The Taxicab Numbers hole will go live in approximately 3 days. Why not try and solve it ahead of time?
ISBN in all languages 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 899th hacker112 🇸🇪 661 107 10ms 24 Jun 2024 902nd Schmitt-Very-Cool 661 160 432ms 30 Sep 2025 903rd madex 🇩🇪 661 183 163ms 7 Aug 2025 904th akshatj27 🇦🇶 660 68 39ms 10 Jan 2022 904th Haksell 🇦🇶 660 68 42ms 23 Feb 2023 904th blaztoma 🇱🇹 660 68 40ms 7 days ago 907th HumanoidCPU 660 107 2,423ms 3 Mar 2025 908th Lv0Sys 🇵🇱 660 197 41ms 13 Dec 2025 909th jhpaques 🇫🇷 659 131 2ms 13 Dec 2022 910th The-Wolfson 659 157 110ms 16 Dec 2024 911th Yewzir 🇧🇪 658 87 808ms 15 Nov 2025 912th Bonjour27891 🇻🇳 657 105 19ms 15 Jul 2022 912th stefangimmillaro 657 105 11ms 26 Dec 2022 912th betaveros 657 105 10ms 1 Jan 2023 912th 5cw 🇺🇸 657 105 11ms 3 May 2023 912th minhtrancccp 657 105 11ms 26 Sep 2023 917th dokutan 657 133 2ms 10 Nov 2025 918th heanyang1 657 140 2ms 21 May 2025 919th Yewzir 🇧🇪 656 139 394ms 24 Feb 2023 920th dokutan 654 132 1ms 13 Aug 2024 920th gonengazit 654 132 2ms 13 Apr 2025 922nd jhpaques 🇫🇷 654 199 41ms 13 Dec 2022 923rd HumanoidCPU 652 118 421ms 3 Mar 2025 924th Anonymousellama21 652 141 2ms 14 Apr 2022 925th 4hg 🇺🇸 651 69 40ms 30 Nov 2022 925th Andriamanitra 🇫🇮 651 69 37ms 17 Apr 2023 927th Bulmenisaurus 651 106 11ms 2 Feb 2025 928th jared-hughes 650 40 41ms 29 Jul 2022 928th edsrzf 🇳🇿 650 40 43ms 29 Mar 2026 930th DialFrost 🇸🇬 650 116 10ms 12 Dec 2024 931st HumanoidCPU 650 186 161ms 4 Mar 2025 932nd xyangst 649 109 9ms 7 Oct 2024 932nd snoozingnewt 🇨🇦 649 109 10ms 9 Oct 2025 934th MeWhenI 🇻🇦 648 47 2ms 11 Jan 2022 935th KevinMarquette 🇺🇸 648 85 217ms 17 Apr 2022 935th snoozingnewt 🇨🇦 648 85 310ms 20 Nov 2023 937th akamayu-ouo 🇹🇼 648 142 1ms 8 Jul 2024 937th FoxInTheClouds 648 142 2ms 20 Feb 2026 939th saito-ta 🇯🇵 645 102 28ms 1 Jul 2022 940th fourth-bit 645 107 10ms 10 Jul 2024 940th fuzzylojik-golf 🇺🇸 645 107 11ms 19 May 2025 940th solisolu 645 107 12ms 25 Nov 2025 943rd cbrt-x 645 164 397ms 16 Jan 2022 944th BREMAUCY 🇫🇷 644 202 41ms 14 Feb 2025 945th mckymsh 643 110 10ms 17 Feb 2024 945th madex 🇩🇪 643 110 10ms 6 Jun 2024 945th gigaprofisi 🇺🇸 643 110 10ms 4 Sep 2025 948th emgordon154 643 126 5ms 20 Feb 2025 949th Re-Adventures 🇮🇳 643 143 2ms 7 Feb 2022 949th DrPiranoid 643 143 2ms 21 Oct 2022 951st jwhear 🇺🇸 643 188 149ms 9 May 2023 952nd SirBogman 🇺🇸 642 96 518ms 16 Jan 2024 952nd Jacob385 642 96 457ms 13 Nov 2024 954th MeWhenI 🇻🇦 642 110 2,457ms 24 Oct 2024 955th denkyuu1 641 70 38ms 18 Feb 2026 956th MeWhenI 🇻🇦 641 96 136ms 25 Oct 2024 957th prplz 🇦🇺 639 108 14ms 11 Jan 2022 957th galloj 🇨🇿 639 108 10ms 21 Sep 2022 957th TaserTheFox 🇺🇸 639 108 11ms 3 Apr 2023 957th cros107 🇦🇺 639 108 11ms 10 Aug 2025 961st DialFrost 🇸🇬 639 117 112ms 18 Jun 2024 962nd sjrct 639 144 2ms 4 Aug 2024 963rd astdefu 639 173 479ms 9 Dec 2022 964th Natanaelel 🇸🇪 637 62 32ms 21 Jun 2022 965th m-tkach 🇺🇦 636 121 405ms 10 Jan 2022 965th arctouch-cristiannevianna 636 121 430ms 1 Mar 2024 965th acer-xq 636 121 461ms 5 Aug 2024 968th tomh1012 636 174 1,364ms 16 days ago 969th dokutan 635 205 39ms 31 Oct 2024 970th dokutan 634 48 2ms 15 Nov 2024 971st biocommando 🇫🇮 634 145 2ms 26 Dec 2022 971st kallmi28 🇨🇿 634 145 2ms 13 Oct 2023 971st rifatx 634 145 1ms 14 Jul 2024 974th cefqrn 633 109 11ms 24 Dec 2022 974th AlexanderFair 633 109 11ms 11 Jul 2023 974th andrewjc2000 633 109 11ms 9 Mar 2025 974th tomh1012 633 109 11ms 4 Mar 2026 978th Kokusui 🇯🇵 633 132 5ms 22 Jul 2024 979th bwat2 633 167 395ms 13 Jan 2022 979th rifatx 633 167 398ms 23 Jul 2024 981st vgamula 🇺🇦 633 195 32ms 31 Oct 2023 982nd DialFrost 🇸🇬 632 71 38ms 26 Dec 2024 983rd recursive-x 632 175 439ms 24 Jan 2023 984th 0xjac 🇨🇭 632 210 329ms 9 Jun 2025 985th JRaspass 🇬🇧 630 170 2ms 9 Sep 2022 986th fuzzylojik-golf 🇺🇸 629 98 508ms 6 Jul 2025 987th akamayu-ouo 🇹🇼 628 176 361ms 8 Jul 2024 988th MeWhenI 🇻🇦 627 93 301ms 14 Feb 2023 989th sultan 627 110 11ms 24 Feb 2024 989th fgrosshans 🇫🇷 627 110 10ms 16 Jul 2024 989th InigoK 🇺🇸 627 110 14ms 22 Sep 2025 989th vhoulbreque 🇫🇷 627 110 11ms 25 Nov 2025 993rd NicolasBn 🇫🇷 626 88 331ms 11 Jan 2022 994th SkimnerPhi 626 113 10ms 11 Mar 2022 994th msbranicky 626 113 9ms 8 Sep 2023 996th rifatx 626 123 431ms 14 Jul 2024 997th billings7 🇬🇧 626 208 41ms 19 May 2024 998th Yewzir 🇧🇪 623 120 113ms 1 Dec 2023 999th MeWhenI 🇻🇦 622 67 3ms 15 Apr 2023 1,000th neihousaigaai 622 111 11ms 11 Jan 2022 First Prev 901–1,000 of 1,694 Next Last