The Calendar hole will go live in approximately 13 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 877th mohammad-sayed-ahmad 671 77 11ms 21 Jul 2024 882nd Yewzir 🇧🇪 666 152 444ms 28 May 2023 883rd h3ra993huskp 🇯🇵 665 124 456ms 18 days ago 884th tomh1012 664 136 410ms 16 Sep 2025 885th ArturLange 663 78 24ms 12 Sep 2018 885th Anthony-Williams-06 663 78 23ms 5 Dec 2022 887th targrik 663 161 324ms 4 Jul 2025 888th MeWhenI 🇻🇦 663 888 4ms 25 May 2022 889th Yewzir 🇧🇪 662 80 940ms 19 Feb 2024 890th prestosilver 🇺🇸 662 156 22ms 23 days ago 891st o0lit3 🇺🇸 656 76 6ms 14 Apr 2021 891st CaedenHarper 🇨🇦 656 76 6ms 10 Aug 2025 891st snoozingnewt 🇨🇦 656 76 6ms 16 Oct 2025 894th LostSyntax21 🇬🇧 654 52 56ms 9 Nov 2025 895th trist224 🇫🇷 654 79 12ms 25 Dec 2022 895th TaserTheFox 🇺🇸 654 79 24ms 27 Mar 2023 895th jacekwladzinski 654 79 11ms 6 Oct 2025 895th nulzo 654 79 12ms 19 Oct 2025 899th DestyNova 🇮🇪 654 81 1,112ms 20 days ago 900th yzhs 🇩🇪 652 55 245ms 13 Sep 2020 901st Alex-x90 🇺🇸 650 159 12ms 2 Apr 2025 902nd CaedenHarper 🇨🇦 648 50 672ms 23 Oct 2025 903rd emgordon154 647 165 263ms 18 Jan 2025 904th MeWhenI 🇻🇦 646 77 4,506ms 2 Dec 2024 905th alangodfrey 646 80 24ms 10 Jun 2019 905th GalladeGuy 🇺🇸 646 80 12ms 23 May 2020 905th kyleclaassen 646 80 12ms 25 May 2023 905th keelimeguy 🇺🇸 646 80 12ms 6 Nov 2023 905th robin-scragg 646 80 23ms 25 Oct 2025 910th cure-honey 🇯🇵 643 166 277ms 24 Jun 2021 911th yzhs 🇩🇪 641 89 113ms 24 Jul 2021 912th iznax 641 141 439ms 21 Nov 2021 913th Andriamanitra 🇫🇮 640 56 208ms 23 Sep 2022 914th snoozingnewt 🇨🇦 639 36 32ms 16 Oct 2025 915th Yewzir 🇧🇪 639 111 123ms 19 Feb 2024 916th Yewzir 🇧🇪 639 167 318ms 5 May 2024 917th Starwort 🇬🇧 638 81 12ms 29 Dec 2019 917th guliyevemil1 🇦🇿 638 81 12ms 16 Apr 2020 917th redbeancola 638 81 12ms 11 Oct 2021 917th stertooy 🇧🇪 638 81 11ms 11 Jun 2024 917th 0dyse 638 81 12ms 29 Apr 2025 922nd m-tkach 🇺🇦 636 279 63ms 27 Jun 2022 923rd AlephSquirrel 634 212 157ms 3 Aug 2023 924th Yewzir 🇧🇪 633 201 1,680ms 1 Jun 2024 925th janbehrens 🇩🇪 632 76 40ms 31 May 2022 926th MeWhenI 🇻🇦 630 202 1,669ms 7 Nov 2025 927th cure-honey 🇯🇵 627 283 62ms 8 Jul 2021 928th hiddicop 🇸🇪 623 83 12ms 30 Jan 2021 928th cbrt-x 623 83 12ms 26 Sep 2021 928th AkashTandon167 623 83 9ms 1 Nov 2021 928th jamespeilunli 623 83 23ms 29 Dec 2021 928th eiburns 623 83 9ms 10 May 2023 928th Vaekor 623 83 9ms 9 Jul 2023 928th WillowWispy 623 83 9ms 20 Mar 2025 935th dokutan 622 946 1ms 22 Apr 2024 936th somebody1234 618 58 268ms 11 Dec 2018 936th voytxt 🇨🇿 618 58 2,640ms 17 Feb 2023 938th janbehrens 🇩🇪 618 119 585ms 1 May 2023 939th primo-ppcg 🇹🇭 617 128 339ms 31 May 2021 940th kirbyyourmom 🇬🇧 615 84 11ms 8 Mar 2021 940th ToE42 615 84 12ms 7 Sep 2021 940th JunkIce 615 84 12ms 1 Oct 2024 943rd andersk 🇺🇸 608 59 2,586ms 4 Mar 2023 943rd mjecke 608 59 2,194ms 3 Jul 2023 945th thisishowmymindworks 🇳🇴 608 79 15ms 17 Oct 2020 946th aiarzhantsev 608 85 725ms 14 Oct 2022 946th glassala 608 85 12ms 25 Dec 2024 948th Shanethegamer 🇺🇸 607 56 44ms 27 Jun 2022 949th Chinay-Domitrix 🇺🇸 606 82 4,425ms 15 Apr 2025 950th Lydxn 🇨🇦 606 136 416ms 4 Apr 2022 951st jgbaldwinbrown 606 176 349ms 24 May 2022 952nd snoozingnewt 🇨🇦 605 972 2ms 26 Jan 2025 953rd BBoehm 🇩🇪 604 142 2,493ms 26 Feb 2021 954th jared-hughes 602 137 441ms 24 Sep 2025 955th juliansiebert 🇩🇪 601 74 516ms 11 Dec 2023 956th twocatsinatrenchcoat 601 86 24ms 15 Apr 2022 956th Drew-j-Smith 601 86 12ms 11 Jan 2023 956th ComputerKWasTaken 🇺🇸 601 86 12ms 5 Sep 2024 956th RaBa21 🇭🇺 601 86 26ms 18 Jul 2025 956th cthierfelder 🇲🇨 601 86 13ms 4 Sep 2025 First Prev 881–960 of 2,440 Next Last