The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Musical Chords 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 161st ovs-code 🇩🇪 668 112 618ms 20 Jun 2025 162nd bitsandbeyond 🇳🇱 667 213 442ms 11 Nov 2025 163rd roguh 🇬🇹 664 122 12ms 18 Oct 2024 163rd emgordon154 664 122 19ms 26 Oct 2025 165th MarcMush 🇫🇷 663 112 1,013ms 18 Jan 2024 166th stefangimmillaro 663 314 47ms 26 Apr 2025 167th stefangimmillaro 660 188 98ms 24 May 2024 168th ovs-code 🇩🇪 659 123 17ms 20 Jun 2025 169th emgordon154 659 146 4,669ms 26 Oct 2025 170th primo-ppcg 🇹🇭 655 208 244ms 27 Nov 2021 171st primo-ppcg 🇹🇭 652 239 40ms 29 Jan 2023 172nd emgordon154 651 147 9ms 26 Oct 2025 173rd nwellnhof 🇩🇪 648 183 2ms 4 Nov 2021 174th nwellnhof 🇩🇪 646 114 34ms 4 Nov 2021 175th edsrzf 🇳🇿 646 286 43ms 24 days ago 176th duckyluuk 🇳🇱 645 116 436ms 29 Aug 2024 177th MeWhenI 🇻🇦 644 102 41ms 16 Aug 2022 178th lynn 643 126 18ms 18 Feb 2022 178th snoozingnewt 🇨🇦 643 126 17ms 11 days ago 180th lynn 640 117 841ms 17 Feb 2024 180th emgordon154 640 117 442ms 26 Oct 2025 182nd blaztoma 🇱🇹 640 249 107ms 3 days ago 183rd stefangimmillaro 639 125 903ms 13 Nov 2023 184th anter69 🇭🇺 638 103 34ms 14 days ago 185th NewDefectus 🇮🇱 634 151 11ms 18 Nov 2021 186th SirBogman 🇺🇸 627 105 4ms 11 Mar 2022 187th MeWhenI 🇻🇦 623 130 11ms 5 Nov 2021 187th CornerMercury 🇬🇧 623 130 20ms 19 Nov 2025 189th nwellnhof 🇩🇪 620 170 362ms 21 Nov 2021 190th antimon2 🇯🇵 619 120 710ms 9 Nov 2021 191st Seek64 🇩🇪 619 131 17ms 5 Jun 2025 191st KatieLG 🇬🇧 619 131 15ms 3 Oct 2025 193rd snoozingnewt 🇨🇦 614 122 375ms 11 days ago 194th AlephSquirrel 614 132 11ms 31 Jan 2024 195th Steffan153 🇫🇮 614 242 14ms 30 Jul 2024 196th stefangimmillaro 613 277 227ms 26 Nov 2024 197th jared-hughes 612 201 5ms 11 Apr 2022 198th emgordon154 611 72 81ms 17 Nov 2025 199th nwellnhof 🇩🇪 610 108 3ms 13 Nov 2021 200th AdrienHache 🇫🇷 610 173 424ms 20 Aug 2025 201st MeWhenI 🇻🇦 610 305 277ms 6 Jun 2023 202nd 5cw 🇺🇸 609 133 11ms 29 Apr 2024 203rd sean-niemann 🇺🇸 607 234 369ms 14 days ago 204th AlephSquirrel 604 124 512ms 21 Jan 2024 205th stefangimmillaro 603 109 46ms 26 Dec 2024 206th sean-niemann 🇺🇸 602 469 47ms 30 Oct 2023 207th qpwoeirut 600 135 17ms 4 Oct 2025 208th MichalMarsalek 🇨🇿 600 215 570ms 13 Nov 2022 209th SirBogman 🇺🇸 599 250 90ms 27 Jan 2023 210th rucin93 🇵🇱 595 133 137ms 13 May 2025 211th primo-ppcg 🇹🇭 595 218 8ms 22 May 2023 212th Kacarott 🇦🇺 592 235 87ms 23 days ago 213th nwellnhof 🇩🇪 591 132 403ms 4 Nov 2021 214th nwellnhof 🇩🇪 587 112 46ms 3 Nov 2021 215th jared-hughes 587 255 427ms 17 Jul 2022 216th bitsandbeyond 🇳🇱 586 180 402ms 11 Nov 2025 217th jared-hughes 580 165 10ms 11 Apr 2022 217th Yax42 🇫🇷 580 165 10ms 6 Sep 2025 219th MeWhenI 🇻🇦 576 130 366ms 13 Jul 2024 220th ndren 575 141 13ms 21 days ago 221st stefangimmillaro 573 168 4,415ms 26 Nov 2024 222nd KatieLG 🇬🇧 572 131 384ms 6 Oct 2025 223rd annaproxy 567 364 21ms 22 Sep 2023 224th inventshah 565 265 3,155ms 5 Jan 2023 225th stefangimmillaro 564 187 427ms 10 Apr 2025 226th ZakkkkAttackkkk 🇵🇭 563 144 54ms 19 Feb 2025 227th emgordon154 561 141 118ms 10 Aug 2024 228th blaztoma 🇱🇹 558 231 7ms 3 days ago 229th MeWhenI 🇻🇦 557 172 10ms 1 Mar 2022 230th SirBogman 🇺🇸 556 213 2ms 27 Jan 2023 231st neel11235813 555 146 19ms 10 Oct 2023 232nd MeWhenI 🇻🇦 554 216 137ms 5 Nov 2021 233rd GrayJoKing 🇦🇺 548 109 232ms 23 Jan 2023 234th tayloia 🇬🇧 541 177 11ms 23 May 2023 235th bricknellj 540 150 24ms 23 May 2024 236th primo-ppcg 🇹🇭 536 182 24ms 11 Feb 2022 237th itsh01 535 179 10ms 25 May 2022 238th MeWhenI 🇻🇦 531 389 17ms 18 Nov 2021 239th primo-ppcg 🇹🇭 530 153 11ms 20 Nov 2021 240th commandblockguy 🇺🇸 526 154 12ms 22 Aug 2023 First Prev 161–240 of 590 Next Last