The Calendar hole will go live in approximately 10 days. Why not try and solve it ahead of time?
Intersection 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 79th lukegustafson 🇺🇸 896 106 10ms 14 Nov 2023 82nd Waffle3z 896 133 2ms 8 Jul 2021 83rd JayXon 🇺🇸 895 89 1,080ms 17 Jul 2023 84th Steffan153 🇫🇮 895 136 140ms 6 Mar 2024 84th Natanaelel 🇸🇪 895 136 173ms 13 days ago 86th ScottHamper 894 197 466ms 21 days ago 87th primo-ppcg 🇹🇭 893 91 326ms 12 Dec 2020 88th elgan65536 893 188 230ms 27 Oct 2023 89th kg583 🇺🇸 892 117 24ms 20 days ago 90th nwellnhof 🇩🇪 891 57 184ms 7 Oct 2020 91st GrayJoKing 🇦🇺 890 134 2ms 7 Mar 2023 92nd saito-ta 🇯🇵 889 91 58ms 20 May 2022 93rd Bubbler-4 888 101 474ms 16 Jan 2024 93rd pardouin 🇫🇷 888 101 532ms 28 Oct 2024 95th NewDefectus 🇮🇱 888 107 8ms 19 Dec 2021 96th sean-niemann 🇺🇸 888 137 152ms 27 May 2025 97th JayXon 🇺🇸 888 178 251ms 26 May 2025 98th AdrienHache 🇫🇷 887 164 424ms 28 Dec 2024 99th xsot 🇸🇬 885 127 5ms 24 May 2025 100th Destrings2 🇨🇴 883 135 2ms 8 Jul 2021 100th jacobly0 🇺🇸 883 135 3ms 14 Sep 2023 102nd sean-niemann 🇺🇸 883 179 273ms 25 May 2025 103rd annaproxy 882 138 141ms 7 Feb 2022 103rd arjanadriaanse 🇳🇱 882 138 142ms 7 Feb 2022 105th JayXon 🇺🇸 881 116 4,238ms 6 Dec 2024 106th JayXon 🇺🇸 881 151 634ms 20 May 2023 106th MeWhenI 🇻🇦 881 151 114ms 21 Aug 2023 108th btnlq 881 165 362ms 10 Mar 2023 109th btnlq 880 84 5ms 25 Aug 2024 110th Kacarott 🇦🇺 880 103 69ms 16 Sep 2024 111th inventshah 880 153 2ms 2 Dec 2023 112th GrayJoKing 🇦🇺 879 102 500ms 18 Jan 2024 112th JayXon 🇺🇸 879 102 479ms 26 Jan 2024 112th ovs-code 🇩🇪 879 102 518ms 20 days ago 115th pfgithub 879 108 11ms 27 Oct 2020 116th JayXon 🇺🇸 878 129 389ms 23 Jul 2025 117th xsot 🇸🇬 877 119 46ms 21 days ago 117th jared-hughes 877 119 22ms 21 days ago 119th RockOfStone 877 136 2ms 3 Apr 2024 120th edsrzf 🇳🇿 876 123 26ms 22 days ago 121st Lydxn 🇨🇦 875 58 426ms 3 Aug 2023 122nd IanUtley 875 128 15ms 18 Mar 2025 123rd nwellnhof 🇩🇪 874 154 4ms 2 Mar 2023 123rd JohandeRuiter 🇳🇱 874 154 2ms 19 Sep 2023 125th JohandeRuiter 🇳🇱 874 175 461ms 2 Dec 2023 126th ovs-code 🇩🇪 873 96 104ms 13 days ago 127th primo-ppcg 🇹🇭 873 105 5ms 21 Aug 2023 127th edsrzf 🇳🇿 873 105 5ms 22 days ago 129th Steffan153 🇫🇮 871 103 493ms 21 Jun 2024 130th JayXon 🇺🇸 871 108 139ms 31 Oct 2024 130th CaedenHarper 🇨🇦 871 108 856ms 30 Sep 2025 130th xsot 🇸🇬 871 108 807ms 21 days ago 133rd ovs-code 🇩🇪 871 109 9ms 20 Nov 2024 134th edsrzf 🇳🇿 871 110 4ms 20 Nov 2025 135th primo-ppcg 🇹🇭 870 93 863ms 13 Mar 2021 136th jared-hughes 869 140 146ms 11 Sep 2023 137th nwellnhof 🇩🇪 869 182 270ms 24 Aug 2023 137th Steffan153 🇫🇮 869 182 283ms 13 Aug 2024 139th primo-ppcg 🇹🇭 868 144 7ms 29 Jan 2023 139th edsrzf 🇳🇿 868 144 9ms 22 days ago 141st Steffan153 🇫🇮 866 90 652ms 13 Aug 2024 142nd pardouin 🇫🇷 866 118 4,822ms 7 May 2025 143rd AdrienHache 🇫🇷 864 84 127ms 11 Nov 2024 143rd lyphyser 864 84 52ms 1 Feb 2025 145th Steffan153 🇫🇮 864 97 113ms 7 Mar 2024 146th JayXon 🇺🇸 864 149 112ms 24 May 2025 147th primo-ppcg 🇹🇭 863 73 10ms 7 Dec 2020 148th stefangimmillaro 863 154 129ms 19 Nov 2024 149th sean-niemann 🇺🇸 862 104 486ms 21 days ago 150th b-illy 🇬🇧 862 121 43ms 30 Dec 2024 151st kops-cg 862 130 117ms 17 Mar 2025 152nd MeWhenI 🇻🇦 861 144 99ms 7 May 2023 152nd Steffan153 🇫🇮 861 144 101ms 14 Aug 2024 154th Bubbler-4 861 195 221ms 28 Apr 2022 154th emgordon154 861 195 242ms 23 Feb 2025 154th acotis 861 195 235ms 5 Jun 2025 154th lynn 861 195 242ms 28 Oct 2025 158th primo-ppcg 🇹🇭 860 115 26ms 12 Feb 2022 159th sean-niemann 🇺🇸 859 86 5ms 13 Jan 2025 160th bizy-coder 859 119 4,030ms 10 May 2025 First Prev 81–160 of 1,299 Next Last