The Taxicab Numbers hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Card Number Validation in Python in chars. 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 Chars Time Submitted 101st jipsong 🇩🇪 583 115 18ms 12 May 2025 102nd rowechenzhong 578 116 17ms 17 Oct 2024 103rd dtbao20 🇻🇳 573 117 19ms 1 Oct 2024 103rd Pyroan 573 117 18ms 22 Feb 2025 103rd vgamula 🇺🇦 573 117 17ms 5 Aug 2025 103rd FortuiteMan 🇫🇷 573 117 18ms 1 Dec 2025 103rd yujqiao 573 117 25ms 16 Dec 2025 108th elgan65536 🇺🇸 568 118 11ms 2 Oct 2024 108th logvp 568 118 18ms 6 Oct 2024 108th ahmetdemirag 🇨🇾 568 118 10ms 6 Feb 2025 108th dirckvdende 568 118 17ms 10 Jul 2025 112th jtaxen 563 119 18ms 21 Oct 2024 112th psbpsbp 563 119 9ms 19 Dec 2024 112th klixel 🇨🇦 563 119 10ms 9 Apr 2025 112th vhoulbreque 🇫🇷 563 119 16ms 21 Nov 2025 116th TaserTheFox 🇺🇸 558 120 18ms 8 Oct 2024 116th yokasuretsu 558 120 11ms 26 Jan 2025 116th Troon 558 120 10ms 17 Feb 2025 119th BREMAUCY 🇫🇷 554 121 17ms 18 Jul 2025 119th retrohun 554 121 10ms 21 Mar 2026 121st chartung17 549 122 10ms 24 Mar 2025 122nd msbranicky 545 123 17ms 3 Oct 2024 122nd bobbysq 545 123 12ms 5 Oct 2024 122nd wuzekai518 545 123 10ms 8 Oct 2024 122nd denkyuu1 545 123 16ms 10 Mar 2026 122nd fuzzylojik-golf 🇺🇸 545 123 17ms 27 Mar 2026 127th NotEvenIndian 540 124 14ms 22 Oct 2024 127th ridingqwerty 🇺🇸 540 124 20ms 16 Jan 2025 127th CommandLeo 🇮🇹 540 124 11ms 5 Oct 2025 130th bnic24 536 125 18ms 3 Oct 2024 130th adoxography 536 125 10ms 22 Oct 2024 130th lelbal 536 125 10ms 14 Oct 2025 133rd CatsAreFluffy 528 127 17ms 30 Oct 2024 133rd WillowWispy 528 127 11ms 25 May 2025 135th madex 🇩🇪 519 129 21ms 2 Oct 2024 135th RedzGoose 🇦🇺 519 129 11ms 15 Oct 2024 135th calebaitken 519 129 10ms 11 Apr 2025 135th rollershutter 519 129 19ms 20 Nov 2025 139th Europe2048 515 130 11ms 2 Oct 2024 139th nstearns96 🇬🇧 515 130 17ms 2 Oct 2024 139th Stockoh 🇫🇷 515 130 17ms 4 Jul 2025 142nd inverseLorentz 🇦🇺 511 131 12ms 7 Oct 2024 142nd sciencejiho 511 131 24ms 11 Feb 2025 142nd Jaydosu 511 131 11ms 11 Apr 2025 142nd Emutis 🇱🇹 511 131 10ms 11 Nov 2025 146th sultan 508 132 17ms 11 days ago 147th Mabeloid 🇳🇴 504 133 10ms 2 Oct 2024 148th Mikey-Beep 🇬🇧 496 135 17ms 14 days ago 149th sciencedjinn 493 136 10ms 8 Nov 2024 149th mchalunderscore 493 136 20ms 4 Jan 2025 149th Florian-Mt 493 136 17ms 5 Dec 2025 152nd kurkale6ka 489 137 29ms 16 Oct 2024 152nd 4ndyJ 🇬🇧 489 137 12ms 14 Nov 2024 152nd wobblybits 489 137 18ms 17 Aug 2025 152nd Andrey2001 489 137 16ms 1 Feb 2026 152nd tomh1012 489 137 18ms 4 Mar 2026 152nd Aquateraneal 🇺🇸 489 137 18ms 8 Mar 2026 158th NanduBC 479 140 11ms 1 Oct 2024 158th jmerle 🇳🇱 479 140 10ms 10 Jan 2025 158th RobertHoeh 479 140 10ms 3 Mar 2025 158th smilesformiles3 479 140 18ms 12 Jun 2025 158th artem-aramma 479 140 16ms 18 Jun 2025 163rd FranklinJiaChen 475 141 13ms 2 Oct 2024 164th brimstonetrader 472 142 16ms 17 Oct 2024 164th codewrite 🇬🇧 472 142 12ms 5 May 2025 164th RobGLambert 472 142 19ms 8 Jun 2025 164th GodlyProgrammer1 472 142 18ms 22 Nov 2025 164th jbjd 472 142 11ms 4 Feb 2026 169th GeneralFabian 469 143 10ms 9 Dec 2024 169th CutSandstone 469 143 11ms 30 Jan 2025 169th kistlerf 🇨🇭 469 143 17ms 19 May 2025 172nd hiichbindermax 465 144 19ms 2 Oct 2024 172nd mathisfun271 465 144 12ms 14 Oct 2024 172nd bob-th 465 144 11ms 22 Oct 2024 175th croc54 459 146 11ms 15 Dec 2024 176th PyryL 🇫🇮 456 147 11ms 1 Mar 2025 177th mbittner20 453 148 10ms 13 Oct 2024 177th YAJUE114514 453 148 10ms 12 Dec 2025 179th psaban 450 149 18ms 31 Jul 2025 179th TheZwierzLF 🇵🇱 450 149 11ms 24 Nov 2025 179th RodAlc24 🇪🇸 450 149 18ms 22 Feb 2026 182nd jameswmccarty 447 150 11ms 5 Oct 2024 182nd yousefalizadeh 447 150 11ms 23 Oct 2024 182nd feherd 447 150 10ms 31 Oct 2024 182nd kadamkaustubh 447 150 11ms 8 Nov 2025 186th adamnielson42 🇺🇸 441 152 10ms 6 Oct 2024 186th voidgloom 441 152 11ms 22 Oct 2024 186th omero-san 441 152 10ms 22 Sep 2025 186th brochmann 🇸🇪 441 152 10ms 12 Oct 2025 190th denisfouchard 438 153 10ms 21 Aug 2025 191st osNiko 🇧🇷 435 154 11ms 21 Aug 2025 192nd celiendonze 🇨🇭 432 155 11ms 17 Oct 2025 193rd Shotokhan 429 156 10ms 21 Sep 2025 194th lhulinsky 427 157 11ms 21 Oct 2024 195th ellis-rix 424 158 11ms 9 Dec 2024 196th webmiche 421 159 11ms 3 Nov 2025 197th CheeseCake628 🇳🇴 419 160 108ms 5 Nov 2024 198th pres-abhisheksinha 416 161 10ms 8 Oct 2024 199th ibixina 414 162 10ms 13 Oct 2024 199th TheAtrossian 414 162 13ms 5 Jan 2025 First Prev 101–200 of 226 Next Last