The Calendar hole will go live in approximately 5 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 481st c0d3-4-F00d 🇩🇪 642 132 11ms 22 Sep 2021 482nd MeWhenI 🇻🇦 641 187 16ms 17 Nov 2021 483rd Troon 640 149 11ms 16 Dec 2024 484th adamnielson42 🇺🇸 636 150 10ms 22 Aug 2023 484th Anonymousellama21 636 150 11ms 7 Mar 2024 486th the-zammers 635 234 157ms 15 Oct 2023 487th KatieLG 🇬🇧 634 132 567ms 30 Sep 2025 488th mousetail 🇳🇱 633 83 3ms 13 Dec 2022 489th Natanaelel 🇸🇪 633 134 11ms 3 Sep 2021 490th snoozingnewt 🇨🇦 632 176 127ms 16 days ago 491st snoozingnewt 🇨🇦 628 141 75ms 16 days ago 492nd mossprescott 627 152 11ms 18 Jan 2023 493rd tobeannouncd 627 237 153ms 5 Jan 2024 494th hemphen 626 153 398ms 30 Aug 2022 495th edsrzf 🇳🇿 625 225 7ms 12 days ago 496th CedricGebistorf 619 154 17ms 10 Mar 2022 496th ndren 619 154 10ms 3 Aug 2025 498th janbehrens 🇩🇪 618 177 63ms 20 Nov 2022 499th djeedjay 🇳🇱 615 140 2ms 5 Sep 2021 500th msbranicky 615 155 17ms 31 Aug 2023 501st commandblockguy 🇺🇸 611 156 14ms 4 Sep 2022 501st annaproxy 611 156 11ms 29 Nov 2022 501st andrewjc2000 611 156 13ms 24 Jun 2025 504th MeWhenI 🇻🇦 607 126 22ms 18 Nov 2023 505th InigoK 🇺🇸 607 157 22ms 10 Jul 2023 506th BlankSpruce 604 158 13ms 31 Aug 2025 507th neihousaigaai 600 159 10ms 5 Apr 2025 508th annaproxy 599 200 14ms 29 Nov 2022 509th MWI-polygolf 597 82 45ms 6 Dec 2023 510th janbehrens 🇩🇪 597 142 11ms 17 Jun 2023 511th MWI-polygolf 597 158 5ms 7 Dec 2023 512th janbehrens 🇩🇪 597 171 584ms 24 Mar 2022 513th vishwathg 596 160 14ms 12 Oct 2023 514th emgordon154 595 199 3ms 4 Sep 2025 515th MeWhenI 🇻🇦 593 148 3ms 2 Oct 2022 516th CatsAreFluffy 592 185 56ms 30 Dec 2022 517th jgbaldwinbrown 590 146 3ms 21 Jul 2022 518th dokutan 590 180 376ms 7 Nov 2025 519th janbehrens 🇩🇪 589 139 7ms 17 Jun 2023 520th FlorianCassayre 🇫🇷 589 162 12ms 24 Sep 2023 521st h3ra993huskp 🇯🇵 589 191 797ms 26 days ago 522nd Shanethegamer 🇺🇸 588 97 131ms 8 Dec 2021 523rd c0d3-4-F00d 🇩🇪 586 147 2ms 5 Dec 2021 524th commandblockguy 🇺🇸 585 143 602ms 1 Sep 2025 525th lelbal 581 164 14ms 23 Sep 2025 526th janbehrens 🇩🇪 581 165 431ms 21 Nov 2021 527th namelessiw 578 165 23ms 15 Jan 2024 527th Just4FunCoder 578 165 11ms 18 Jun 2025 529th voytxt 🇨🇿 577 147 12ms 12 Apr 2025 530th dokutan 577 226 8ms 4 May 2024 531st Yewzir 🇧🇪 574 166 15ms 15 Feb 2024 532nd BREMAUCY 🇫🇷 573 146 600ms 41 mins ago 533rd elgan65536 573 237 328ms 5 Mar 2024 534th adoxography 572 120 54ms 28 Sep 2021 535th MeWhenI 🇻🇦 571 155 4ms 13 Aug 2024 536th kmathis22 571 197 1,393ms 21 days ago 537th ListeriaM 570 156 3ms 24 Aug 2023 538th jakobkordez 🇸🇮 568 168 34ms 28 Nov 2022 539th olleicua 🇺🇸 567 121 44ms 24 Feb 2024 540th snoozingnewt 🇨🇦 567 135 22ms 16 days ago 541st billings7 🇬🇧 567 169 414ms 21 Nov 2021 541st c0d3-4-F00d 🇩🇪 567 169 428ms 21 Nov 2021 543rd jared-hughes 566 109 43ms 25 Sep 2021 544th rak1507 🇬🇧 564 169 11ms 3 Mar 2023 544th rsgray 564 169 10ms 12 Jan 2024 546th MeWhenI 🇻🇦 564 241 188ms 17 Feb 2022 547th janbehrens 🇩🇪 562 136 12ms 29 Aug 2021 548th BalaM314 562 151 11ms 1 Mar 2025 549th OllieBoyne 🇬🇧 561 170 11ms 24 Aug 2021 549th TobyBoyne 🇬🇧 561 170 13ms 24 Aug 2021 549th Kloppermand 🇩🇰 561 170 13ms 30 Aug 2021 549th ZakkkkAttackkkk 🇵🇭 561 170 17ms 30 Jul 2023 549th Emutis 🇱🇹 561 170 11ms 4 Nov 2025 554th snoozingnewt 🇨🇦 559 122 224ms 16 days ago 555th Indivicivet 558 171 20ms 24 Oct 2021 555th nullie 558 171 12ms 5 Jun 2022 555th aalec 558 171 10ms 4 May 2024 558th ian-h-chamberlain 🇺🇸 558 319 54ms 2 Nov 2025 559th duckyluuk 🇳🇱 556 187 12ms 27 Nov 2025 560th Andrey-Plotnikov 554 153 11ms 20 Jun 2025 First Prev 481–560 of 1,276 Next Last