The Calendar hole will go live in approximately 7 days. Why not try and solve it ahead of time?
Niven Numbers (Long) 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 Lydxn 🇨🇦 1,000 59 6ms 13 Aug 2023 1st JayXon 🇺🇸 1,000 59 4ms 13 Aug 2023 3rd sisyphus-ppcg 🇦🇺 983 60 14ms 9 Aug 2022 4th Waffle3z 952 62 4ms 8 Aug 2022 4th GrayJoKing 🇦🇺 952 62 4ms 13 Aug 2022 4th jared-hughes 952 62 9ms 13 Aug 2022 4th primo-ppcg 🇹🇭 952 62 5ms 4 Sep 2022 4th sean-niemann 🇺🇸 952 62 3ms 11 Apr 2023 4th pardouin 🇫🇷 952 62 4ms 21 Oct 2024 4th fuzzylojik-golf 🇺🇸 952 62 3ms 3 Jul 2025 11th DialFrost 🇸🇬 937 63 3ms 11 Apr 2025 12th btnlq 894 66 7ms 27 Dec 2022 13th FlyingPenguin223 881 67 4ms 1 Nov 2024 14th GalladeGuy 🇺🇸 868 68 5ms 15 Dec 2024 15th MWI-polygolf 855 69 4ms 6 Dec 2023 15th steffan-polygolf 855 69 5ms 14 Feb 2024 17th NickTheEASDude 🇺🇸 843 70 27ms 9 May 2024 18th koipondx86 819 72 23ms 15 Nov 2024 19th snoozingnewt 🇨🇦 787 75 7ms 12 days ago 20th Shanethegamer 🇺🇸 747 79 6ms 9 Aug 2022 20th adriweb 🇫🇷 747 79 6ms 2 Oct 2023 20th dokutan 747 79 4ms 21 Sep 2024 23rd mtirado1 738 80 25ms 16 Aug 2022 24th Natanaelel 🇸🇪 728 81 6ms 9 Aug 2022 25th kTheLemon 720 82 7ms 15 Mar 2025 26th Ernest1338 711 83 19ms 6 Sep 2022 26th Phil-RGOMEGA 711 83 19ms 21 Aug 2023 26th msbranicky 711 83 5ms 28 Sep 2023 29th swcnt 678 87 18ms 7 Apr 2025 30th funkkiy 🇧🇷 670 88 19ms 15 Sep 2023 30th stellartux 670 88 6ms 26 Dec 2023 32nd AminurAlam 663 89 11ms 20 Mar 2024 33rd epic-programmer-guy 656 90 9ms 20 Dec 2023 34th JesseNoEyes 🇺🇸 596 99 7ms 30 Oct 2024 34th CarterStroik 596 99 4ms 11 days ago 36th aDwarfNamedUrist 567 104 6ms 6 Dec 2022 37th destofr 551 107 8ms 23 Aug 2022 38th StronkCheese 🇺🇸 434 136 6ms 18 Feb 2023 39th kevinnaviapaiva 401 147 3ms 29 Jul 2025 40th JRaspass 🇬🇧 8 7,446 2ms 8 Aug 2022 40th HumanoidCPU 8 7,446 3ms 4 Mar 2025 40th CaedenHarper 🇨🇦 8 7,446 2ms 16 Aug 2025 43rd retrohun 7 8,981 3ms 28 Dec 2022 44th KatieLG-Transpiler 🇬🇧 7 8,983 2ms 8 Aug 2022 44th KatieLG 🇬🇧 7 8,983 1ms 8 Jan 2025 1–45 of 45
