The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
CSS Colors 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 msbranicky 649 1,168 6ms 28 Oct 2023 482nd CarsonChr 🇺🇸 639 882 9ms 22 Apr 2024 483rd KatieLG 🇬🇧 639 962 4ms 8 Jan 2023 484th MeWhenI 🇻🇦 639 963 20ms 5 Dec 2021 485th AshyIsMe 🇦🇺 635 755 32ms 18 Apr 2023 486th tayloia 🇬🇧 635 887 13ms 21 Mar 2023 487th MeWhenI 🇻🇦 635 944 54ms 13 Aug 2024 488th bbakersmith 635 969 19ms 29 Jul 2021 489th hiddicop 🇸🇪 634 804 44ms 5 Feb 2021 490th albanian-laundromat 632 891 16ms 25 May 2025 491st eranws 632 892 12ms 23 Oct 2022 492nd SirBogman 🇺🇸 631 1,858 53ms 23 Nov 2022 493rd Shanethegamer 🇺🇸 629 943 237ms 30 Apr 2022 494th alemelis 627 824 819ms 8 Oct 2024 495th TaserTheFox 🇺🇸 625 901 16ms 8 May 2023 496th o0lit3 🇺🇸 624 839 6ms 15 Oct 2020 497th eiburns 619 107 298ms 25 Aug 2023 498th Alex-x90 🇺🇸 619 919 104ms 8 Aug 2023 499th Alex-x90 🇺🇸 618 945 490ms 15 Oct 2023 500th annaproxy 617 261 431ms 22 Oct 2023 501st Babafaba 617 912 14ms 27 days ago 502nd BBoehm 🇩🇪 617 913 12ms 1 Mar 2021 502nd gnlow 🇰🇷 617 913 14ms 27 Jan 2022 504th Shanethegamer 🇺🇸 616 947 512ms 24 Sep 2025 505th Shanethegamer 🇺🇸 613 1,003 15ms 8 Sep 2021 506th SirBogman 🇺🇸 612 833 35ms 8 Jun 2022 507th CaedenHarper 🇨🇦 611 955 488ms 4 Oct 2025 508th prplz 🇦🇺 610 988 66ms 9 Jan 2022 509th Waffle3z 607 839 41ms 27 Sep 2020 510th vgamula 🇺🇦 607 927 13ms 16 Mar 2023 511th SirBogman 🇺🇸 605 842 267ms 3 Dec 2021 512th dokutan 601 937 162ms 18 Apr 2025 513th KatieLG 🇬🇧 598 941 11ms 24 Jan 2021 514th cntkillme 598 958 2ms 26 Sep 2020 515th gjh71 🇳🇱 597 111 248ms 11 May 2023 516th janbehrens 🇩🇪 597 876 5ms 3 Jan 2021 517th Artemis21 🇬🇧 597 943 40ms 7 Jan 2025 518th MeWhenI 🇻🇦 597 979 5ms 28 May 2023 519th Shanethegamer 🇺🇸 592 987 4ms 2 Jul 2023 520th CedricGebistorf 589 956 11ms 15 Mar 2022 520th JOrE20 🇺🇸 589 956 10ms 10 days ago 522nd iTearo 🇷🇺 589 992 5ms 25 Dec 2020 523rd dylanpyle 586 962 10ms 26 Jun 2020 524th thehylian 585 963 12ms 25 Dec 2022 524th ZakkkkAttackkkk 🇵🇭 585 963 12ms 28 Aug 2023 526th KatieLG 🇬🇧 584 965 10ms 15 Apr 2021 527th Yewzir 🇧🇪 584 976 8ms 20 Dec 2023 528th RDShah 583 965 11ms 27 Nov 2021 528th OllieBoyne 🇬🇧 583 965 11ms 8 May 2022 530th ShiraJoseph 🇺🇸 583 967 11ms 30 Apr 2022 531st MeWhenI 🇻🇦 583 976 98ms 15 Oct 2022 532nd hiddicop 🇸🇪 582 968 10ms 5 Feb 2021 532nd bbakersmith 582 968 12ms 28 Jun 2022 532nd StefanHabel 🇨🇦 582 968 10ms 12 Dec 2022 535th cywong-amino 🇭🇰 582 1,003 4ms 23 Jun 2020 536th BREMAUCY 🇫🇷 581 969 10ms 17 Mar 2024 537th Yewzir 🇧🇪 580 970 10ms 16 Apr 2023 538th firegene 🇮🇪 580 971 11ms 30 Dec 2023 539th msbranicky 579 972 10ms 20 Sep 2023 540th RDShah 579 973 10ms 27 Nov 2021 541st SniperSmiley 🇺🇸 578 975 11ms 28 Jul 2022 542nd ScottHamper 577 976 9ms 31 May 2021 542nd veiko 577 976 9ms 2 Jul 2022 544th daviddostal 577 980 1,296ms 9 Oct 2022 545th Indivicivet 576 115 281ms 9 May 2022 546th RaBa21 🇭🇺 575 979 17ms 10 Jul 2025 547th commandblockguy 🇺🇸 572 131 502ms 1 Sep 2025 548th orthoplex 🇨🇽 571 116 242ms 31 Mar 2022 549th galloj 🇨🇿 571 1,303 3,546ms 3 Mar 2023 550th gallium-gonzollium 570 987 10ms 26 Aug 2024 551st helbling 🇨🇭 570 988 9ms 12 Mar 2024 552nd jacobly0 🇺🇸 570 1,005 2ms 23 Sep 2023 553rd MichalMarsalek 🇨🇿 569 989 13ms 15 Jan 2024 554th Ralac07 🇦🇺 569 990 15ms 8 Dec 2024 555th Yewzir 🇧🇪 568 994 138ms 17 Sep 2023 556th KatieLG 🇬🇧 567 922 996ms 25 Apr 2021 557th prplz 🇦🇺 567 956 2ms 21 Jun 2020 558th Yewzir 🇧🇪 567 1,080 263ms 5 Jan 2024 559th Msleizak 🇫🇷 566 117 265ms 16 Nov 2023 560th taklam 566 996 13ms 6 Jul 2020 First Prev 481–560 of 1,256 Next Last
