The Calendar hole will go live in approximately 10 days. Why not try and solve it ahead of time?
Abundant Numbers 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 390th itserasmus 864 54 9ms 25 Jan 2024 390th fuzzylojik-golf 🇺🇸 864 54 10ms 29 May 2025 390th acollett89 864 54 9ms 21 Jul 2025 404th Waffle3z 864 60 1ms 27 Jan 2021 405th emgordon154 863 141 501ms 24 Mar 2025 405th DialFrost 🇸🇬 863 141 555ms 28 Mar 2025 405th Shanethegamer 🇺🇸 863 141 423ms 10 Apr 2025 408th primo-ppcg 🇹🇭 862 53 53ms 1 Dec 2021 409th GrayJoKing 🇦🇺 862 64 117ms 31 May 2022 409th Steffan153 🇫🇮 862 64 103ms 10 Dec 2022 409th albanian-laundromat 862 64 123ms 11 Nov 2025 412th RobertHoeh 861 66 124ms 25 Jan 2024 413th diddily 860 56 9ms 20 Nov 2022 413th jeff-at-tamer-dot-codes 🇺🇸 860 56 9ms 31 Mar 2024 413th neel11235813 860 56 10ms 1 Apr 2024 413th snoozingnewt 🇨🇦 860 56 9ms 14 Jan 2025 413th fuzzylojik-golf 🇺🇸 860 56 10ms 1 Sep 2025 418th sean-niemann 🇺🇸 860 85 67ms 12 Aug 2024 419th clockworknazo 859 57 3ms 15 Nov 2022 420th HPWiz 🇳🇿 858 41 3ms 9 Jun 2024 421st prplz 🇦🇺 858 44 982ms 24 Mar 2021 421st Shanethegamer 🇺🇸 858 44 1,040ms 10 Feb 2022 421st error256 858 44 962ms 29 Jul 2024 421st emgordon154 858 44 881ms 12 Nov 2024 425th prplz 🇦🇺 858 64 1ms 19 Nov 2019 425th 09cf 858 64 6ms 25 Oct 2023 427th sean-niemann 🇺🇸 857 58 2ms 25 Jul 2024 428th GolfingSuccess 🇬🇷 851 143 462ms 15 days ago 429th SirFireball3521 850 36 163ms 29 Jul 2023 429th sean-niemann 🇺🇸 850 36 102ms 4 Apr 2025 431st kg583 🇺🇸 850 53 416ms 7 Feb 2024 431st pardouin 🇫🇷 850 53 354ms 14 Jul 2024 431st fuzzylojik-golf 🇺🇸 850 53 439ms 29 Jul 2025 434th primo-ppcg 🇹🇭 850 61 1ms 15 Feb 2020 435th DialFrost 🇸🇬 850 67 41ms 29 Oct 2024 435th SirBogman 🇺🇸 850 67 40ms 29 Oct 2024 437th primo-ppcg 🇹🇭 850 74 26ms 4 Feb 2021 437th kg583 🇺🇸 850 74 26ms 28 Jan 2025 439th sean-niemann 🇺🇸 850 75 448ms 23 Dec 2024 440th 09cf 850 86 68ms 18 Dec 2023 441st Steffan153 🇫🇮 849 44 82ms 15 Aug 2024 442nd Shanethegamer 🇺🇸 849 65 87ms 1 Jun 2022 443rd nipzu 849 78 123ms 13 Jan 2022 443rd frozolotl 849 78 138ms 19 Jan 2022 443rd GrayJoKing 🇦🇺 849 78 127ms 4 Apr 2022 443rd ian-h-chamberlain 🇺🇸 849 78 122ms 21 Nov 2022 443rd klixel 🇨🇦 849 78 127ms 5 Dec 2022 443rd snobee 🇨🇦 849 78 125ms 10 Dec 2022 443rd Steffan153 🇫🇮 849 78 128ms 25 Mar 2023 443rd msbranicky 849 78 121ms 1 Oct 2023 443rd ludwigschlame 🇩🇪 849 78 124ms 24 Sep 2024 443rd elituf 849 78 119ms 4 Jan 2025 443rd TannerJ07 🇺🇸 849 78 132ms 5 Apr 2025 443rd lynn 849 78 123ms 6 Nov 2025 455th prplz 🇦🇺 848 55 9ms 18 Nov 2019 455th ETHproductions 🇺🇸 848 55 10ms 8 Apr 2020 455th efgen 848 55 9ms 8 Jun 2020 455th PatrickStephansen 🇿🇦 848 55 9ms 2 Sep 2020 455th tomtheisen 🇺🇸 848 55 9ms 26 Sep 2020 455th NewDefectus 🇮🇱 848 55 9ms 4 Oct 2020 455th LoLoLucky 848 55 9ms 7 Dec 2020 455th nwellnhof 🇩🇪 848 55 9ms 10 Jan 2021 455th didion0 🇺🇸 848 55 9ms 9 Mar 2021 455th ScottHamper 848 55 9ms 26 May 2021 455th itsh01 848 55 10ms 10 Aug 2021 455th jakzo 848 55 9ms 5 Sep 2021 455th nathanadams 🇳🇿 848 55 9ms 10 Sep 2021 455th janlelis 848 55 9ms 11 Nov 2021 455th igmcdowell 848 55 9ms 16 Nov 2021 455th emgordon154 848 55 9ms 29 Nov 2021 455th KrausRaus 🇺🇸 848 55 10ms 7 Dec 2021 455th KingSkyrock 🇺🇸 848 55 9ms 12 Feb 2022 455th ovs-code 🇩🇪 848 55 9ms 16 Dec 2022 455th tayloia 🇬🇧 848 55 9ms 12 Jan 2023 455th thisishowmymindworks 🇳🇴 848 55 10ms 11 May 2023 455th biocommando 🇫🇮 848 55 9ms 16 Aug 2023 455th helbling 🇨🇭 848 55 9ms 29 Feb 2024 455th Natanaelel 🇸🇪 848 55 10ms 12 Mar 2024 455th Yax42 🇫🇷 848 55 9ms 5 Sep 2025 455th denis-jasselette 848 55 9ms 17 Oct 2025 First Prev 401–480 of 4,253 Next Last