The Taxicab Numbers hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Fibonacci in Ruby 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 198th sacthedev 641 39 39ms 3 Apr 2018 198th okkun-oreo 641 39 39ms 2 Nov 2020 198th owen-c-parker 🇺🇸 641 39 39ms 24 Nov 2022 198th Maximizer02 641 39 37ms 17 Sep 2025 205th yokasuretsu 625 40 38ms 16 Apr 2018 205th atsushiootani 625 40 39ms 7 Aug 2018 205th esmg1 625 40 37ms 22 Aug 2018 205th MichalMarsalek 🇨🇿 625 40 41ms 2 Sep 2022 205th Heathcorp 🇦🇺 625 40 39ms 26 Nov 2022 205th nortonbatista 625 40 39ms 31 Oct 2023 205th Nathan-Masala 625 40 42ms 20 days ago 212th JRaspass 🇬🇧 610 41 39ms 23 Mar 2021 212th MCausc78 🇺🇦 610 41 38ms 29 Dec 2022 212th lgrandco 610 41 38ms 9 Oct 2024 215th tadd 595 42 42ms 16 Apr 2020 215th Ralac07 🇦🇺 595 42 38ms 17 Jun 2024 215th Just4FunCoder 595 42 37ms 26 Aug 2024 218th evanSpendlove 581 43 39ms 10 Dec 2020 219th biji1 568 44 39ms 26 Apr 2018 219th martica 568 44 37ms 20 May 2018 219th msbranicky 568 44 39ms 7 Sep 2023 222nd greghull 556 45 39ms 8 Nov 2017 222nd Noxilex 556 45 40ms 20 Mar 2019 222nd ashtraypettingzoo 🇺🇸 556 45 39ms 16 Feb 2023 222nd hacker112 🇸🇪 556 45 36ms 1 Jul 2024 226th adoxography 543 46 213ms 20 Sep 2018 226th CaAlden 543 46 38ms 10 May 2019 226th Ronterox 543 46 37ms 4 Feb 2026 229th snltd 532 47 38ms 18 Aug 2019 229th michaelbaudino 532 47 210ms 18 Oct 2020 229th JesseNoEyes 🇺🇸 532 47 36ms 26 Sep 2024 229th Mikey-Beep 🇬🇧 532 47 39ms 20 Aug 2025 233rd timcustard 521 48 40ms 10 Nov 2017 233rd elizj3 🇵🇱 521 48 38ms 30 Dec 2020 233rd martinnorling 🇸🇪 521 48 37ms 6 Feb 2022 233rd purp 521 48 39ms 13 Aug 2022 233rd eiburns 521 48 37ms 7 Sep 2023 233rd SwordF-Official 🇺🇸 521 48 37ms 2 Jun 2025 239th illegalnumbers 510 49 38ms 27 Jun 2019 239th b-paul 510 49 38ms 25 Dec 2020 241st babcockd 500 50 39ms 19 Dec 2017 242nd lbrito1 490 51 204ms 8 Jan 2022 242nd azure-blondon 490 51 39ms 10 Jul 2024 244th zstearman3 481 52 40ms 11 Jul 2018 244th gpolumbo-broad 481 52 39ms 14 Mar 2019 244th karinknutsson 481 52 36ms 19 Mar 2021 244th HallMatthew314 481 52 144ms 5 Dec 2021 244th jonathanelliott 481 52 149ms 30 May 2024 249th SamirHodzic 472 53 151ms 11 Oct 2018 250th atayarani 463 54 213ms 17 Jan 2019 250th jusaka 463 54 39ms 11 days ago 252nd pfysches-boop 455 55 38ms 6 Aug 2023 253rd jamespeilunli 446 56 38ms 29 Apr 2022 253rd Zach1031 446 56 41ms 15 Nov 2025 255th jacobsmith 439 57 146ms 21 Jan 2019 255th nico-bachner 439 57 39ms 28 Dec 2020 255th sm1lko 439 57 38ms 14 Dec 2022 255th Adix-null 🇱🇹 439 57 37ms 5 Jul 2023 259th kenballus 431 58 148ms 22 Nov 2019 259th sqlreader 431 58 184ms 15 Nov 2020 259th dillon-duncando 431 58 147ms 21 Dec 2021 262nd paramsiddharth 424 59 37ms 18 Apr 2020 263rd RowdyLemon 403 62 38ms 17 Mar 2021 264th phpboyscout 379 66 37ms 3 Sep 2019 264th jtaxen 379 66 37ms 18 Mar 2022 266th DanielDz21 🇧🇷 373 67 38ms 31 Oct 2023 267th tom-lord 357 70 38ms 8 Nov 2017 268th Noah-Fox 325 77 39ms 1 Jun 2022 269th michaelrychly 321 78 66ms 20 May 2019 269th vonKrafft 321 78 149ms 26 Mar 2020 271st christensendaniel 294 85 38ms 26 Aug 2023 272nd ninjawarrior1337 291 86 155ms 8 Aug 2021 273rd beauby 284 88 206ms 13 Nov 2017 274th Cr3aHal0 248 101 145ms 5 Jul 2019 275th BharadwajSridharan 🇮🇳 234 107 38ms 14 Nov 2020 276th kkoenig 223 112 152ms 22 Dec 2023 277th retrohun 180 139 38ms 21 Dec 2018 277th KatieLG-Transpiler 🇬🇧 180 139 39ms 24 Jun 2022 277th Mabeloid 🇳🇴 180 139 36ms 18 Sep 2024 277th Herbert00709 🇵🇱 180 139 37ms 31 Oct 2024 281st rwellens 177 141 39ms 18 Nov 2017 282nd mokymok 🇺🇸 148 169 39ms 9 Nov 2021 283rd trist224 🇫🇷 145 172 38ms 30 Nov 2022 First Prev 201–283 of 283