The Taxicab Numbers hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Collatz in Python 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 151st FEZfan 🇦🇺 863 73 23ms 11 Jul 2025 151st wuduculfre 863 73 21ms 28 Jul 2025 151st BREMAUCY 🇫🇷 863 73 21ms 24 Aug 2025 151st FortuiteMan 🇫🇷 863 73 21ms 28 Sep 2025 151st miaoaixuan 863 73 22ms 30 Sep 2025 151st Lv0Sys 🇵🇱 863 73 24ms 7 Dec 2025 151st zacharysfrazee 863 73 21ms 11 Jan 2026 151st bpharaldsson 863 73 22ms 6 Feb 2026 151st Zin9zan9 863 73 19ms 27 days ago 151st madeforlosers 863 73 23ms 19 days ago 151st Jakob-L-M 863 73 19ms 10 days ago 151st cuvam 🇺🇸 863 73 21ms 6 days ago 213th TobyBoyne 🇬🇧 851 74 20ms 4 May 2022 213th RDShah 851 74 21ms 6 May 2022 213th Indivicivet 851 74 21ms 9 May 2022 213th CedricGebistorf 851 74 20ms 9 May 2022 213th ophact 851 74 23ms 11 May 2022 213th ImpressedByRocks 851 74 20ms 17 May 2022 213th LHuitre 851 74 20ms 2 Jun 2022 213th neihousaigaai 851 74 18ms 8 Jun 2022 213th rowboat1 851 74 21ms 10 Jun 2022 213th inverseLorentz 🇦🇺 851 74 19ms 13 Jun 2022 213th yzhs 🇩🇪 851 74 19ms 16 Jun 2022 213th clementblaudeau 851 74 24ms 29 Jun 2022 213th adoxography 851 74 19ms 13 Jul 2022 213th Attero 🇸🇪 851 74 21ms 20 Jul 2022 213th Heathcorp 🇦🇺 851 74 23ms 27 Jul 2022 213th jfallon1997 851 74 20ms 11 Aug 2022 213th VictorFordham 851 74 26ms 26 Aug 2022 213th georgehulme 851 74 20ms 1 Sep 2022 213th smartiel 851 74 21ms 15 Sep 2022 213th trist224 🇫🇷 851 74 19ms 21 Sep 2022 213th Kloppermand 🇩🇰 851 74 22ms 7 Oct 2022 213th knutae 🇳🇴 851 74 20ms 9 Oct 2022 213th Troon 851 74 20ms 14 Oct 2022 213th MaxElf999 851 74 21ms 14 Oct 2022 213th jakobkordez 🇸🇮 851 74 19ms 19 Oct 2022 213th Fishron 851 74 19ms 29 Nov 2022 213th SniperSmiley 🇺🇸 851 74 20ms 6 Dec 2022 213th elephantpanda 851 74 21ms 10 Dec 2022 213th ArthurBond 851 74 21ms 19 Dec 2022 213th ItsMeNoobieboy 851 74 19ms 20 Dec 2022 213th Larspolo 851 74 19ms 25 Dec 2022 213th dcc5480 851 74 19ms 12 Jan 2023 213th Ripick 851 74 20ms 1 Feb 2023 213th m3nt0ras 🇬🇷 851 74 21ms 3 Feb 2023 213th Skwerl23 851 74 20ms 5 Feb 2023 213th frankgraziano 851 74 19ms 19 Feb 2023 213th KenanHanke 851 74 23ms 21 Feb 2023 213th DanielPeterssonAI 851 74 19ms 13 Mar 2023 213th jiaminglimjm 🇲🇾 851 74 20ms 20 Mar 2023 213th ejini6969 851 74 20ms 22 Mar 2023 213th GulgDev 851 74 20ms 22 Mar 2023 213th vrnprkh 851 74 21ms 30 Mar 2023 213th RuyiLi 851 74 20ms 1 Apr 2023 213th StardustGogeta 851 74 20ms 7 May 2023 213th zbreit 🇺🇸 851 74 20ms 7 May 2023 213th kyleclaassen 851 74 21ms 20 May 2023 213th mbittner20 851 74 20ms 27 May 2023 213th tweska 🇳🇱 851 74 19ms 5 Jun 2023 213th rollershutter 851 74 21ms 7 Jul 2023 213th 2011-Chan-Ethan 851 74 21ms 9 Jul 2023 213th cros107 🇦🇺 851 74 19ms 11 Aug 2023 213th yourlefthandman 851 74 21ms 16 Aug 2023 213th daisyyedda 851 74 20ms 17 Aug 2023 213th cesarm4 851 74 22ms 29 Aug 2023 213th midnattssol 🇸🇪 851 74 22ms 22 Sep 2023 213th lambda-abstraction 851 74 22ms 21 Oct 2023 213th levavft 851 74 19ms 26 Oct 2023 213th Buecherfresser 851 74 19ms 22 Nov 2023 213th anarconic 851 74 54ms 8 Dec 2023 213th azure-blondon 851 74 20ms 11 Dec 2023 213th kurkale6ka 851 74 22ms 20 Dec 2023 213th Dataen 851 74 19ms 10 Jan 2024 213th Anonymousellama21 851 74 22ms 14 Mar 2024 213th Bmrl7 851 74 20ms 23 Mar 2024 213th cefqrn 851 74 22ms 26 May 2024 213th drochom 851 74 21ms 18 Jun 2024 213th hiichbindermax 851 74 20ms 22 Jun 2024 213th wuzekai518 851 74 27ms 9 Jul 2024 213th cykim8811 851 74 52ms 11 Jul 2024 213th imelxr 🇮🇱 851 74 25ms 17 Aug 2024 213th EnTerr 851 74 23ms 25 Aug 2024 213th Mabeloid 🇳🇴 851 74 29ms 1 Sep 2024 213th LostSyntax21 🇬🇧 851 74 21ms 10 Sep 2024 213th Deedogg 851 74 21ms 11 Sep 2024 213th MassimoParisi 851 74 25ms 18 Sep 2024 213th lifthrasiir 🇰🇷 851 74 22ms 13 Nov 2024 213th agreegious 851 74 21ms 17 Nov 2024 213th Stockoh 🇫🇷 851 74 25ms 17 Nov 2024 213th Andrey135296 851 74 21ms 24 Nov 2024 213th TralfamadorianComedian 851 74 19ms 6 Dec 2024 213th bltnppcnt 851 74 34ms 3 Jan 2025 213th ZorblaxV 851 74 20ms 12 Jan 2025 213th yokasuretsu 851 74 19ms 13 Jan 2025 213th Artemis21 🇬🇧 851 74 21ms 17 Jan 2025 213th gdpr777 851 74 34ms 10 Feb 2025 213th Pyroan 851 74 22ms 27 Mar 2025 213th Squimbletin 851 74 20ms 19 Apr 2025 213th Kowalskiexe 🇵🇱 851 74 20ms 19 Apr 2025 First Prev 201–300 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