The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Arrows 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 641st jaredtrh 560 129 11ms 11 Sep 2021 641st guilhem-roy 🇫🇷 560 129 14ms 9 May 2022 641st MaxElf999 560 129 11ms 19 Sep 2022 641st DrPiranoid 560 129 19ms 28 Sep 2022 641st PhysicDev 🇫🇷 560 129 11ms 4 Oct 2022 641st cykim8811 560 129 10ms 10 Jul 2024 641st andrewjc2000 560 129 11ms 26 Feb 2025 641st raymur 560 129 14ms 14 Jul 2025 641st vgamula 🇺🇦 560 129 13ms 15 Jul 2025 641st Alex-Huggett 🇬🇧 560 129 10ms 14 Sep 2025 651st jared-hughes 558 109 43ms 25 Sep 2021 652nd dokutan 558 180 376ms 7 Nov 2025 653rd janbehrens 🇩🇪 557 136 12ms 29 Aug 2021 654th sean-niemann 🇺🇸 556 115 8ms 18 Sep 2023 655th CaedenHarper 🇨🇦 556 119 468ms 10 Dec 2024 656th rowboat1 556 130 10ms 11 Jun 2022 656th georgehulme 556 130 13ms 5 Oct 2022 658th jgbaldwinbrown 556 146 3ms 21 Jul 2022 659th CaedenHarper 🇨🇦 555 218 342ms 2 Nov 2025 660th c0d3-4-F00d 🇩🇪 552 147 2ms 5 Dec 2021 661st Andriamanitra 🇫🇮 551 104 50ms 1 Sep 2022 662nd scpchicken 🇵🇼 551 107 5ms 10 Mar 2023 663rd dionjw 551 131 12ms 22 Mar 2022 663rd za3k 551 131 14ms 12 Oct 2022 663rd mossprescott 551 131 11ms 18 Jan 2023 663rd SB-945 551 131 12ms 14 Jul 2023 663rd suhren 551 131 12ms 1 Oct 2023 668th CatsAreFluffy 551 185 56ms 30 Dec 2022 669th ian-h-chamberlain 🇺🇸 551 271 54ms 2 Nov 2025 670th MeWhenI 🇻🇦 551 437 12ms 28 Nov 2023 671st p-vf 🇨🇭 549 162 429ms 24 Feb 2022 671st SpareManiKatti 549 162 362ms 7 Apr 2025 673rd sergioabreu-g 548 247 311ms 20 Jun 2025 674th Shanethegamer 🇺🇸 547 117 8ms 5 Nov 2022 675th fuzzylojik-golf 🇺🇸 547 121 743ms 6 Jul 2025 676th CedricGebistorf 547 132 10ms 7 Feb 2022 676th FlorianCassayre 🇫🇷 547 132 14ms 29 Oct 2022 676th PaulMWeiser 547 132 11ms 8 Mar 2023 676th yuchuehw 547 132 13ms 21 Jan 2024 676th RaBa21 🇭🇺 547 132 13ms 11 Aug 2025 681st KatieLG 🇬🇧 546 138 1,670ms 2 Sep 2021 682nd tomh1012 544 150 12ms 23 Aug 2021 682nd JTH1999 544 150 11ms 11 Apr 2023 684th snoozingnewt 🇨🇦 543 121 224ms 8 days ago 685th bastienvoirin 🇫🇷 543 133 11ms 14 Sep 2021 685th adoxography 543 133 13ms 28 Sep 2021 685th martinnorling 🇸🇪 543 133 10ms 25 Feb 2022 688th Shnapster 542 164 430ms 28 Sep 2023 689th johanrosenson 541 151 11ms 8 Dec 2021 690th zbreit 🇺🇸 539 134 14ms 6 May 2023 690th yousefalizadeh 539 134 16ms 7 Apr 2024 692nd janbehrens 🇩🇪 539 165 431ms 21 Nov 2021 693rd ovs-code 🇩🇪 537 136 4ms 27 Sep 2024 694th LukeBridges 🇬🇧 537 152 11ms 11 Apr 2024 695th postie77 536 166 463ms 19 May 2023 696th rschwa6308 🇺🇸 535 135 11ms 5 May 2023 696th Bmrl7 535 135 11ms 29 Mar 2024 696th moustave 535 135 10ms 29 Nov 2024 696th LostSyntax21 🇬🇧 535 135 10ms 11 days ago 700th CaedenHarper 🇨🇦 534 168 3ms 23 Aug 2025 701st BlankSpruce 531 136 11ms 7 Sep 2022 702nd Florian-Mt 530 154 11ms 9 Jul 2024 703rd dokutan 530 245 3ms 23 Feb 2025 704th The3gs 527 137 14ms 16 Aug 2023 704th alexjurkiewicz 🇦🇺 527 137 11ms 7 Nov 2023 704th ahmetdemirag 🇨🇾 527 137 12ms 12 Jul 2024 707th Giga-Bowser 527 155 11ms 6 Jan 2022 707th smclaughlin-cf 527 155 11ms 6 May 2025 709th adriweb 🇫🇷 527 176 3ms 9 Aug 2023 710th billings7 🇬🇧 526 169 414ms 21 Nov 2021 710th c0d3-4-F00d 🇩🇪 526 169 428ms 21 Nov 2021 712th msbranicky 526 247 3ms 11 Aug 2023 713th Yewzir 🇧🇪 525 194 580ms 4 Feb 2023 714th NicoAdams 523 138 10ms 25 Nov 2021 714th bbakersmith 523 138 11ms 6 Jun 2022 714th jacekwladzinski 523 138 10ms 8 Oct 2025 717th bitsandbeyond 🇳🇱 523 172 122ms 23 hours ago 718th Yewzir 🇧🇪 523 197 10ms 18 Dec 2024 719th PlatoHero 522 119 223ms 11 Dec 2023 720th Mabeloid 🇳🇴 521 127 483ms 18 Sep 2024 First Prev 641–720 of 1,268 Next Last