The Calendar hole will go live in approximately 10 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 janbehrens 🇩🇪 873 115 275ms 19 Nov 2022 801st msbranicky 873 115 264ms 21 Aug 2023 801st harshit54 873 115 276ms 6 Oct 2023 801st arctouch-cristiannevianna 873 115 262ms 25 Mar 2024 801st rifatx 873 115 259ms 22 Jul 2024 801st ibeucaly 873 115 271ms 6 Sep 2024 807th Betuaredead 872 74 102ms 7 Jan 2023 807th dokutan 872 74 98ms 8 Jun 2024 807th DialFrost 🇸🇬 872 74 83ms 11 Apr 2025 807th snoozingnewt 🇨🇦 872 74 90ms 9 Oct 2025 811th Feniske 🇫🇷 871 49 1,909ms 21 Nov 2022 811th 5quiwyrm 871 49 1,831ms 12 Dec 2024 811th DialFrost 🇸🇬 871 49 2,002ms 26 Aug 2025 814th ashtraypettingzoo 🇺🇸 871 66 152ms 11 Feb 2023 815th Sakisan 🇧🇪 871 72 1,903ms 21 Oct 2023 816th primo-ppcg 🇹🇭 871 92 54ms 20 Nov 2022 816th Steffan153 🇫🇮 871 92 56ms 2 Dec 2022 816th Lydxn 🇨🇦 871 92 44ms 11 Jul 2023 816th sean-niemann 🇺🇸 871 92 70ms 5 Feb 2025 816th DialFrost 🇸🇬 871 92 73ms 11 days ago 821st Re-Adventures 🇮🇳 870 85 124ms 9 Jun 2023 821st elgan65536 870 85 124ms 24 Sep 2023 821st drabart 🇵🇱 870 85 130ms 15 Dec 2023 821st Aurel300 🇨🇭 870 85 128ms 6 Jun 2024 821st wuzekai518 870 85 129ms 5 Aug 2024 821st edsrzf 🇳🇿 870 85 126ms 16 Nov 2024 821st luuumine 🇫🇷 870 85 126ms 18 Nov 2025 828th Shanethegamer 🇺🇸 870 89 449ms 19 Nov 2022 828th janbehrens 🇩🇪 870 89 471ms 19 Nov 2022 828th Ripick 870 89 451ms 27 Nov 2024 831st DialFrost 🇸🇬 869 141 571ms 28 Mar 2025 831st emgordon154 869 141 491ms 28 Mar 2025 831st Shanethegamer 🇺🇸 869 141 390ms 10 Apr 2025 834th KasperKivimaeki 🇫🇮 868 57 34ms 5 days ago 835th DestyNova 🇮🇪 868 71 125ms 24 Jan 2023 836th HPWiz 🇳🇿 867 45 3,764ms 23 Nov 2022 836th o0lit3 🇺🇸 867 45 18ms 19 Jun 2023 836th nwellnhof 🇩🇪 867 45 772ms 27 Aug 2024 839th ridingqwerty 🇺🇸 867 64 390ms 25 Jul 2025 839th snoozingnewt 🇨🇦 867 64 532ms 28 Sep 2025 841st Shanethegamer 🇺🇸 865 57 10ms 19 Nov 2022 841st jared-hughes 865 57 12ms 19 Nov 2022 841st janbehrens 🇩🇪 865 57 10ms 19 Nov 2022 841st Re-Adventures 🇮🇳 865 57 10ms 20 Nov 2022 841st BambooleanLogic 🇸🇪 865 57 11ms 20 Nov 2022 841st GeorgeStechman 🇬🇧 865 57 10ms 20 Nov 2022 841st nstearns96 🇬🇧 865 57 10ms 28 Nov 2022 841st Yewzir 🇧🇪 865 57 11ms 16 Apr 2023 841st quirked-up 865 57 13ms 30 Aug 2023 841st raszpi 🇭🇺 865 57 11ms 2 Sep 2023 841st coreynash 865 57 11ms 25 Sep 2023 841st stefangimmillaro 865 57 10ms 28 Sep 2023 841st trinityy-7 865 57 14ms 18 Oct 2023 841st dylanarmstrong 865 57 10ms 6 Dec 2023 841st jbt 865 57 11ms 26 Dec 2023 841st olleicua 🇺🇸 865 57 11ms 2 Feb 2024 841st alexsave 865 57 11ms 6 Nov 2024 841st dokutan 865 57 14ms 16 Jul 2025 841st snoozingnewt 🇨🇦 865 57 11ms 9 Oct 2025 841st Lv0Sys 🇵🇱 865 57 11ms 13 days ago 861st Steffan153 🇫🇮 865 62 8ms 29 Nov 2022 861st DialFrost 🇸🇬 865 62 12ms 22 Dec 2023 861st sean-niemann 🇺🇸 865 62 11ms 5 Feb 2025 861st KasperKivimaeki 🇫🇮 865 62 14ms 10 days ago 865th MeWhenI 🇻🇦 865 78 100ms 23 Nov 2022 865th Betuaredead 865 78 99ms 7 Jan 2023 865th raszpi 🇭🇺 865 78 97ms 2 Sep 2023 865th dokutan 865 78 100ms 8 Aug 2024 869th snoozingnewt 🇨🇦 865 116 255ms 19 Oct 2023 869th elgan65536 865 116 278ms 23 Oct 2023 869th emgordon154 865 116 263ms 17 Jan 2025 869th Matter1024 🇮🇳 865 116 260ms 7 Aug 2025 873rd ovs-code 🇩🇪 864 57 128ms 4 Aug 2024 874th EyalLitvin 864 69 20ms 20 Nov 2022 874th michelebastione 🇮🇹 864 69 50ms 21 Nov 2022 874th TheBlupper 864 69 20ms 22 Nov 2022 874th hymanimy 864 69 20ms 24 Nov 2022 874th knutae 🇳🇴 864 69 21ms 30 Nov 2022 874th fynnkroeger 864 69 30ms 10 Dec 2022 874th b10011 🇫🇮 864 69 20ms 18 Dec 2022 First Prev 801–880 of 2,629 Next Last