 171 10ms 10 Jan 2024 645th janga1 279 172 16ms 12 Aug 2021 645th GitQuick 279 172 11ms 9 Mar 2024 647th chriscconte 277 173 10ms 16 Apr 2019 647th jjbvtk 277 173 10ms 3 Sep 2021 649th devRND-ess 267 180 13ms 30 Apr 2020 649th GlennHA 267 180 9ms 15 May 2021 649th theunofficialcoder 267 180 10ms 12 Jan 2024 652nd willzywiec 265 181 10ms 5 Aug 2018 652nd Unknownuserfrommars 265 181 11ms 20 Nov 2024 654th zuparnowa 264 182 17ms 23 Jan 2019 654th henrytranter 264 182 16ms 20 Sep 2019 656th dylanjones92 261 184 10ms 17 Jan 2024 657th shinylego 259 185 10ms 19 Oct 2022 658th Aniketgautam 255 188 10ms 6 Apr 2018 658th schmisev 255 188 10ms 11 Oct 2018 658th alfonsoalves 255 188 9ms 27 Feb 2024 661st Bananapants22 254 189 11ms 16 Aug 2022 662nd jmmographer 253 190 10ms 20 Oct 2023 663rd AbuzarN 250 192 10ms 4 Oct 2023 664th rohan335 245 196 10ms 24 Jul 2024 665th newc0m 236 203 18ms 7 Dec 2018 666th Upload-and-View 🇺🇦 235 204 10ms 9 Aug 2025 667th ariesmarinus 231 208 10ms 3 Dec 2024 668th itljan30 222 216 10ms 6 Oct 2024 669th janedoloris 219 219 9ms 14 Feb 2021 669th RobinStevenMartinez 219 219 10ms 27 Aug 2021 669th atazzam 🇺🇸 219 219 11ms 2 Apr 2022 672nd eje24 215 223 20ms 22 Jul 2020 673rd BLD933 🇲🇦 211 227 11ms 2 Sep 2023 674th kevinnaviapaiva 211 228 10ms 13 Feb 2025 675th DylanGodfrey 207 232 10ms 5 Jun 2018 676th clodalala 205 234 10ms 13 Nov 2019 677th dens558 203 237 10ms 25 May 2019 678th fl3ur1nestimable 200 240 10ms 3 Apr 2022 679th PrestonWin 193 249 10ms 20 Nov 2021 680th twrogers1 186 258 10ms 17 Aug 2020 681st kpasc 183 262 12ms 13 Jul 2018 682nd scottJsonar 178 269 9ms 29 Nov 2019 683rd wrhm 174 276 10ms 12 Dec 2020 684th sayloren 169 284 11ms 11 Jun 2021 685th EmadAIsmael 166 290 10ms 16 Jan 2019 686th cybermoonman 164 293 23ms 23 Aug 2020 687th Emsi7 161 299 10ms 14 Jun 2023 688th Zhenyu-Bo 157 306 10ms 1 Aug 2025 689th NuqieNoila 153 314 11ms 1 Feb 2019 690th breeezi 143 335 9ms 3 Feb 2020 691st Noooiz 142 338 10ms 30 Dec 2018 692nd valdemarsoegaard 141 341 10ms 2 Dec 2020 693rd gregorywood99 135 356 10ms 20 Sep 2021 694th 1isaaclaryea 133 362 10ms 29 May 2020 695th cva 123 391 11ms 16 Apr 2020 696th sandybeachum 112 429 10ms 19 Mar 2021 697th somT-oss 109 440 10ms 28 Nov 2024 698th Crankbrother 108 446 12ms 25 Jun 2020 699th enok82 106 453 16ms 3 Sep 2019 700th Balaji-Jag 89 541 10ms 12 Nov 2019 701st nikkipinky 51 947 11ms 4 Jan 2021 First Prev 641–701 of 701
