The Billiards hole will go live in 6 days. Why not try and solve it ahead of time?
Happy Numbers in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 Maze Medal Tally 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 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 Rule 110 Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Time Distance Tongue-twisters Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Crystal D Dart Elixir F# Factor Forth Fortran Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lisp Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Crystal D Dart Elixir F# Factor Forth Fortran Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lisp Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 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 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 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 Maze Medal Tally 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 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 Rule 110 Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Time Distance Tongue-twisters Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 # Golfer Points Bytes Time 826th Irratix 🇳🇱 783 91 19 Dec 2021 827th MeWhenI 🇻🇦 782 63 11 Nov 2021 828th gnuvince 781 32 2 Aug 2024 829th SirBogman 🇺🇸 780 86 2 Nov 2022 829th FlyingPenguin223 780 86 27 days ago 831st guliyevemil1 🇦🇿 780 87 20 Apr 2020 831st strout 780 87 15 Dec 2023 833rd KatieLG 🇬🇧 778 51 9 Dec 2020 833rd msbranicky 778 51 27 Jul 2023 833rd dokutan 778 51 11 Nov 2023 836th Shanethegamer 🇺🇸 778 74 19 Aug 2024 837th jakobwitte 778 77 21 Mar 2018 837th jareddaugherty 778 77 29 Sep 2018 837th Mikaeel66 778 77 11 Nov 2019 837th ArmaanAS 778 77 8 Mar 2021 837th Re-Adventures 🇮🇳 778 77 18 May 2021 842nd Waffle3z 778 78 9 Jul 2021 842nd snydej 778 78 a day ago 844th Natanaelel 🇸🇪 777 64 19 Sep 2021 845th yzhs 🇩🇪 775 38 21 Jun 2022 846th msbranicky 774 90 11 Oct 2023 847th aposteriorist 🇨🇦 774 99 27 Feb 2022 847th stackofbears 774 99 5 Mar 2022 849th Irratix 🇳🇱 774 111 3 Jan 2022 850th robymus 773 61 17 Sep 2018 851st galloj 🇨🇿 773 107 28 Aug 2022 852nd CaedenHarper 🇨🇦 772 68 6 Aug 2024 853rd bastatom 772 131 25 Feb 2024 854th Shanethegamer 🇺🇸 771 60 9 Mar 2023 855th Yewzir 🇧🇪 771 102 30 May 2024 856th ovs-code 🇩🇪 770 98 17 Mar 2023 857th jiaminglimjm 🇲🇾 770 172 9 Jan 2021 858th shuding 768 78 4 May 2020 858th igmcdowell 768 78 20 Dec 2021 858th dylanarmstrong 768 78 24 Jan 2024 861st Eilonlif 🇮🇱 768 79 20 Feb 2023 861st fkantelberg 768 79 22 Jul 2023 861st fgrosshans 🇫🇷 768 79 23 Jul 2024 861st EnTerr 768 79 1 Sep 2024 865th bluebear94 767 49 12 Feb 2018 865th prplz 🇦🇺 767 49 27 Sep 2021 867th elgan65536 766 93 28 Nov 2023 867th Bmrl7 766 93 29 Feb 2024 869th dpatterbee 766 132 24 Aug 2020 870th neihousaigaai 766 152 8 May 2021 871st yzhs 🇩🇪 765 65 3 Aug 2021 872nd NewDefectus 🇮🇱 764 62 6 Jun 2021 873rd Irratix 🇳🇱 762 89 23 Sep 2021 874th billings7 🇬🇧 762 96 21 May 2024 875th dokutan 761 69 14 Apr 2024 876th boxjelly 761 153 17 Feb 2021 877th FlyingPenguin223 760 62 16 Nov 2023 878th MichalMarsalek 🇨🇿 760 88 30 Nov 2022 879th hrubymar10 760 133 27 Feb 2024 880th ageneric 759 80 7 Feb 2021 880th jacklynnepenick 759 80 19 Aug 2021 880th ehulinsky 🇺🇸 759 80 10 Nov 2021 880th NewDefectus 🇮🇱 759 80 15 Dec 2021 880th ZakkkkAttackkkk 🇵🇭 759 80 21 Dec 2021 880th guilhem-roy 🇫🇷 759 80 26 Feb 2022 880th suwat513 759 80 15 Sep 2022 880th btjones0 759 80 18 Nov 2022 880th nstearns96 🇬🇧 759 80 15 Dec 2022 880th kellantech 759 80 3 Jun 2023 880th snoozingnewt 🇺🇸 759 80 3 Oct 2023 880th jhu04 759 80 18 Jan 2024 880th Bmrl7 759 80 29 Feb 2024 880th jtaxen 759 80 4 Apr 2024 894th emgordon154 758 76 9 days ago 895th p01 758 79 3 Nov 2017 895th kayahr 758 79 17 Jun 2021 895th alasdair-greenland 758 79 10 Nov 2021 895th eranws 758 79 9 Sep 2022 895th madeforlosers 758 79 23 Oct 2024 900th boxjelly 758 94 15 Feb 2021 Prev 826–900 of 2,612 Next