The Taxicab Numbers hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Arrows 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 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 801st SB-945 445 212 15ms 14 Jul 2023 802nd Maximizer02 445 294 7ms 26 Apr 2024 803rd alemelis 444 154 395ms 30 Sep 2024 804th DialFrost 🇸🇬 444 191 13ms 28 Sep 2023 804th CarsonChr 🇺🇸 444 191 19ms 6 Apr 2024 806th kyleclaassen 443 213 14ms 11 Mar 2022 806th yuchuehw 443 213 14ms 21 Jan 2024 806th RaBa21 🇭🇺 443 213 14ms 11 Aug 2025 809th CaedenHarper 🇨🇦 443 254 713ms 16 Oct 2025 810th two-bad 🇬🇧 442 192 15ms 7 Feb 2024 810th Michiocre 442 192 17ms 20 Feb 2024 810th eranws 442 192 15ms 23 Dec 2024 813th Ripick 442 242 490ms 11 Jul 2024 814th CaedenHarper 🇨🇦 442 290 488ms 2 Nov 2025 815th CaedenHarper 🇨🇦 442 294 108ms 7 Nov 2025 816th JunkIce 441 190 530ms 3 Dec 2024 817th NerdyMcNerd42 441 214 14ms 25 Oct 2022 818th CaedenHarper 🇨🇦 441 254 113ms 7 Nov 2025 819th yzhs 🇩🇪 441 338 171ms 6 Jun 2022 820th MiffOttah 440 193 21ms 6 Oct 2024 821st CatsAreFluffy 439 215 16ms 30 Dec 2022 821st ridingqwerty 🇺🇸 439 215 14ms 13 Dec 2023 823rd Andrey2001 438 191 716ms 25 days ago 824th Yewzir 🇧🇪 438 288 3ms 18 Jan 2024 825th amollberg 🇸🇪 437 216 13ms 8 Jan 2022 826th perlebach 🇨🇿 436 149 3ms 3 Sep 2021 826th armin-k1 436 149 4ms 10 Sep 2021 828th mckymsh 435 195 16ms 4 Feb 2024 829th Andrey135296 435 217 13ms 17 Sep 2024 830th frosster 🇨🇦 434 216 2ms 19 Mar 2025 831st elisherer 🇮🇱 433 196 13ms 28 Sep 2021 832nd resoNathan 433 218 11ms 5 Jul 2024 833rd Yewzir 🇧🇪 433 260 966ms 24 Sep 2025 834th ian-h-chamberlain 🇺🇸 433 315 186ms 30 Jun 2022 835th TRexOnGit 432 222 532ms 16 Jan 2024 835th SpareManiKatti 432 222 505ms 7 Apr 2025 837th ComradeSquirrel 431 197 17ms 28 Mar 2026 838th henrytranter 431 219 15ms 1 Oct 2021 838th rschwa6308 🇺🇸 431 219 13ms 5 May 2023 838th yanjs 431 219 14ms 3 Jul 2025 841st madex 🇩🇪 430 302 98ms 14 Mar 2026 842nd mdnestor 429 220 14ms 27 Dec 2022 843rd msbranicky 429 318 230ms 3 Oct 2023 844th tomh1012 428 198 14ms 23 Aug 2021 844th acollett89 428 198 15ms 5 Aug 2025 846th SteveHales 428 208 127ms 20 Oct 2025 847th tamanugi 🇯🇵 428 304 123ms 4 Nov 2022 848th sergioabreu-g 428 319 228ms 20 Jun 2025 849th mokymok 🇺🇸 427 221 14ms 17 Nov 2021 849th hiichbindermax 427 221 14ms 5 Oct 2024 851st BREMAUCY 🇫🇷 427 262 102ms 29 Dec 2025 852nd msbranicky 427 295 3ms 11 Aug 2023 853rd CatsAreFluffy 426 199 15ms 30 Dec 2022 853rd alexsave 426 199 14ms 16 Oct 2025 855th Jacob385 426 264 1,075ms 28 Oct 2025 856th arcpolaris 424 226 573ms 22 days ago 857th CaedenHarper 🇨🇦 423 200 170ms 23 Aug 2025 858th lovernj 423 223 14ms 21 Jan 2022 858th Ailko 🇧🇪 423 223 16ms 5 May 2022 858th karhuthebear 423 223 15ms 11 May 2022 858th andre-lameirinhas 🇵🇹 423 223 13ms 26 Apr 2023 858th anarconic 423 223 16ms 7 Dec 2023 858th ffelixm 423 223 14ms 4 Jun 2025 864th TylerBloom 423 323 197ms 21 Mar 2024 865th pineapplebox 422 201 14ms 1 Apr 2022 866th BobDotCom 422 224 13ms 25 Mar 2022 866th sleepyStick 422 224 14ms 14 Jul 2022 868th Mabeloid 🇳🇴 421 199 730ms 18 Sep 2024 869th janAkali 🇷🇺 421 254 436ms 20 May 2024 870th abc7-12 420 205 2ms 2 Jun 2024 871st 1231234md5 🇨🇳 420 225 14ms 15 Dec 2023 871st billythegoat356 420 225 13ms 5 Jun 2024 873rd gbxdl 420 325 191ms 19 Jul 2022 874th cochrane 419 267 123ms 22 Mar 2024 875th GeorgeStechman 🇬🇧 418 203 15ms 4 Dec 2023 875th smclaughlin-cf 418 203 14ms 6 May 2025 877th trist224 🇫🇷 418 226 16ms 21 Feb 2023 878th MeWhenI 🇻🇦 418 337 7ms 25 Nov 2023 879th MeWhenI 🇻🇦 417 148 49ms 15 Dec 2021 880th mothcolada 🇺🇸 416 227 12ms 8 Oct 2021 880th zt14427 416 227 14ms 28 Sep 2023 880th ballaire 416 227 13ms 27 Jan 2024 880th jatloe 416 227 14ms 23 Oct 2024 884th retrohun 416 257 542ms 3 Mar 2026 885th blaztoma 🇱🇹 415 304 3ms 9 Nov 2025 886th zakariamouhid 414 205 18ms 22 Apr 2023 886th Protothor 414 205 13ms 20 Mar 2026 888th tobyLovick 414 228 15ms 10 Dec 2023 888th mathisfun271 414 228 13ms 6 Mar 2024 888th Mefred 414 228 14ms 29 Oct 2025 891st hamhub7 413 232 561ms 9 Aug 2022 892nd Ralac07 🇦🇺 412 206 12ms 24 Nov 2025 893rd Attero 🇸🇪 412 209 2ms 5 Aug 2022 894th twocatsinatrenchcoat 412 229 15ms 14 Apr 2022 894th cthierfelder 🇲🇨 412 229 14ms 14 Nov 2025 894th tomh1012 412 229 11ms 18 Feb 2026 897th tomh1012 412 260 563ms 26 days ago 898th EthanGrant1 411 230 15ms 10 Nov 2022 899th HumanoidCPU 410 207 14ms 23 Nov 2025 900th CaedenHarper 🇨🇦 410 225 149ms 25 Aug 2025 First Prev 801–900 of 1,415 Next Last