The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Inventory Sequence 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 317th AdrienHache 🇫🇷 873 86 352ms 17 Dec 2024 317th Yax42 🇫🇷 873 86 383ms 31 May 2025 317th DialFrost 🇸🇬 873 86 382ms 27 days ago 324th Steffan153 🇫🇮 872 68 25ms 13 Aug 2024 325th m-tkach 🇺🇦 872 143 189ms 1 Apr 2023 326th JayXon 🇺🇸 871 44 993ms 19 Feb 2023 326th stefangimmillaro 871 44 994ms 29 Apr 2023 328th lifthrasiir 🇰🇷 870 24 3ms 28 Nov 2024 329th primo-ppcg 🇹🇭 870 43 9ms 21 Nov 2022 329th Steffan153 🇫🇮 870 43 6ms 14 Aug 2024 331st m-tkach 🇺🇦 869 57 365ms 21 Jan 2024 331st MeWhenI 🇻🇦 869 57 415ms 22 Jul 2024 331st lifthrasiir 🇰🇷 869 57 372ms 3 Dec 2024 334th OllieBoyne 🇬🇧 869 60 32ms 6 Dec 2022 334th yzhs 🇩🇪 869 60 11ms 23 Jun 2023 334th AlexanderFair 869 60 32ms 2 Jul 2023 334th ndren 869 60 32ms 11 Aug 2023 334th bzijlema 🇳🇱 869 60 33ms 11 Nov 2023 334th elgan65536 869 60 13ms 30 Mar 2024 334th ahmetdemirag 🇨🇾 869 60 29ms 21 Jul 2024 334th jatloe 869 60 33ms 27 Sep 2024 334th ZakkkkAttackkkk 🇵🇭 869 60 11ms 5 Feb 2025 334th BlankSpruce 869 60 11ms 26 Apr 2025 334th jipsong 🇩🇪 869 60 30ms 13 Jun 2025 334th albanian-laundromat 869 60 34ms 9 Aug 2025 334th qpwoeirut 869 60 29ms 13 Aug 2025 347th GolfingSuccess 🇬🇷 869 88 71ms 20 Nov 2022 347th Shanethegamer 🇺🇸 869 88 64ms 22 Nov 2022 347th ovs-code 🇩🇪 869 88 71ms 3 Jun 2024 347th luuumine 🇫🇷 869 88 76ms 17 Nov 2025 351st DialFrost 🇸🇬 869 103 104ms 15 days ago 351st snoozingnewt 🇨🇦 869 103 100ms 13 days ago 353rd pardouin 🇫🇷 868 76 4,383ms 12 Sep 2025 354th Natanaelel 🇸🇪 867 28 34ms 3 Nov 2023 354th SirBogman 🇺🇸 867 28 35ms 14 Feb 2024 356th didion0 🇺🇸 867 57 9ms 22 Feb 2023 356th voytxt 🇨🇿 867 57 9ms 19 May 2023 356th stefangimmillaro 867 57 10ms 23 Sep 2023 356th emgordon154 867 57 10ms 17 Nov 2025 360th Shanethegamer 🇺🇸 867 76 123ms 21 Jun 2024 361st primo-ppcg 🇹🇭 867 167 12ms 13 Aug 2025 362nd janbehrens 🇩🇪 866 84 478ms 21 Nov 2022 363rd GolfingSuccess 🇬🇷 865 68 2ms 20 Nov 2022 363rd Shanethegamer 🇺🇸 865 68 2ms 22 Nov 2022 363rd luuumine 🇫🇷 865 68 2ms 17 Nov 2025 363rd solisolu 865 68 2ms 11 days ago 363rd prestosilver 🇺🇸 865 68 2ms 5 days ago 368th jared-hughes 864 102 8ms 7 Jul 2024 369th Shanethegamer 🇺🇸 864 162 546ms 5 Apr 2025 370th MeWhenI 🇻🇦 863 64 3ms 10 Oct 2023 371st JayXon 🇺🇸 863 72 2ms 23 Nov 2022 372nd DialFrost 🇸🇬 862 64 98ms 27 days ago 373rd Waffle3z 862 72 2ms 11 Dec 2022 373rd jared-hughes 862 72 2ms 16 Mar 2023 373rd edsrzf 🇳🇿 862 72 2ms 27 Aug 2025 376th GrayJoKing 🇦🇺 861 42 45ms 21 Nov 2022 376th JayXon 🇺🇸 861 42 50ms 22 Nov 2022 376th pardouin 🇫🇷 861 42 61ms 2 Sep 2025 379th primo-ppcg 🇹🇭 861 54 73ms 24 Sep 2023 380th sean-niemann 🇺🇸 861 72 44ms 23 Apr 2023 381st JayXon 🇺🇸 861 160 1,642ms 15 Sep 2025 382nd GrayJoKing 🇦🇺 859 89 75ms 1 Dec 2022 382nd Alex-x90 🇺🇸 859 89 82ms 20 Nov 2024 384th SirBogman 🇺🇸 857 77 39ms 22 Nov 2022 384th primo-ppcg 🇹🇭 857 77 48ms 24 Nov 2022 386th m-tkach 🇺🇦 856 101 25ms 20 Nov 2022 387th MeWhenI 🇻🇦 856 108 33ms 25 Nov 2022 388th emplv 🇱🇻 856 111 271ms 26 Jul 2023 389th MeWhenI 🇻🇦 855 48 267ms 22 Jul 2024 389th Steffan153 🇫🇮 855 48 273ms 9 Aug 2024 391st Shanethegamer 🇺🇸 855 61 33ms 19 Nov 2022 391st thehylian 855 61 34ms 11 Jan 2023 391st galloj 🇨🇿 855 61 33ms 4 Mar 2023 391st commandblockguy 🇺🇸 855 61 29ms 17 Nov 2023 391st mathisfun271 855 61 34ms 13 Feb 2024 391st BREMAUCY 🇫🇷 855 61 32ms 7 Mar 2024 391st stertooy 🇧🇪 855 61 34ms 10 Jun 2024 391st Alex-x90 🇺🇸 855 61 11ms 20 Nov 2024 391st KatieLG 🇬🇧 855 61 33ms 19 Oct 2025 391st solisolu 855 61 29ms 15 days ago First Prev 321–400 of 1,628 Next Last