The Continued Fractions hole will go live in approximately 2 days. Why not try and solve it ahead of time?
Collatz 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 Calendar 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 Multitap Input 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 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 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 ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar 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 Multitap Input 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 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 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 880th Natanaelel 🇸🇪 862 73 2ms 15 Jun 2022 880th LorenzoDeGaspari 862 73 2ms 27 May 2024 880th Bpc-CPU 862 73 2ms 12 Jul 2025 880th AZTECCO 862 73 2ms 16 Sep 2025 880th CaedenHarper 🇨🇦 862 73 2ms 28 Sep 2025 880th prestosilver 🇺🇸 862 73 2ms 3 Dec 2025 880th albanian-laundromat 862 73 3ms 20 Jan 2026 888th 386asm 🇺🇸 862 86 40ms 9 Apr 2023 888th DialFrost 🇸🇬 862 86 43ms 30 Dec 2025 890th Shanethegamer 🇺🇸 861 70 99ms 12 Dec 2022 890th Alessandro-Balconi 🇮🇹 861 70 95ms 26 Dec 2022 892nd o0lit3 🇺🇸 860 54 7ms 22 Jun 2023 892nd Natanaelel 🇸🇪 860 54 7ms 10 Feb 2025 894th Liibe 860 97 477ms 25 Sep 2025 895th stefangimmillaro 860 112 285ms 26 Sep 2023 895th kkoenig 860 112 290ms 4 Jan 2024 897th frankgraziano 860 198 108ms 14 Oct 2025 898th Yewzir 🇧🇪 859 65 4ms 9 Oct 2023 898th MeWhenI 🇻🇦 859 65 3ms 10 Oct 2023 900th scpchicken 🇵🇼 859 72 20ms 4 May 2022 900th sultan 859 72 17ms 6 Jun 2022 900th annaproxy 859 72 22ms 22 Aug 2022 900th BlankSpruce 859 72 24ms 9 Sep 2022 900th ValentinCassayre 859 72 21ms 8 Oct 2022 900th mathb0y512 859 72 22ms 1 Dec 2022 900th NoahBolohan 🇨🇦 859 72 23ms 28 Feb 2023 900th neel11235813 859 72 22ms 8 Mar 2023 900th Kacarott 🇦🇺 859 72 17ms 24 Mar 2023 900th Fracture17 859 72 19ms 8 Apr 2023 900th ayushdewan 859 72 25ms 7 May 2023 900th PeterTillema 🇳🇱 859 72 25ms 17 Oct 2023 900th Glinte 859 72 24ms 11 Dec 2023 900th nanatsu8 859 72 26ms 11 May 2024 900th thej10n 859 72 20ms 12 Jun 2024 900th tobeannouncd 859 72 18ms 25 Apr 2025 900th YAJUE114514 859 72 17ms 15 Aug 2025 917th aditsu 859 77 2,303ms 23 Nov 2025 918th Shanethegamer 🇺🇸 858 83 1,374ms 4 May 2022 919th yeminghan2021 858 99 57ms 3 Feb 2025 920th henrydukepickle 857 97 128ms 8 Jul 2025 921st SirBogman 🇺🇸 856 55 38ms 5 May 2022 921st olivermrose 🇺🇸 856 55 42ms 6 May 2022 921st 4hg 🇺🇸 856 55 50ms 24 Aug 2022 921st DialFrost 🇸🇬 856 55 43ms 1 Jan 2023 921st error256 856 55 40ms 4 May 2024 926th JayXon 🇺🇸 856 56 1,287ms 9 May 2022 927th mtirado1 856 74 79ms 24 Dec 2022 927th Betuaredead 856 74 81ms 6 Jan 2023 927th KatieLG 🇬🇧 856 74 81ms 15 Jan 2023 927th bwat2 856 74 82ms 31 Mar 2023 927th stackotter 856 74 78ms 29 May 2023 927th ovs-code 🇩🇪 856 74 82ms 17 Apr 2024 927th madeforlosers 856 74 80ms 21 Nov 2024 934th eshilo-draper 856 91 392ms 4 Sep 2022 934th ericlangedijk 🇸🇮 856 91 398ms 23 May 2023 934th KatieLG 🇬🇧 856 91 411ms 30 Apr 2024 934th Mikey-Beep 🇬🇧 856 91 388ms 3 Sep 2024 938th DialFrost 🇸🇬 855 61 439ms 21 Jan 2024 939th Shanethegamer 🇺🇸 855 99 24ms 27 Apr 2023 940th ovs-code 🇩🇪 853 62 147ms 3 Aug 2024 940th MeWhenI 🇻🇦 853 62 143ms 25 Oct 2024 940th Shanethegamer 🇺🇸 853 62 137ms 19 Dec 2024 943rd Shanethegamer 🇺🇸 853 85 451ms 18 May 2022 943rd GrayJoKing 🇦🇺 853 85 448ms 20 May 2022 945th JRaspass 🇬🇧 852 46 336ms 4 May 2022 945th Natanaelel 🇸🇪 852 46 336ms 4 May 2022 947th retrohun 852 64 4ms 6 Nov 2022 947th Re-Adventures 🇮🇳 852 64 4ms 7 Nov 2022 947th stellartux 852 64 4ms 26 Dec 2023 947th bac0id 852 64 4ms 29 Jun 2024 947th snoozingnewt 🇨🇦 852 64 4ms 1 Sep 2024 947th albanian-laundromat 852 64 4ms 22 Sep 2025 953rd the-zammers 852 68 165ms 2 Oct 2023 954th lynn 852 96 29ms 11 Jul 2023 955th janAkali 🇷🇺 851 77 132ms 12 Feb 2025 956th Schmitt-Very-Cool 851 98 434ms 26 Sep 2025 957th randolchance 850 63 10ms 8 Jan 2023 957th CatsAreFluffy 850 63 12ms 18 Feb 2023 957th amiralitaheri 850 63 10ms 23 Feb 2023 957th RuyiLi 850 63 11ms 1 Apr 2023 First Prev 881–960 of 3,603 Next Last