The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Arrows 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 401st bricknellj 728 131 10ms 27 Nov 2022 402nd Shanethegamer 🇺🇸 727 174 42ms 2 Sep 2021 403rd primo-ppcg 🇹🇭 726 155 820ms 24 Sep 2021 404th snoozingnewt 🇨🇦 726 162 1,389ms 8 days ago 405th Natanaelel 🇸🇪 722 95 53ms 15 Feb 2023 406th neel11235813 722 132 11ms 3 Apr 2024 406th KatieLG 🇬🇧 722 132 17ms 30 Sep 2025 408th albanian-laundromat 721 181 5ms 14 days ago 409th snoozingnewt 🇨🇦 719 118 11ms 8 days ago 410th leon-w 717 133 13ms 24 Jul 2024 411th kg583 🇺🇸 717 182 8ms 8 days ago 412th lifthrasiir 🇰🇷 715 344 11ms 19 Dec 2024 413th dokutan 714 127 1,296ms 3 days ago 414th kg583 🇺🇸 712 134 34ms 1 Mar 2025 415th 386asm 🇺🇸 710 134 44ms 7 May 2023 416th MeWhenI 🇻🇦 709 119 150ms 3 Aug 2024 417th shelerr 706 135 13ms 29 Aug 2023 417th moustave 706 135 10ms 29 Nov 2024 419th snoozingnewt 🇨🇦 705 185 3ms 8 days ago 420th dokutan 703 119 602ms 5 Nov 2025 421st emgordon154 703 120 143ms 4 Sep 2025 422nd dokutan 703 129 141ms 4 days ago 423rd Steffan153 🇫🇮 703 160 753ms 31 May 2024 423rd dokutan 703 160 798ms 8 Nov 2025 425th MeWhenI 🇻🇦 702 146 129ms 2 Nov 2023 426th abc7-12 701 136 39ms 2 Jun 2024 427th edsrzf 🇳🇿 701 186 8ms 15 Sep 2025 428th emgordon154 700 70 58ms 4 Sep 2025 429th dokutan 700 146 445ms 7 Nov 2025 430th snoozingnewt 🇨🇦 699 201 7ms 8 days ago 431st AlephSquirrel 698 133 4ms 6 Aug 2024 432nd MeWhenI 🇻🇦 697 93 3ms 16 Apr 2023 433rd MeWhenI 🇻🇦 697 185 35ms 7 Jun 2023 434th The3gs 696 137 14ms 16 Aug 2023 434th ahmetdemirag 🇨🇾 696 137 12ms 12 Jul 2024 436th MeWhenI 🇻🇦 695 185 132ms 25 May 2022 437th stefangimmillaro 694 118 6ms 6 Sep 2022 438th fuzzylojik-golf 🇺🇸 691 121 743ms 6 Jul 2025 439th dokutan 691 131 2ms 5 Nov 2025 440th prplz 🇦🇺 690 163 803ms 25 Sep 2021 441st dokutan 689 125 2ms 6 Nov 2025 442nd ovs-code 🇩🇪 688 149 96ms 5 Mar 2024 443rd neel11235813 686 122 490ms 3 Apr 2024 444th bzijlema 🇳🇱 686 139 21ms 28 Sep 2023 445th stefangimmillaro 684 185 41ms 26 Apr 2025 446th MeWhenI 🇻🇦 682 100 424ms 14 Feb 2023 447th MeWhenI 🇻🇦 681 130 14ms 10 Nov 2021 448th galloj 🇨🇿 679 271 8ms 22 Apr 2024 449th targrik 676 121 7ms 27 Aug 2025 450th Shanethegamer 🇺🇸 676 131 14ms 10 Dec 2021 451st thisishowmymindworks 🇳🇴 676 141 13ms 31 May 2023 451st MWI-polygolf 676 141 11ms 6 Dec 2023 453rd kg583 🇺🇸 675 124 533ms 1 Mar 2025 454th blaztoma 🇱🇹 675 182 227ms 17 days ago 455th edsrzf 🇳🇿 675 189 368ms 27 Sep 2024 456th betaveros 672 142 13ms 1 Jan 2023 456th b10011 🇫🇮 672 142 12ms 7 Jan 2023 456th qpwoeirut 672 142 15ms 3 Aug 2025 459th snoozingnewt 🇨🇦 670 137 144ms 8 days ago 460th AdrienHache 🇫🇷 670 143 479ms 30 Dec 2024 461st CatsAreFluffy 668 133 61ms 30 Dec 2022 462nd janbehrens 🇩🇪 667 143 12ms 17 Jun 2023 463rd dokutan 667 246 2,205ms 5 Nov 2025 464th KatieLG 🇬🇧 666 103 50ms 30 Sep 2025 465th MeWhenI 🇻🇦 665 178 5ms 29 Apr 2022 466th MeWhenI 🇻🇦 663 86 163ms 31 Jan 2023 467th StefanHabel 🇨🇦 662 144 12ms 14 Nov 2022 467th codingisgreatbutiamnot 662 144 11ms 24 Aug 2024 467th FortuiteMan 🇫🇷 662 144 14ms 1 Nov 2025 470th adyache 🇺🇸 662 163 6ms 5 Jun 2023 471st Andriamanitra 🇫🇮 660 104 50ms 1 Sep 2022 472nd jaredtrh 658 145 14ms 12 Sep 2021 472nd inverseLorentz 🇦🇺 658 145 10ms 19 Oct 2023 474th MWI-polygolf 658 169 123ms 6 Dec 2023 475th The3gs 656 207 153ms 28 Nov 2024 476th Shanethegamer 🇺🇸 655 99 3ms 19 Dec 2021 477th Shanethegamer 🇺🇸 654 117 26ms 9 Jul 2022 478th wh3n3v3r 🇨🇿 649 147 11ms 18 Nov 2024 479th ovs-code 🇩🇪 645 136 4ms 27 Sep 2024 480th c0d3-4-F00d 🇩🇪 642 132 11ms 22 Sep 2021 First Prev 401–480 of 1,271 Next Last