The Calendar hole will go live in approximately 13 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 400th Ripick 764 148 378ms 24 Feb 2025 402nd emgordon154 763 156 110ms 14 days ago 403rd tobeannouncd 763 159 142ms 2 Jan 2024 404th uttumuttu 🇫🇮 762 116 10ms 7 Jan 2022 404th targrik 762 116 9ms 23 Mar 2025 406th nwellnhof 🇩🇪 761 101 693ms 12 Oct 2024 407th dokutan 759 92 407ms 15 Aug 2024 408th roland-golf 759 175 259ms 1 Nov 2022 409th Irratix 🇳🇱 759 176 2ms 13 Jun 2022 410th kmathis22 759 232 591ms 7 Oct 2025 411th ovs-code 🇩🇪 758 40 33ms 26 Aug 2023 411th 2bular 758 40 34ms 10 days ago 413th aadenboy 🇺🇸 758 148 3ms 2 hours ago 414th GrayJoKing 🇦🇺 757 104 134ms 9 Dec 2023 415th southpolenator 756 202 446ms 15 Jun 2023 416th Attero 🇸🇪 755 117 10ms 21 Oct 2020 416th ArmaanAS 755 117 9ms 24 Mar 2021 416th ScottHamper 755 117 9ms 25 Jun 2021 416th itsh01 755 117 9ms 10 Apr 2022 416th eranws 755 117 9ms 13 Oct 2022 416th inventshah 755 117 9ms 14 Nov 2022 416th makinde 755 117 9ms 19 Nov 2022 416th voytxt 🇨🇿 755 117 9ms 15 Jul 2023 416th duckyluuk 🇳🇱 755 117 9ms 25 Mar 2024 425th m-tkach 🇺🇦 755 177 2ms 23 May 2022 425th Alex-x90 🇺🇸 755 177 1ms 15 Jul 2023 427th rucin93 🇵🇱 752 167 2ms 9 Jun 2025 428th DialFrost 🇸🇬 752 323 473ms 6 Mar 2025 429th HumanoidCPU 751 93 361ms 1 Nov 2024 430th arjanadriaanse 🇳🇱 751 149 18ms 28 Sep 2023 431st southpolenator 750 178 2ms 15 Jun 2023 432nd nathanadams 🇳🇿 749 118 9ms 8 Jul 2021 432nd Natanaelel 🇸🇪 749 118 8ms 7 Aug 2021 432nd igmcdowell 749 118 9ms 14 Nov 2021 435th marcin7Cd 749 162 147ms 5 Oct 2020 435th ReidZ3 🇺🇸 749 162 145ms 30 Nov 2020 437th SmartK8 🇨🇿 749 194 360ms 30 Oct 2022 438th sean-niemann 🇺🇸 749 204 531ms 31 Dec 2023 439th stefangimmillaro 749 211 269ms 25 Sep 2023 440th typeswitch-dev 🇵🇹 748 116 5ms 4 Aug 2023 441st dokutan 748 150 3ms 22 Apr 2024 442nd Shanethegamer 🇺🇸 748 181 508ms 14 Jul 2023 443rd argusdusty 🇺🇸 745 212 275ms 25 Dec 2020 444th ovs-code 🇩🇪 743 106 67ms 19 Sep 2023 444th primo-ppcg 🇹🇭 743 106 75ms 15 Oct 2023 446th Shanethegamer 🇺🇸 743 107 921ms 24 Mar 2023 446th emgordon154 743 107 998ms 20 Nov 2024 448th neihousaigaai 743 119 9ms 14 Mar 2022 449th Shanethegamer 🇺🇸 742 133 25ms 8 Sep 2021 450th tsunderu 🇯🇵 742 180 2ms 22 Sep 2021 450th sean-niemann 🇺🇸 742 180 2ms 31 Dec 2023 452nd kkoenig 742 206 513ms 20 Dec 2023 453rd JGDoerrer 742 226 209ms 22 Jan 2022 454th sisyphus-ppcg 🇦🇺 741 105 190ms 13 Oct 2023 455th CornerMercury 🇬🇧 740 161 105ms 21 days ago 456th marcin7Cd 739 169 10ms 8 Feb 2021 457th CaedenHarper 🇨🇦 738 197 396ms 17 Oct 2025 458th emplv 🇱🇻 738 214 272ms 8 Jan 2024 459th hiichbindermax 737 104 17ms 24 Feb 2022 459th jeff-at-tamer-dot-codes 🇺🇸 737 104 10ms 18 May 2023 459th Player01osu 737 104 11ms 29 Oct 2023 459th robin-scragg 737 104 10ms 9 Oct 2025 463rd HumanoidCPU 737 120 9ms 13 Apr 2025 464th MeWhenI 🇻🇦 736 108 1,112ms 12 May 2023 465th Shanethegamer 🇺🇸 736 203 3ms 10 Sep 2022 466th bac0id 735 208 2,859ms 27 Jun 2024 467th Yewzir 🇧🇪 735 301 1,733ms 17 May 2024 468th MeWhenI 🇻🇦 734 153 5ms 28 May 2023 469th MeWhenI 🇻🇦 734 171 41ms 4 Sep 2024 470th kkoenig 734 182 2ms 19 Dec 2023 471st Steffan153 🇫🇮 732 77 40ms 13 Aug 2024 472nd vhoulbreque 🇫🇷 730 105 1,247ms 15 days ago 473rd Heathcorp 🇦🇺 730 183 2ms 11 Apr 2022 473rd snoozingnewt 🇨🇦 730 183 2ms 23 Sep 2023 473rd madex 🇩🇪 730 183 2ms 9 Jul 2024 476th janAkali 🇷🇺 729 155 377ms 28 Jan 2025 477th Alex-x90 🇺🇸 728 210 410ms 15 Jul 2023 477th m-tkach 🇺🇦 728 210 484ms 18 Jul 2023 479th brimstonetrader 727 167 144ms 31 Jan 2024 480th aliakseikalosha 727 200 340ms 21 Nov 2021 First Prev 401–480 of 1,293 Next Last
