The Calendar hole will go live in approximately 2 days. Why not try and solve it ahead of time?
Abundant Numbers (Long) in all languages 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 801st orthoplex 🇨🇽 874 102 259ms 29 Jun 2023 801st Steffan153 🇫🇮 874 102 252ms 20 Jul 2024 803rd canissimia 🇦🇶 874 131 2,150ms 31 Oct 2023 804th adaGrad1 873 70 2ms 3 Sep 2023 805th janbehrens 🇩🇪 873 115 275ms 19 Nov 2022 805th msbranicky 873 115 264ms 21 Aug 2023 805th harshit54 873 115 276ms 6 Oct 2023 805th arctouch-cristiannevianna 873 115 262ms 25 Mar 2024 805th rifatx 873 115 259ms 22 Jul 2024 805th ibeucaly 873 115 271ms 6 Sep 2024 811th Feniske 🇫🇷 872 49 1,909ms 21 Nov 2022 811th 5quiwyrm 872 49 1,831ms 12 Dec 2024 811th DialFrost 🇸🇬 872 49 2,002ms 26 Aug 2025 814th Betuaredead 872 74 102ms 7 Jan 2023 814th dokutan 872 74 98ms 8 Jun 2024 814th snoozingnewt 🇨🇦 872 74 90ms 9 Oct 2025 817th ashtraypettingzoo 🇺🇸 871 66 152ms 11 Feb 2023 818th Sakisan 🇧🇪 871 72 1,903ms 21 Oct 2023 819th primo-ppcg 🇹🇭 871 92 54ms 20 Nov 2022 819th Steffan153 🇫🇮 871 92 56ms 2 Dec 2022 819th Lydxn 🇨🇦 871 92 44ms 11 Jul 2023 819th sean-niemann 🇺🇸 871 92 66ms 5 Feb 2025 819th DialFrost 🇸🇬 871 92 60ms 20 days ago 824th Re-Adventures 🇮🇳 870 85 124ms 9 Jun 2023 824th elgan65536 870 85 124ms 24 Sep 2023 824th drabart 🇵🇱 870 85 130ms 15 Dec 2023 824th Aurel300 🇨🇭 870 85 128ms 6 Jun 2024 824th wuzekai518 870 85 129ms 5 Aug 2024 824th edsrzf 🇳🇿 870 85 126ms 16 Nov 2024 824th luuumine 🇫🇷 870 85 126ms 18 Nov 2025 831st Shanethegamer 🇺🇸 870 89 449ms 19 Nov 2022 831st janbehrens 🇩🇪 870 89 471ms 19 Nov 2022 831st Ripick 870 89 451ms 27 Nov 2024 834th DialFrost 🇸🇬 869 141 490ms 28 Mar 2025 834th emgordon154 869 141 491ms 28 Mar 2025 834th Shanethegamer 🇺🇸 869 141 390ms 10 Apr 2025 837th KasperKivimaeki 🇫🇮 868 57 34ms 14 days ago 838th DestyNova 🇮🇪 868 71 125ms 24 Jan 2023 839th HPWiz 🇳🇿 867 45 3,764ms 23 Nov 2022 839th o0lit3 🇺🇸 867 45 18ms 19 Jun 2023 839th nwellnhof 🇩🇪 867 45 772ms 27 Aug 2024 842nd ridingqwerty 🇺🇸 867 64 390ms 25 Jul 2025 842nd snoozingnewt 🇨🇦 867 64 532ms 28 Sep 2025 844th Shanethegamer 🇺🇸 865 57 10ms 19 Nov 2022 844th jared-hughes 865 57 12ms 19 Nov 2022 844th janbehrens 🇩🇪 865 57 10ms 19 Nov 2022 844th Re-Adventures 🇮🇳 865 57 10ms 20 Nov 2022 844th BambooleanLogic 🇸🇪 865 57 11ms 20 Nov 2022 844th GeorgeStechman 🇬🇧 865 57 10ms 20 Nov 2022 844th nstearns96 🇬🇧 865 57 10ms 28 Nov 2022 844th Yewzir 🇧🇪 865 57 11ms 16 Apr 2023 844th quirked-up 865 57 13ms 30 Aug 2023 844th raszpi 🇭🇺 865 57 11ms 2 Sep 2023 844th coreynash 865 57 11ms 25 Sep 2023 844th stefangimmillaro 865 57 10ms 28 Sep 2023 844th trinityy-7 865 57 14ms 18 Oct 2023 844th dylanarmstrong 865 57 10ms 6 Dec 2023 844th jbt 865 57 11ms 26 Dec 2023 844th olleicua 🇺🇸 865 57 11ms 2 Feb 2024 844th alexsave 865 57 11ms 6 Nov 2024 844th dokutan 865 57 14ms 16 Jul 2025 844th snoozingnewt 🇨🇦 865 57 11ms 9 Oct 2025 844th Lv0Sys 🇵🇱 865 57 11ms 22 days ago 864th Steffan153 🇫🇮 865 62 11ms 29 Nov 2022 864th DialFrost 🇸🇬 865 62 27ms 22 Dec 2023 864th sean-niemann 🇺🇸 865 62 10ms 5 Feb 2025 864th KasperKivimaeki 🇫🇮 865 62 16ms 19 days ago 868th MeWhenI 🇻🇦 865 78 100ms 23 Nov 2022 868th Betuaredead 865 78 99ms 7 Jan 2023 868th raszpi 🇭🇺 865 78 97ms 2 Sep 2023 868th dokutan 865 78 100ms 8 Aug 2024 872nd snoozingnewt 🇨🇦 865 116 255ms 19 Oct 2023 872nd elgan65536 865 116 278ms 23 Oct 2023 872nd emgordon154 865 116 263ms 17 Jan 2025 872nd Matter1024 🇮🇳 865 116 260ms 7 Aug 2025 876th ovs-code 🇩🇪 864 57 128ms 4 Aug 2024 877th EyalLitvin 864 69 20ms 20 Nov 2022 877th michelebastione 🇮🇹 864 69 50ms 21 Nov 2022 877th TheBlupper 864 69 20ms 22 Nov 2022 877th hymanimy 864 69 20ms 24 Nov 2022 First Prev 801–880 of 2,636 Next Last