The Calendar hole will go live in approximately 6 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 561st ovs-code 🇩🇪 834 142 508ms 29 Mar 2025 562nd primo-ppcg 🇹🇭 831 157 274ms 16 Jan 2021 563rd sean-niemann 🇺🇸 830 110 658ms 15 Jul 2025 564th DialFrost 🇸🇬 829 56 151ms 3 Aug 2024 565th inventshah 829 58 10ms 27 May 2021 565th emgordon154 829 58 9ms 30 Nov 2021 565th daniel-pedersen 🇸🇪 829 58 9ms 6 Mar 2022 565th DialFrost 🇸🇬 829 58 24ms 29 Jul 2024 569th flawr 827 69 124ms 2 Jan 2019 570th DialFrost 🇸🇬 827 89 552ms 29 Jul 2024 571st cduerm 827 129 275ms 12 May 2020 572nd billings7 🇬🇧 822 110 395ms 21 Nov 2021 572nd Yewzir 🇧🇪 822 110 430ms 6 Jun 2024 574th o0lit3 🇺🇸 821 28 41ms 29 Sep 2021 574th tidalDisruptionEvent 🇨🇦 821 28 40ms 10 Mar 2023 574th CatsAreFluffy 821 28 46ms 6 Jan 2024 577th jhu04 821 63 9ms 24 Sep 2022 577th Command-Master 821 63 9ms 23 Sep 2023 579th MeWhenI 🇻🇦 821 130 274ms 9 Feb 2023 580th commandblockguy 🇺🇸 820 61 415ms 15 Jan 2024 581st Steffan153 🇫🇮 817 59 5ms 12 Dec 2023 581st dokutan 817 59 5ms 31 Dec 2023 581st DialFrost 🇸🇬 817 59 6ms 16 Dec 2024 581st kg583 🇺🇸 817 59 5ms 15 Sep 2025 585th SirBogman 🇺🇸 817 72 1,283ms 4 Jan 2022 586th MeWhenI 🇻🇦 816 101 1,516ms 7 Nov 2025 586th edsrzf 🇳🇿 816 101 543ms 17 Nov 2025 588th annaproxy 815 44 2,106ms 28 Jan 2022 589th piano-miles 815 59 15ms 19 Feb 2023 589th CatsAreFluffy 815 59 10ms 19 Feb 2023 591st namelessiw 815 111 371ms 21 Jul 2025 592nd DialFrost 🇸🇬 810 125 51ms 7 May 2025 593rd LucasBertocchini 808 64 9ms 11 Dec 2020 593rd MaxElf999 808 64 10ms 15 Feb 2024 593rd KasperKivimaeki 🇫🇮 808 64 75ms 16 Jul 2025 596th DialFrost 🇸🇬 808 102 537ms 26 Sep 2025 596th stefangimmillaro 808 102 565ms 6 Oct 2025 598th SirBogman 🇺🇸 808 112 446ms 21 Nov 2021 599th elgan65536 808 132 283ms 18 Nov 2023 600th edsrzf 🇳🇿 808 140 77ms 2 days ago 601st namelessiw 807 62 420ms 5 Mar 2024 602nd ovs-code 🇩🇪 805 62 5ms 11 Mar 2023 603rd ovs-code 🇩🇪 804 60 381ms 10 Dec 2023 604th DialFrost 🇸🇬 803 66 925ms 23 Aug 2024 605th albanian-laundromat 803 141 85ms 2 days ago 606th cywong-amino 🇭🇰 801 60 37ms 2 Jul 2020 606th didion0 🇺🇸 801 60 10ms 9 Feb 2022 606th dmrichwa 🇺🇸 801 60 15ms 15 Jun 2022 609th annaproxy 800 113 470ms 5 Apr 2022 609th CaedenHarper 🇨🇦 800 113 923ms 19 Oct 2025 611th MeWhenI 🇻🇦 797 89 125ms 15 Oct 2022 612th bwenstar 795 65 10ms 9 Aug 2022 612th nstearns96 🇬🇧 795 65 10ms 15 Sep 2023 612th GeorgeStechman 🇬🇧 795 65 44ms 6 Jan 2024 615th prplz 🇦🇺 794 56 553ms 25 Jun 2020 616th namelessiw 793 104 449ms 7 Oct 2025 617th roguh 🇬🇹 792 63 5ms 26 Jan 2024 618th primo-ppcg 🇹🇭 791 133 60ms 13 days ago 618th sean-niemann 🇺🇸 791 133 68ms 2 days ago 620th DialFrost 🇸🇬 790 161 1,713ms 15 Sep 2025 621st MeWhenI 🇻🇦 789 43 41ms 29 Dec 2024 622nd primo-ppcg 🇹🇭 787 37 38ms 6 Dec 2020 623rd ovs-code 🇩🇪 787 59 235ms 3 Aug 2024 623rd emgordon154 787 59 123ms 10 Aug 2024 625th Yax42 🇫🇷 786 115 421ms 25 Dec 2024 626th duckyluuk 🇳🇱 785 105 420ms 25 Sep 2025 627th SirBogman 🇺🇸 785 134 61ms 25 May 2023 628th petar-donchev 783 66 76ms 3 Sep 2019 628th za3k 783 66 11ms 19 Oct 2022 628th qpwoeirut 783 66 12ms 14 Aug 2025 631st lifthrasiir 🇰🇷 783 316 1,507ms 15 Dec 2024 632nd jared-hughes 782 73 123ms 15 Sep 2023 633rd MeWhenI 🇻🇦 781 57 304ms 14 Jul 2024 634th ovs-code 🇩🇪 780 91 172ms 9 Jul 2024 634th DialFrost 🇸🇬 780 91 136ms 23 Mar 2025 636th MeWhenI 🇻🇦 779 68 961ms 12 May 2023 637th KasperKivimaeki 🇫🇮 779 135 66ms 20 Nov 2025 638th Herbert00709 🇵🇱 777 133 13ms 7 Jun 2024 639th acotis 777 184 153ms 28 Jun 2025 640th MeWhenI 🇻🇦 776 39 46ms 13 Jul 2024 First Prev 561–640 of 2,419 Next Last