The Calendar hole will go live in approximately 8 days. Why not try and solve it ahead of time?
Abundant Numbers (Long) in all languages 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 640th Steffan153 🇫🇮 868 102 252ms 20 Jul 2024 642nd elgan65536 866 62 22ms 18 Nov 2023 642nd Rubiksmath 866 62 3,454ms 22 Dec 2023 642nd Flekay 🇩🇪 866 62 31ms 19 Jun 2025 642nd 123mjb 866 62 20ms 26 days ago 646th MeWhenI 🇻🇦 866 63 15ms 9 Oct 2023 646th GolfingSuccess 🇬🇷 866 63 15ms 14 Oct 2023 648th ashtraypettingzoo 🇺🇸 866 66 152ms 11 Feb 2023 649th Re-Adventures 🇮🇳 866 85 124ms 9 Jun 2023 649th elgan65536 866 85 124ms 24 Sep 2023 649th drabart 🇵🇱 866 85 130ms 15 Dec 2023 649th Aurel300 🇨🇭 866 85 128ms 6 Jun 2024 649th wuzekai518 866 85 129ms 5 Aug 2024 649th edsrzf 🇳🇿 866 85 126ms 16 Nov 2024 649th luuumine 🇫🇷 866 85 126ms 18 Nov 2025 656th Lydxn 🇨🇦 865 92 44ms 11 Jul 2023 657th Betuaredead 864 74 102ms 7 Jan 2023 657th dokutan 864 74 98ms 8 Jun 2024 657th DialFrost 🇸🇬 864 74 83ms 11 Apr 2025 657th snoozingnewt 🇨🇦 864 74 90ms 9 Oct 2025 661st DialFrost 🇸🇬 864 141 571ms 28 Mar 2025 661st emgordon154 864 141 491ms 28 Mar 2025 661st Shanethegamer 🇺🇸 864 141 390ms 10 Apr 2025 664th Sakisan 🇧🇪 863 72 1,903ms 21 Oct 2023 665th fuzzylojik-golf 🇺🇸 863 91 440ms 24 Sep 2025 665th dokutan 863 91 375ms 24 Sep 2025 665th sean-niemann 🇺🇸 863 91 485ms 24 Sep 2025 665th Shanethegamer 🇺🇸 863 91 446ms 25 Sep 2025 665th nwellnhof 🇩🇪 863 91 456ms 25 Sep 2025 665th Yewzir 🇧🇪 863 91 443ms 2 Oct 2025 665th namelessiw 863 91 453ms 4 Oct 2025 665th Yax42 🇫🇷 863 91 439ms 4 Oct 2025 665th stefangimmillaro 863 91 462ms 6 Oct 2025 665th snoozingnewt 🇨🇦 863 91 459ms 9 Oct 2025 665th CaedenHarper 🇨🇦 863 91 590ms 19 Oct 2025 665th MeWhenI 🇻🇦 863 91 470ms 7 Nov 2025 677th Feniske 🇫🇷 862 49 1,909ms 21 Nov 2022 677th 5quiwyrm 862 49 1,831ms 12 Dec 2024 677th DialFrost 🇸🇬 862 49 2,002ms 26 Aug 2025 680th Kaffeleif 862 76 57ms 15 Dec 2023 681st snoozingnewt 🇨🇦 862 116 255ms 19 Oct 2023 681st elgan65536 862 116 278ms 23 Oct 2023 681st emgordon154 862 116 263ms 17 Jan 2025 681st Matter1024 🇮🇳 862 116 260ms 7 Aug 2025 685th primo-ppcg 🇹🇭 861 40 146ms 20 Nov 2022 686th Shanethegamer 🇺🇸 861 57 10ms 19 Nov 2022 686th jared-hughes 861 57 12ms 19 Nov 2022 686th janbehrens 🇩🇪 861 57 10ms 19 Nov 2022 686th Re-Adventures 🇮🇳 861 57 10ms 20 Nov 2022 686th BambooleanLogic 🇸🇪 861 57 11ms 20 Nov 2022 686th GeorgeStechman 🇬🇧 861 57 10ms 20 Nov 2022 686th nstearns96 🇬🇧 861 57 10ms 28 Nov 2022 686th Yewzir 🇧🇪 861 57 11ms 16 Apr 2023 686th quirked-up 861 57 13ms 30 Aug 2023 686th raszpi 🇭🇺 861 57 11ms 2 Sep 2023 686th coreynash 861 57 11ms 25 Sep 2023 686th stefangimmillaro 861 57 10ms 28 Sep 2023 686th trinityy-7 861 57 14ms 18 Oct 2023 686th dylanarmstrong 861 57 10ms 6 Dec 2023 686th jbt 861 57 11ms 26 Dec 2023 686th olleicua 🇺🇸 861 57 11ms 2 Feb 2024 686th alexsave 861 57 11ms 6 Nov 2024 686th dokutan 861 57 14ms 16 Jul 2025 686th snoozingnewt 🇨🇦 861 57 11ms 9 Oct 2025 686th Lv0Sys 🇵🇱 861 57 11ms 15 days ago 706th DestyNova 🇮🇪 861 71 125ms 24 Jan 2023 707th KasperKivimaeki 🇫🇮 860 57 34ms 8 days ago 708th MeWhenI 🇻🇦 860 78 100ms 23 Nov 2022 708th Betuaredead 860 78 99ms 7 Jan 2023 708th raszpi 🇭🇺 860 78 97ms 2 Sep 2023 708th dokutan 860 78 100ms 8 Aug 2024 712th Steffan153 🇫🇮 859 62 11ms 29 Nov 2022 712th DialFrost 🇸🇬 859 62 27ms 22 Dec 2023 712th sean-niemann 🇺🇸 859 62 14ms 5 Feb 2025 712th KasperKivimaeki 🇫🇮 859 62 21ms 13 days ago 716th KrausRaus 🇺🇸 859 87 352ms 2 Dec 2022 716th TRexOnGit 859 87 376ms 16 Jan 2024 718th MeWhenI 🇻🇦 859 93 58ms 21 Aug 2023 718th Alex-x90 🇺🇸 859 93 67ms 31 Jan 2024 718th Mandrzejy 🇵🇱 859 93 58ms 28 Mar 2024 First Prev 641–720 of 2,616 Next Last