The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Odious Numbers (Long) in all languages in chars. 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 Chars Time Submitted 877th Yewzir 🇧🇪 829 68 116ms 17 Nov 2023 877th dokutan 829 68 119ms 27 Mar 2024 877th The3gs 829 68 117ms 29 Nov 2024 877th Natanaelel 🇸🇪 829 68 123ms 24 Jul 2025 885th msbranicky 829 73 24ms 3 Jan 2024 885th albanian-laundromat 829 73 29ms 15 days ago 887th jared-hughes 829 124 11ms 7 Jul 2024 888th Shanethegamer 🇺🇸 828 74 457ms 6 Sep 2022 888th ovs-code 🇩🇪 828 74 416ms 15 Jun 2024 890th edsrzf 🇳🇿 828 126 1,720ms 13 Sep 2025 891st GrayJoKing 🇦🇺 827 18 71ms 7 Sep 2022 891st AlephSquirrel 827 18 58ms 3 Dec 2022 891st primo-ppcg 🇹🇭 827 18 63ms 7 Dec 2022 891st prplz 🇦🇺 827 18 60ms 10 Dec 2022 891st orthoplex 🇨🇽 827 18 70ms 3 Oct 2023 891st ovs-code 🇩🇪 827 18 71ms 3 Oct 2023 891st pardouin 🇫🇷 827 18 70ms 6 Sep 2024 891st 5quiwyrm 827 18 67ms 14 Nov 2024 891st snoozingnewt 🇨🇦 827 18 48ms 9 days ago 900th Ripick 827 55 148ms 8 Jan 2023 901st MeWhenI 🇻🇦 827 57 36ms 6 Sep 2022 902nd HumanoidCPU 826 42 363ms 4 May 2024 903rd Steffan153 🇫🇮 826 43 5ms 26 Jul 2024 903rd sean-niemann 🇺🇸 826 43 4ms 14 Apr 2025 903rd targrik 826 43 80ms 2 days ago 906th Shanethegamer 🇺🇸 826 51 85ms 9 Sep 2022 906th dokutan 826 51 86ms 28 Jul 2024 906th pardouin 🇫🇷 826 51 85ms 5 Sep 2024 906th kaascevich 826 51 87ms 9 Jul 2025 906th snoozingnewt 🇨🇦 826 51 85ms 30 Sep 2025 911th GrayJoKing 🇦🇺 825 65 77ms 23 Jul 2024 912th GolfingSuccess 🇬🇷 824 17 2ms 9 Feb 2023 913th Vinterion 824 80 81ms 11 Nov 2023 913th dokutan 824 80 74ms 12 Mar 2024 913th snyderek 🇺🇸 824 80 79ms 23 Feb 2025 913th gjoacorp 🇬🇧 824 80 59ms 4 Aug 2025 917th sean-niemann 🇺🇸 823 31 3ms 14 May 2025 918th GolfingSuccess 🇬🇷 823 42 694ms 29 Aug 2025 918th MeWhenI 🇻🇦 823 42 677ms 15 Sep 2025 918th Yewzir 🇧🇪 823 42 720ms 15 Nov 2025 921st saito-ta 🇯🇵 820 96 6ms 14 Sep 2022 922nd Steffan153 🇫🇮 818 63 42ms 22 Aug 2024 923rd msbranicky 817 54 8ms 28 Aug 2023 923rd dokutan 817 54 6ms 29 Jul 2024 925th mousetail 🇳🇱 817 69 120ms 28 Dec 2022 925th klixel 🇨🇦 817 69 116ms 15 Apr 2023 925th CarsonChr 🇺🇸 817 69 116ms 7 Apr 2024 925th Aurel300 🇨🇭 817 69 119ms 7 Jun 2024 925th wuzekai518 817 69 112ms 25 Jun 2024 925th edsrzf 🇳🇿 817 69 112ms 16 Nov 2024 925th snoozingnewt 🇨🇦 817 69 117ms 29 Sep 2025 932nd dokutan 817 75 430ms 15 Jul 2025 933rd albanian-laundromat 816 55 110ms 11 Nov 2025 934th aDwarfNamedUrist 816 61 128ms 26 Aug 2024 935th luuumine 🇫🇷 815 58 2ms 22 Oct 2025 936th msbranicky 815 128 1,736ms 16 Sep 2025 937th trist224 🇫🇷 814 49 17ms 17 Oct 2022 937th Bodo171 814 49 11ms 23 Nov 2022 937th thatbirdguythatuknownot 814 49 10ms 30 Dec 2022 937th emirps 814 49 10ms 30 Jan 2023 937th stertooy 🇧🇪 814 49 10ms 10 Jun 2024 937th wuzekai518 814 49 16ms 25 Jun 2024 937th Mabeloid 🇳🇴 814 49 10ms 22 Sep 2024 937th jamesthekee 814 49 16ms 27 Jan 2025 937th Pablitoz-Code 🇮🇹 814 49 11ms 29 Jan 2025 937th alabhyajindal 814 49 11ms 7 Apr 2025 937th jacekwladzinski 814 49 9ms 2 Oct 2025 937th SectorCorruptor 814 49 18ms 3 Nov 2025 949th annaproxy 814 81 66ms 7 Jan 2023 949th roupiq 🇵🇱 814 81 55ms 15 Nov 2023 951st 4hg 🇺🇸 812 34 45ms 6 Sep 2022 951st stefangimmillaro 812 34 53ms 6 Sep 2022 951st nwellnhof 🇩🇪 812 34 39ms 11 Sep 2022 951st janlelis 812 34 39ms 16 Sep 2022 951st m-tkach 🇺🇦 812 34 49ms 9 May 2023 951st ovs-code 🇩🇪 812 34 43ms 9 May 2023 951st yzhs 🇩🇪 812 34 36ms 21 Jun 2023 951st emgordon154 812 34 36ms 25 Sep 2024 951st CaedenHarper 🇨🇦 812 34 37ms 28 Aug 2025 960th GrayJoKing 🇦🇺 812 44 125ms 3 Aug 2024 First Prev 881–960 of 2,490 Next Last