The Calendar hole will go live in approximately 2 hours. 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 ArkScript 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 ArkScript 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 CarsonChr 🇺🇸 639 882 10ms 22 Apr 2024 482nd KatieLG 🇬🇧 639 962 4ms 8 Jan 2023 483rd MeWhenI 🇻🇦 639 963 20ms 5 Dec 2021 484th AshyIsMe 🇦🇺 635 755 32ms 18 Apr 2023 485th hiddicop 🇸🇪 635 804 43ms 5 Feb 2021 486th tayloia 🇬🇧 635 887 14ms 21 Mar 2023 487th MeWhenI 🇻🇦 635 944 54ms 13 Aug 2024 488th bbakersmith 635 969 19ms 29 Jul 2021 489th albanian-laundromat 632 891 16ms 25 May 2025 490th eranws 632 892 13ms 23 Oct 2022 491st SirBogman 🇺🇸 631 1,858 53ms 23 Nov 2022 492nd Shanethegamer 🇺🇸 629 943 237ms 30 Apr 2022 493rd alemelis 627 824 741ms 8 Oct 2024 494th TaserTheFox 🇺🇸 625 901 16ms 8 May 2023 495th o0lit3 🇺🇸 624 839 6ms 15 Oct 2020 496th eiburns 619 107 243ms 25 Aug 2023 497th Alex-x90 🇺🇸 619 919 122ms 8 Aug 2023 498th Alex-x90 🇺🇸 618 945 490ms 15 Oct 2023 499th annaproxy 617 261 431ms 22 Oct 2023 500th Babafaba 617 912 14ms 20 Nov 2025 501st BBoehm 🇩🇪 617 913 17ms 1 Mar 2021 501st gnlow 🇰🇷 617 913 17ms 27 Jan 2022 503rd Shanethegamer 🇺🇸 616 947 512ms 24 Sep 2025 504th Shanethegamer 🇺🇸 613 1,003 15ms 8 Sep 2021 505th SirBogman 🇺🇸 612 833 36ms 8 Jun 2022 506th CaedenHarper 🇨🇦 611 955 488ms 4 Oct 2025 507th prplz 🇦🇺 610 988 66ms 9 Jan 2022 508th Waffle3z 608 839 37ms 27 Sep 2020 509th vgamula 🇺🇦 607 927 13ms 16 Mar 2023 510th SirBogman 🇺🇸 605 842 148ms 3 Dec 2021 511th dokutan 601 937 161ms 18 Apr 2025 512th KatieLG 🇬🇧 598 941 11ms 24 Jan 2021 513th gjh71 🇳🇱 597 111 248ms 11 May 2023 514th janbehrens 🇩🇪 597 876 5ms 3 Jan 2021 515th Artemis21 🇬🇧 597 943 40ms 7 Jan 2025 516th MeWhenI 🇻🇦 597 979 5ms 28 May 2023 517th cntkillme 596 958 2ms 26 Sep 2020 518th Shanethegamer 🇺🇸 592 987 4ms 2 Jul 2023 519th CedricGebistorf 589 956 11ms 15 Mar 2022 519th JOrE20 🇺🇸 589 956 11ms 24 days ago 521st iTearo 🇷🇺 589 992 6ms 25 Dec 2020 522nd dylanpyle 586 962 14ms 26 Jun 2020 523rd thehylian 585 963 12ms 25 Dec 2022 523rd ZakkkkAttackkkk 🇵🇭 585 963 12ms 28 Aug 2023 525th KatieLG 🇬🇧 584 965 11ms 15 Apr 2021 525th RDShah 584 965 11ms 27 Nov 2021 525th OllieBoyne 🇬🇧 584 965 11ms 8 May 2022 528th Yewzir 🇧🇪 584 976 8ms 20 Dec 2023 529th ShiraJoseph 🇺🇸 583 967 16ms 30 Apr 2022 530th MeWhenI 🇻🇦 583 976 133ms 15 Oct 2022 531st hiddicop 🇸🇪 582 968 10ms 5 Feb 2021 531st bbakersmith 582 968 12ms 28 Jun 2022 531st StefanHabel 🇨🇦 582 968 10ms 12 Dec 2022 534th cywong-amino 🇭🇰 582 1,003 5ms 23 Jun 2020 535th BREMAUCY 🇫🇷 581 969 10ms 17 Mar 2024 536th Yewzir 🇧🇪 581 970 10ms 16 Apr 2023 537th firegene 🇮🇪 580 971 11ms 30 Dec 2023 538th msbranicky 579 972 10ms 20 Sep 2023 539th RDShah 579 973 11ms 27 Nov 2021 540th SniperSmiley 🇺🇸 578 975 11ms 28 Jul 2022 541st ScottHamper 577 976 9ms 31 May 2021 541st veiko 577 976 11ms 2 Jul 2022 543rd daviddostal 577 980 1,296ms 9 Oct 2022 544th Indivicivet 576 115 249ms 9 May 2022 545th RaBa21 🇭🇺 575 979 17ms 10 Jul 2025 546th orthoplex 🇨🇽 571 116 242ms 31 Mar 2022 547th commandblockguy 🇺🇸 571 131 420ms 1 Sep 2025 548th gallium-gonzollium 571 987 10ms 26 Aug 2024 549th galloj 🇨🇿 571 1,303 3,546ms 3 Mar 2023 550th helbling 🇨🇭 570 988 9ms 12 Mar 2024 551st MichalMarsalek 🇨🇿 569 989 13ms 15 Jan 2024 552nd Ralac07 🇦🇺 569 990 15ms 8 Dec 2024 553rd Yewzir 🇧🇪 568 994 169ms 17 Sep 2023 554th KatieLG 🇬🇧 567 922 996ms 25 Apr 2021 555th prplz 🇦🇺 567 956 2ms 21 Jun 2020 556th Yewzir 🇧🇪 567 1,080 263ms 5 Jan 2024 557th Msleizak 🇫🇷 566 117 219ms 16 Nov 2023 558th taklam 566 996 14ms 6 Jul 2020 559th msbranicky 565 1,085 269ms 20 Sep 2023 560th KatieLG 🇬🇧 564 904 41ms 10 Apr 2022 First Prev 481–560 of 1,259 Next Last