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 881st MeWhenI 🇻🇦 663 887 4ms 10 hours ago 882nd Yewzir 🇧🇪 662 80 940ms 19 Feb 2024 883rd prestosilver 🇺🇸 662 156 22ms 24 Nov 2025 884th o0lit3 🇺🇸 656 76 6ms 14 Apr 2021 884th CaedenHarper 🇨🇦 656 76 6ms 10 Aug 2025 884th snoozingnewt 🇨🇦 656 76 6ms 16 Oct 2025 887th trist224 🇫🇷 654 79 12ms 25 Dec 2022 887th TaserTheFox 🇺🇸 654 79 24ms 27 Mar 2023 887th jacekwladzinski 654 79 11ms 6 Oct 2025 887th nulzo 654 79 12ms 19 Oct 2025 891st DestyNova 🇮🇪 654 81 1,112ms 27 days ago 892nd LostSyntax21 🇬🇧 652 52 49ms 9 Nov 2025 893rd yzhs 🇩🇪 652 55 184ms 13 Sep 2020 894th Alex-x90 🇺🇸 650 159 12ms 2 Apr 2025 895th CaedenHarper 🇨🇦 648 50 672ms 23 Oct 2025 896th emgordon154 647 165 263ms 18 Jan 2025 897th MeWhenI 🇻🇦 646 77 4,446ms 2 Dec 2024 898th alangodfrey 646 80 24ms 10 Jun 2019 898th GalladeGuy 🇺🇸 646 80 12ms 23 May 2020 898th kyleclaassen 646 80 12ms 25 May 2023 898th keelimeguy 🇺🇸 646 80 12ms 6 Nov 2023 898th robin-scragg 646 80 23ms 25 Oct 2025 903rd cure-honey 🇯🇵 643 166 277ms 24 Jun 2021 904th yzhs 🇩🇪 641 89 113ms 24 Jul 2021 905th iznax 641 141 439ms 21 Nov 2021 906th Andriamanitra 🇫🇮 640 56 176ms 23 Sep 2022 907th snoozingnewt 🇨🇦 639 36 32ms 16 Oct 2025 908th Yewzir 🇧🇪 639 111 123ms 19 Feb 2024 909th Yewzir 🇧🇪 639 167 318ms 5 May 2024 910th Starwort 🇬🇧 638 81 12ms 29 Dec 2019 910th guliyevemil1 🇦🇿 638 81 12ms 16 Apr 2020 910th redbeancola 638 81 12ms 11 Oct 2021 910th stertooy 🇧🇪 638 81 11ms 11 Jun 2024 910th 0dyse 638 81 12ms 29 Apr 2025 915th m-tkach 🇺🇦 636 279 63ms 27 Jun 2022 916th AlephSquirrel 634 212 150ms 3 Aug 2023 917th janbehrens 🇩🇪 633 76 40ms 31 May 2022 918th Yewzir 🇧🇪 633 201 1,680ms 1 Jun 2024 919th MeWhenI 🇻🇦 630 202 1,669ms 7 Nov 2025 920th cure-honey 🇯🇵 627 283 62ms 8 Jul 2021 921st hiddicop 🇸🇪 623 83 12ms 30 Jan 2021 921st cbrt-x 623 83 12ms 26 Sep 2021 921st AkashTandon167 623 83 9ms 1 Nov 2021 921st jamespeilunli 623 83 23ms 29 Dec 2021 921st eiburns 623 83 9ms 10 May 2023 921st Vaekor 623 83 9ms 9 Jul 2023 921st WillowWispy 623 83 9ms 20 Mar 2025 928th dokutan 622 946 1ms 22 Apr 2024 929th somebody1234 618 58 198ms 11 Dec 2018 929th voytxt 🇨🇿 618 58 2,007ms 17 Feb 2023 931st janbehrens 🇩🇪 618 119 585ms 1 May 2023 932nd primo-ppcg 🇹🇭 617 128 339ms 31 May 2021 933rd kirbyyourmom 🇬🇧 615 84 11ms 8 Mar 2021 933rd ToE42 615 84 12ms 7 Sep 2021 933rd JunkIce 615 84 12ms 1 Oct 2024 936th andersk 🇺🇸 608 59 2,319ms 4 Mar 2023 936th mjecke 608 59 2,036ms 3 Jul 2023 938th thisishowmymindworks 🇳🇴 608 79 15ms 17 Oct 2020 939th aiarzhantsev 608 85 725ms 14 Oct 2022 939th glassala 608 85 12ms 25 Dec 2024 941st Shanethegamer 🇺🇸 606 56 37ms 27 Jun 2022 942nd Chinay-Domitrix 🇺🇸 606 82 3,046ms 15 Apr 2025 943rd Lydxn 🇨🇦 606 136 416ms 4 Apr 2022 944th jgbaldwinbrown 606 176 349ms 24 May 2022 945th snoozingnewt 🇨🇦 605 972 2ms 26 Jan 2025 946th BBoehm 🇩🇪 604 142 2,604ms 26 Feb 2021 947th jared-hughes 602 137 441ms 24 Sep 2025 948th juliansiebert 🇩🇪 601 74 516ms 11 Dec 2023 949th twocatsinatrenchcoat 601 86 24ms 15 Apr 2022 949th Drew-j-Smith 601 86 12ms 11 Jan 2023 949th ComputerKWasTaken 🇺🇸 601 86 12ms 5 Sep 2024 949th RaBa21 🇭🇺 601 86 26ms 18 Jul 2025 949th cthierfelder 🇲🇨 601 86 13ms 4 Sep 2025 954th dokutan 600 54 680ms 30 Aug 2025 955th Lv0Sys 🇵🇱 599 178 275ms 6 Jun 2025 956th 0dyse 598 60 185ms 7 May 2025 957th JunkIce 595 84 438ms 3 Dec 2024 958th pandapawskat 594 49 9ms 20 Sep 2021 959th lmeuser 594 87 11ms 2 Dec 2017 959th rschwa6308 🇺🇸 594 87 184ms 4 Feb 2022 First Prev 881–960 of 2,420 Next Last