The Billiards hole will go live in 7 days. Why not try and solve it ahead of time?
Collatz in C# 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 1st Lydxn 🇨🇦 1,000 82 6 May 2022 1st JayXon 🇺🇸 1,000 82 9 May 2022 3rd stefangimmillaro 988 83 4 May 2022 3rd MeWhenI 🇻🇦 988 83 4 May 2022 3rd Irratix 🇳🇱 988 83 4 May 2022 3rd janbehrens 🇩🇪 988 83 4 May 2022 3rd m-tkach 🇺🇦 988 83 4 May 2022 3rd sean-niemann 🇺🇸 988 83 4 May 2022 3rd nwellnhof 🇩🇪 988 83 4 May 2022 3rd Shanethegamer 🇺🇸 988 83 4 May 2022 3rd ScottHamper 988 83 5 May 2022 3rd Re-Adventures 🇮🇳 988 83 5 May 2022 3rd Romain-1 🇫🇷 988 83 1 Jun 2022 3rd Gaddy 🇫🇷 988 83 1 Jun 2022 3rd 5quiwyrm 988 83 4 Sep 2022 3rd tomtheisen 🇺🇸 988 83 22 Dec 2022 3rd Betuaredead 988 83 5 Jan 2023 3rd annaproxy 988 83 7 Jan 2023 3rd Yewzir 🇧🇪 988 83 12 Feb 2023 3rd btnlq 988 83 9 Mar 2023 3rd Adix-null 🇱🇹 988 83 17 May 2023 3rd AdrienHache 🇫🇷 988 83 8 Jun 2023 3rd gblikas 988 83 23 Jul 2023 3rd namelessiw 988 83 25 Jul 2023 3rd KrausRaus 🇺🇸 988 83 31 Jul 2023 3rd dokutan 988 83 17 Mar 2024 3rd Yax42 🇫🇷 988 83 29 May 2024 3rd DialFrost 🇸🇬 988 83 12 Jun 2024 29th roavin 976 84 23 Jun 2022 29th tkr-sh 🇫🇷 976 84 20 Aug 2022 29th Nickmiste 976 84 9 Nov 2022 29th Matgc04 976 84 19 May 2023 29th postie77 976 84 19 May 2023 29th HumanoidCPU 976 84 7 May 2024 29th ertz1ertz 976 84 13 Sep 2024 29th Grabnukebomb 976 84 13 Sep 2024 37th arctouch-cristiannevianna 965 85 3 Apr 2023 38th krcs 🇵🇱 953 86 10 May 2022 38th billings7 🇬🇧 953 86 15 May 2022 38th revlayle 🇺🇸 953 86 7 Dec 2022 38th Widgitty 953 86 1 Sep 2023 42nd MichalMarsalek 🇨🇿 943 87 5 May 2022 42nd Kloppermand 🇩🇰 943 87 7 Oct 2022 42nd bwat2 943 87 6 Apr 2023 45th SiestaGuru 932 88 9 Jan 2023 45th rifatx 932 88 5 Jul 2024 47th c0d3-4-F00d 🇩🇪 921 89 5 May 2022 47th fkantelberg 921 89 15 Jul 2023 47th TRexOnGit 921 89 16 Feb 2024 47th arcpolaris 921 89 5 days ago 51st tomh1012 911 90 5 May 2022 51st bac0id 911 90 26 Sep 2023 51st deadp4nda 🇩🇪 911 90 26 Apr 2024 54th eshilo-draper 901 91 4 Sep 2022 54th ericlangedijk 🇸🇮 901 91 23 May 2023 54th KatieLG 🇬🇧 901 91 30 Apr 2024 54th Mikey-Beep 🇬🇧 901 91 3 Sep 2024 58th bschorno 891 92 12 Oct 2022 58th ChrisTheisen 891 92 14 Dec 2022 58th kellantech 891 92 4 Jul 2023 58th Mezzofloat 891 92 26 Aug 2023 58th Maximizer02 891 92 1 Oct 2023 58th michelebastione 🇮🇹 891 92 22 Dec 2023 58th madeforlosers 891 92 2 days ago 65th p-vf 🇨🇭 882 93 24 Jun 2022 65th Smetalo 882 93 25 Aug 2022 65th malworthy 882 93 19 Aug 2024 65th 123mjb 882 93 17 Oct 2024 69th trinityy-7 872 94 7 Mar 2024 70th aDwarfNamedUrist 837 98 30 Aug 2023 70th Alex-Huggett 🇬🇧 837 98 13 Apr 2024 72nd wescombs10 828 99 29 Oct 2022 73rd hamhub7 812 101 3 Aug 2022 73rd tpasfieldERAU 812 101 5 Nov 2022 73rd ElysiaVesper 812 101 19 Nov 2023 1–75 of 98 Next