The Calendar hole will go live in approximately 5 days. Why not try and solve it ahead of time?
Evil Numbers 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 synt7x 🇺🇸 891 40 2ms 14 Jul 2025 877th fuzzylojik-golf 🇺🇸 891 40 1ms 2 Sep 2025 883rd GrayJoKing 🇦🇺 890 38 1ms 9 Oct 2023 884th MeWhenI 🇻🇦 890 46 5ms 16 Dec 2024 885th ZakkkkAttackkkk 🇵🇭 890 74 60ms 27 Jul 2022 886th steffan-polygolf 888 40 347ms 8 Mar 2024 886th Jacob385 888 40 356ms 13 Aug 2024 888th primo-ppcg 🇹🇭 888 53 115ms 3 Jul 2019 888th marcin7Cd 888 53 119ms 13 Mar 2020 888th nwellnhof 🇩🇪 888 53 1ms 4 Oct 2020 888th primo-ppcg 🇹🇭 888 53 1ms 5 Oct 2020 888th ssiquoya 🇷🇺 888 53 116ms 12 Jun 2021 888th GrayJoKing 🇦🇺 888 53 1ms 6 Jul 2021 888th emplv 🇱🇻 888 53 1ms 28 Apr 2022 888th Shanethegamer 🇺🇸 888 53 119ms 22 Mar 2023 888th Shanethegamer 🇺🇸 888 53 1ms 3 Apr 2023 888th stefangimmillaro 888 53 1ms 12 Jun 2023 888th ovs-code 🇩🇪 888 53 1ms 25 Aug 2023 888th JohandeRuiter 🇳🇱 888 53 1ms 25 Nov 2023 888th DialFrost 🇸🇬 888 53 1ms 16 Jan 2024 888th Herbert00709 🇵🇱 888 53 1ms 14 Apr 2024 888th MostParsingVex 888 53 2ms 26 Aug 2024 888th tigerdan2 🇩🇪 888 53 1ms 8 Jan 2025 888th Schoko3001 888 53 2ms 10 Jan 2025 888th fuzzylojik-golf 🇺🇸 888 53 2ms 20 Aug 2025 888th 09cf 888 53 2ms 25 Nov 2025 888th AdrienHache 🇫🇷 888 53 2ms 25 days ago 908th sisyphus-ppcg 🇦🇺 886 33 261ms 24 Jan 2023 908th Shanethegamer 🇺🇸 886 33 297ms 22 Mar 2023 908th ovs-code 🇩🇪 886 33 274ms 12 Mar 2024 908th antimon2 🇯🇵 886 33 414ms 11 Jul 2024 912th GrayJoKing 🇦🇺 886 36 5ms 21 May 2021 913th lifthrasiir 🇰🇷 886 58 8ms 19 Dec 2024 914th janbehrens 🇩🇪 886 84 255ms 12 Jun 2021 914th albanian-laundromat 886 84 255ms 23 days ago 916th JayXon 🇺🇸 885 29 2ms 7 Mar 2021 916th Steffan153 🇫🇮 885 29 2ms 5 Aug 2024 916th saito-ta 🇯🇵 885 29 3ms 20 Aug 2025 916th sean-niemann 🇺🇸 885 29 3ms 28 Nov 2025 920th prplz 🇦🇺 884 26 100ms 14 Oct 2020 920th primo-ppcg 🇹🇭 884 26 100ms 19 Oct 2020 920th o0lit3 🇺🇸 884 26 93ms 23 Dec 2020 920th sisyphus-ppcg 🇦🇺 884 26 95ms 4 Jan 2021 920th Natanaelel 🇸🇪 884 26 105ms 24 Sep 2021 920th ovs-code 🇩🇪 884 26 93ms 1 Jan 2024 926th DialFrost 🇸🇬 883 37 732ms 29 Aug 2025 926th rucin93 🇵🇱 883 37 679ms 29 Aug 2025 928th Shanethegamer 🇺🇸 883 64 26ms 22 Mar 2023 928th lynn 883 64 25ms 11 Jul 2023 928th GrayJoKing 🇦🇺 883 64 25ms 11 Aug 2023 928th m-tkach 🇺🇦 883 64 26ms 11 Aug 2023 932nd Shanethegamer 🇺🇸 882 63 110ms 15 Apr 2025 932nd emgordon154 882 63 103ms 27 Nov 2025 932nd DialFrost 🇸🇬 882 63 129ms 27 Nov 2025 932nd GolfingSuccess 🇬🇷 882 63 95ms 27 Nov 2025 932nd edsrzf 🇳🇿 882 63 109ms 28 Nov 2025 932nd snoozingnewt 🇨🇦 882 63 94ms 26 days ago 932nd sean-niemann 🇺🇸 882 63 99ms 19 days ago 939th Irratix 🇳🇱 881 31 943ms 25 Mar 2021 939th anter69 🇭🇺 881 31 1,054ms 10 Mar 2025 941st GrayJoKing 🇦🇺 881 66 455ms 28 Feb 2022 941st DialFrost 🇸🇬 881 66 413ms 16 Jan 2024 943rd JOrE20 🇺🇸 880 66 24ms 13 days ago 944th wuzekai518 879 60 125ms 18 Jun 2024 945th snyderek 🇺🇸 878 75 56ms 30 Oct 2024 946th Shanethegamer 🇺🇸 878 110 10ms 1 Aug 2023 946th MeWhenI 🇻🇦 878 110 10ms 1 Aug 2023 946th Lydxn 🇨🇦 878 110 9ms 1 Aug 2023 946th JayXon 🇺🇸 878 110 9ms 2 Aug 2023 946th Steffan153 🇫🇮 878 110 10ms 2 Aug 2023 946th janbehrens 🇩🇪 878 110 9ms 2 Aug 2023 946th GrayJoKing 🇦🇺 878 110 9ms 11 Aug 2023 946th BREMAUCY 🇫🇷 878 110 9ms 7 Sep 2023 946th dokutan 878 110 9ms 20 Oct 2023 946th Yewzir 🇧🇪 878 110 9ms 12 Mar 2024 946th rucin93 🇵🇱 878 110 10ms 10 May 2024 946th HumanoidCPU 878 110 10ms 14 May 2024 946th pardouin 🇫🇷 878 110 9ms 20 Aug 2024 946th KatieLG 🇬🇧 878 110 10ms 26 Sep 2024 946th emgordon154 878 110 9ms 4 Dec 2024 First Prev 881–960 of 5,029 Next Last