The Calendar hole will go live in approximately 10 days. Why not try and solve it ahead of time?
Intersection 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 560th janbehrens 🇩🇪 691 128 9ms 2 Dec 2021 560th dokutan 691 128 8ms 15 Jun 2025 563rd Irratix 🇳🇱 691 221 531ms 3 Jan 2022 564th Rubiksmath 690 111 20ms 26 Aug 2024 565th btjones0 690 117 10ms 9 Jan 2021 566th KatieLG 🇬🇧 689 163 4ms 19 May 2021 567th KatieLG 🇬🇧 688 82 52ms 2 Oct 2025 568th snoozingnewt 🇨🇦 686 123 283ms 14 Oct 2025 569th ovs-code 🇩🇪 685 102 518ms 19 days ago 570th Laellekoenig 685 129 9ms 14 Nov 2025 570th alexsave 685 129 10ms 15 Nov 2025 572nd Shanethegamer 🇺🇸 685 165 361ms 6 Nov 2021 573rd jared-hughes 685 223 2,799ms 23 Oct 2022 573rd MateuszPietrzak 🇵🇱 685 223 453ms 9 Jan 2024 575th bbonenfant 685 245 224ms 21 Nov 2020 576th betaveros 684 38 82ms 10 Aug 2022 577th sisyphus-ppcg 🇦🇺 684 112 21ms 21 days ago 577th zacjl 684 112 26ms 20 days ago 577th xnor-gate 684 112 21ms 18 days ago 580th cbrt-x 683 178 145ms 19 Sep 2023 581st lynn 682 164 14ms 17 Nov 2021 582nd dokutan 682 184 43ms 4 Oct 2024 583rd janbehrens 🇩🇪 682 219 2ms 14 Sep 2022 584th iznax 680 130 9ms 7 Oct 2020 584th stefangimmillaro 680 130 11ms 20 Jun 2023 586th adriweb 🇫🇷 680 165 2ms 14 Sep 2023 587th 386asm 🇺🇸 680 223 43ms 27 Apr 2023 588th csharpython 679 83 39ms 16 Oct 2025 589th JDiLenarda 🇫🇷 679 214 354ms 18 Nov 2023 590th Steffan153 🇫🇮 678 103 493ms 21 Jun 2024 591st dokutan 676 133 8ms 5 Jul 2024 592nd billings7 🇬🇧 676 215 334ms 21 Nov 2021 593rd Waffle3z 675 131 9ms 8 Jul 2021 593rd DayDun 🇸🇪 675 131 9ms 19 Jan 2023 593rd DanielVenable 675 131 10ms 7 Aug 2025 596th djeedjay 🇳🇱 675 198 2ms 25 Oct 2020 596th LorenzoDeGaspari 675 198 2ms 2 May 2024 598th snoozingnewt 🇨🇦 674 197 111ms 2 Oct 2025 599th jared-hughes 673 120 104ms 17 Jul 2022 600th snoozingnewt 🇨🇦 673 227 3,130ms 6 Oct 2025 601st Jacob385 672 114 17ms 24 Feb 2024 601st Seek64 🇩🇪 672 114 18ms 21 days ago 603rd stefangimmillaro 672 167 205ms 18 Sep 2022 604th Pixels4Breakfast 670 132 10ms 2 Feb 2022 604th Lv0Sys 🇵🇱 670 132 10ms 17 days ago 606th jgbaldwinbrown 669 236 273ms 29 Jun 2021 607th edsrzf 🇳🇿 668 168 4ms 6 Oct 2024 608th stefangimmillaro 667 153 4,446ms 31 Oct 2024 608th emgordon154 667 153 4,808ms 24 Jul 2025 610th mdznr 667 199 107ms 14 Dec 2020 611th KatieLG 🇬🇧 667 218 404ms 1 May 2024 612th MeWhenI 🇻🇦 666 193 165ms 29 Apr 2025 613th sisyphus-ppcg 🇦🇺 665 105 511ms 17 Jan 2024 614th L1Wulf 665 133 9ms 4 Feb 2022 614th fitzdotlol 🇺🇸 665 133 9ms 20 Mar 2022 614th LukeBridges 🇬🇧 665 133 9ms 12 Mar 2024 614th wh3n3v3r 🇨🇿 665 133 10ms 8 Nov 2024 614th Palladium02 665 133 9ms 28 May 2025 619th CaedenHarper 🇨🇦 664 265 508ms 3 Oct 2025 620th tatzyr 🇯🇵 663 85 45ms 18 Dec 2024 621st DaDerpDuck 663 169 2ms 20 Jan 2021 622nd saito-ta 🇯🇵 663 238 1,173ms 4 Jul 2022 623rd CatsAreFluffy 662 231 79ms 12 Dec 2022 624th cbrt-x 662 266 460ms 29 Sep 2021 625th BrunoVisnadi 🇧🇷 661 116 41ms 8 Oct 2025 626th LHLaurini 🇧🇷 661 202 2ms 30 Jun 2024 627th verticallity 661 254 177ms 6 Apr 2022 628th Jacob385 659 106 429ms 4 Apr 2024 629th edsrzf 🇳🇿 659 155 3,807ms 25 Oct 2024 630th Yewzir 🇧🇪 659 232 458ms 27 Jan 2024 631st janbehrens 🇩🇪 659 267 433ms 16 May 2023 632nd emgordon154 658 139 5ms 30 Dec 2024 633rd KatieLG 🇬🇧 657 121 1,020ms 25 Apr 2021 634th janbehrens 🇩🇪 657 206 471ms 19 Jul 2022 635th memmaptensor 🇹🇭 657 221 352ms 21 Jan 2022 636th olleicua 🇺🇸 656 86 53ms 25 Mar 2025 637th chlorobenzene12 656 171 2ms 27 Dec 2022 638th raphaelimahorn 655 135 9ms 15 Oct 2020 638th Larento 655 135 10ms 14 Oct 2023 638th helbling 🇨🇭 655 135 10ms 16 Jul 2024 First Prev 561–640 of 1,295 Next Last