The Calendar hole will go live in approximately 2 days. Why not try and solve it ahead of time?
Happy Numbers in Lua 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 1st JayXon 🇺🇸 1,000 72 1ms 9 Jul 2021 1st Lydxn 🇨🇦 1,000 72 1ms 9 Jul 2021 1st sisyphus-ppcg 🇦🇺 1,000 72 1ms 16 Mar 2022 1st GrayJoKing 🇦🇺 1,000 72 1ms 9 Apr 2022 1st btnlq 1,000 72 1ms 28 Dec 2022 6th Waffle3z 973 74 1ms 9 Jul 2021 7th DaDerpDuck 960 75 1ms 24 Jan 2021 8th jared-hughes 947 76 1ms 6 Mar 2022 8th Steffan153 🇫🇮 947 76 1ms 25 Feb 2023 10th primo-ppcg 🇹🇭 935 77 1ms 13 Jul 2021 11th MeWhenI 🇻🇦 923 78 1ms 27 Dec 2022 12th DialFrost 🇸🇬 911 79 2ms 26 Dec 2024 13th snoozingnewt 🇨🇦 900 80 2ms 29 Nov 2025 14th FlyingPenguin223 800 90 2ms 2 hours ago 15th GalladeGuy 🇺🇸 791 91 1ms 21 May 2020 16th cafehaine 🇫🇷 758 95 1ms 8 Oct 2018 17th NickTheEASDude 🇺🇸 742 97 5ms 9 May 2024 18th kTheLemon 720 100 2ms 2 Apr 2025 19th RockOfStone 713 101 2ms 7 Nov 2021 20th Shanethegamer 🇺🇸 706 102 2ms 12 Dec 2022 21st DaCoolOne 692 104 2ms 25 Feb 2020 21st dokutan 692 104 4ms 5 Feb 2025 23rd frosster 679 106 1ms 11 May 2023 24th wackbyte 673 107 1ms 19 Dec 2023 25th icy-lava 661 109 3ms 11 Aug 2023 26th steffan-polygolf 643 112 2ms 19 Feb 2024 27th JRaspass 🇬🇧 626 115 2ms 25 Dec 2020 27th stellartux 626 115 1ms 25 Dec 2023 27th HumanoidCPU 626 115 2ms 4 Mar 2025 27th CaedenHarper 🇨🇦 626 115 2ms 16 Aug 2025 31st StarmaQ 615 117 1ms 23 Jan 2021 32nd Caylyn 610 118 2ms 28 Feb 2018 33rd mtirado1 554 130 3ms 8 May 2023 34th SirDerpyHerp 541 133 2ms 8 Sep 2021 35th msbranicky 518 139 1ms 26 Sep 2023 36th retrohun 500 144 1ms 21 Dec 2018 37th KatieLG 🇬🇧 493 146 1ms 2 Dec 2020 37th jiaminglimjm 🇲🇾 493 146 1ms 9 Jan 2021 37th mokymok 🇺🇸 493 146 1ms 8 Nov 2021 37th KatieLG-Transpiler 🇬🇧 493 146 2ms 23 Jun 2022 37th zt14427 493 146 1ms 2 May 2023 42nd Visckmart 480 150 2ms 25 Jul 2018 43rd adriweb 🇫🇷 296 243 1ms 29 Aug 2023 44th fbe 177 406 1ms 22 Dec 2021 1–44 of 44
