The Calendar hole will go live in approximately 8 days. Why not try and solve it ahead of time?
φ 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 481st emplv 🇱🇻 876 81 118ms 11 Apr 2023 482nd Steffan153 🇫🇮 876 84 563ms 23 Jul 2024 482nd sean-niemann 🇺🇸 876 84 473ms 14 Mar 2025 484th primo-ppcg 🇹🇭 876 267 401ms 6 Aug 2025 485th marcin7Cd 875 57 5ms 8 Feb 2021 485th AlephSquirrel 875 57 5ms 3 Oct 2024 487th ovs-code 🇩🇪 875 165 2,882ms 1 Jul 2025 488th jared-hughes 874 55 23ms 6 Oct 2021 488th GeorgeStechman 🇬🇧 874 55 153ms 17 Jun 2022 488th two-bad 🇬🇧 874 55 59ms 4 Dec 2023 488th Lv0Sys 🇵🇱 874 55 26ms 8 Jun 2025 492nd inventshah 874 673 18ms 18 Nov 2022 493rd MeWhenI 🇻🇦 872 44 38ms 14 Feb 2025 493rd DialFrost 🇸🇬 872 44 40ms 15 Feb 2025 495th DialFrost 🇸🇬 872 51 324ms 29 Jul 2024 495th Steffan153 🇫🇮 872 51 797ms 10 Aug 2024 497th primo-ppcg 🇹🇭 870 153 176ms 20 Jan 2022 498th stefangimmillaro 869 104 436ms 16 Sep 2023 499th jared-hughes 868 119 8ms 23 Sep 2025 500th andersk 🇺🇸 867 165 136ms 29 Nov 2022 500th ovs-code 🇩🇪 867 165 136ms 23 Apr 2025 502nd iczelia 🇩🇪 864 35 52ms 14 Oct 2025 503rd emgordon154 864 137 488ms 28 Mar 2025 504th FortuiteMan 🇫🇷 863 58 144ms 29 Sep 2025 505th lifthrasiir 🇰🇷 862 58 400ms 3 Dec 2024 505th Babafaba 862 58 387ms 4 Nov 2025 507th geofft 862 60 10ms 13 Dec 2020 507th SniperSmiley 🇺🇸 862 60 75ms 1 Jun 2022 507th glesnick 862 60 28ms 18 Aug 2022 507th FlorianCassayre 🇫🇷 862 60 81ms 8 Nov 2022 507th inverseLorentz 🇦🇺 862 60 66ms 10 Apr 2024 512th Lydxn 🇨🇦 860 58 5ms 6 Jul 2022 512th Steffan153 🇫🇮 860 58 4ms 5 Mar 2023 512th fuzzylojik-golf 🇺🇸 860 58 5ms 4 Aug 2025 515th ovs-code 🇩🇪 859 92 184ms 23 Feb 2025 516th fuzzylojik-golf 🇺🇸 859 96 452ms 24 Sep 2025 516th sean-niemann 🇺🇸 859 96 446ms 25 Sep 2025 516th kmathis22 859 96 435ms 10 Nov 2025 519th galloj 🇨🇿 859 685 92ms 1 Mar 2023 520th MeWhenI 🇻🇦 858 44 3ms 20 Aug 2024 521st andersk 🇺🇸 858 56 24ms 21 Mar 2020 521st AlephSquirrel 858 56 10ms 15 Nov 2021 523rd emgordon154 855 62 1,036ms 14 Oct 2025 524th Indivicivet 854 42 253ms 30 Mar 2021 525th fuzzylojik-golf 🇺🇸 853 38 1,023ms 14 Sep 2025 525th snoozingnewt 🇨🇦 853 38 1,049ms 16 Oct 2025 527th MeWhenI 🇻🇦 853 106 437ms 8 Dec 2022 528th ZakkkkAttackkkk 🇵🇭 852 27 48ms 26 Dec 2021 528th j-Ewan 852 27 48ms 17 Mar 2022 530th MeWhenI 🇻🇦 852 69 1,261ms 8 Jun 2023 531st MeWhenI 🇻🇦 849 93 203ms 17 Nov 2022 532nd DialFrost 🇸🇬 848 113 251ms 24 Sep 2024 533rd daedals 847 61 24ms 5 Jun 2019 533rd argusdusty 🇺🇸 847 61 10ms 31 Dec 2020 533rd jiaminglimjm 🇲🇾 847 61 10ms 9 Jan 2021 533rd commandblockguy 🇺🇸 847 61 9ms 6 Sep 2022 533rd falsidge 847 61 9ms 20 Jun 2023 533rd piano-miles 847 61 9ms 30 Dec 2023 533rd mathisfun271 847 61 9ms 13 Feb 2024 540th DialFrost 🇸🇬 845 107 595ms 22 Jul 2025 541st edsrzf 🇳🇿 844 104 220ms 16 days ago 542nd BBoehm 🇩🇪 843 57 26ms 24 Feb 2021 542nd MeWhenI 🇻🇦 843 57 27ms 28 Sep 2021 542nd CaedenHarper 🇨🇦 843 57 26ms 15 Aug 2025 545th nwellnhof 🇩🇪 841 98 525ms 25 Sep 2025 546th sean-niemann 🇺🇸 841 126 259ms 27 Mar 2025 547th sean-niemann 🇺🇸 841 170 139ms 8 Jun 2025 548th SirBogman 🇺🇸 840 127 325ms 19 Jun 2020 548th sean-niemann 🇺🇸 840 127 359ms 29 Aug 2023 548th CaedenHarper 🇨🇦 840 127 262ms 10 Nov 2025 551st marshallward 🇺🇸 837 121 218ms 2 Nov 2023 552nd stefangimmillaro 837 159 1,108ms 25 May 2023 553rd MeWhenI 🇻🇦 836 88 577ms 28 Feb 2022 554th yokasuretsu 834 62 47ms 19 Apr 2018 554th namelessiw 834 62 27ms 28 Feb 2024 556th bendiscz 834 128 273ms 20 Apr 2020 556th doge1338 834 128 343ms 20 Mar 2021 556th emplv 🇱🇻 834 128 284ms 20 Dec 2022 559th ovs-code 🇩🇪 834 142 508ms 29 Mar 2025 560th primo-ppcg 🇹🇭 831 157 274ms 16 Jan 2021 First Prev 481–560 of 2,433 Next Last