The Taxicab Numbers hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Happy Numbers 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 591st AVDestroyer 799 59 11ms 4 Sep 2023 591st eiburns 799 59 10ms 13 Sep 2023 591st m42km 799 59 11ms 7 Oct 2023 591st elgan65536 🇺🇸 799 59 10ms 4 Apr 2024 591st KasperKivimaeki 🇫🇮 799 59 9ms 5 Jul 2025 591st dirckvdende 799 59 10ms 6 Jul 2025 591st JOrE20 799 59 10ms 25 Feb 2026 608th emplv 🇱🇻 797 62 11ms 15 Dec 2021 608th rucin93 🇵🇱 797 62 12ms 19 Apr 2024 608th vlpx 🇫🇮 797 62 12ms 18 Jun 2024 611th SirFireball3521 796 39 164ms 22 Mar 2023 612th primo-ppcg 🇹🇭 796 70 38ms 4 Jan 2024 612th stefangimmillaro 796 70 38ms 14 Jan 2024 614th MeWhenI 🇻🇦 795 44 3ms 12 Aug 2024 614th sisyphus-ppcg 🇦🇺 795 44 3ms 12 Aug 2024 614th DialFrost 🇸🇬 795 44 4ms 15 Aug 2024 614th ovs-code 🇩🇪 795 44 3ms 15 Aug 2024 614th Shanethegamer 🇺🇸 795 44 3ms 15 Aug 2024 614th GrayJoKing 🇦🇺 795 44 3ms 17 Aug 2024 614th emgordon154 795 44 3ms 19 Aug 2024 614th pardouin 🇫🇷 795 44 3ms 6 Sep 2024 614th sean-niemann 🇺🇸 795 44 3ms 13 Jan 2025 614th snoozingnewt 🇨🇦 795 44 3ms 30 Nov 2025 624th Yewzir 🇧🇪 793 54 5ms 14 Dec 2023 624th dokutan 793 54 6ms 19 May 2024 624th emgordon154 793 54 5ms 5 Dec 2024 624th edsrzf 🇳🇿 793 54 5ms 21 Jan 2025 624th kg583 🇺🇸 793 54 5ms 30 Jul 2025 624th snoozingnewt 🇨🇦 793 54 5ms 30 Nov 2025 624th DialFrost 🇸🇬 793 54 6ms 1 Jan 2026 631st neel11235813 791 55 432ms 10 Mar 2024 631st albanian-laundromat 🇺🇸 791 55 426ms 7 Oct 2025 631st dokutan 791 55 360ms 21 Feb 2026 634th flawr 790 73 136ms 24 Feb 2019 634th GrayJoKing 🇦🇺 790 73 136ms 5 Dec 2020 634th Shanethegamer 🇺🇸 790 73 140ms 15 Jul 2021 634th yzhs 🇩🇪 790 73 140ms 24 Jul 2021 634th MeWhenI 🇻🇦 790 73 139ms 15 Sep 2021 634th sisyphus-ppcg 🇦🇺 790 73 140ms 16 Mar 2022 634th DaCuteRaccoon 790 73 136ms 30 Nov 2022 634th DialFrost 🇸🇬 790 73 142ms 28 Jan 2023 634th pardouin 🇫🇷 790 73 147ms 21 Sep 2024 634th LostSyntax21 🇬🇧 790 73 152ms 8 Jan 2025 634th snoozingnewt 🇨🇦 790 73 148ms 5 Dec 2025 645th Shanethegamer 🇺🇸 788 114 3ms 7 Feb 2026 645th SuperFola 788 114 2ms 19 Feb 2026 645th CaedenHarper 🇨🇦 788 114 2ms 20 Mar 2026 645th dokutan 788 114 2ms 20 Mar 2026 649th GrayJoKing 🇦🇺 787 67 6ms 31 Jan 2025 650th Yewzir 🇧🇪 787 69 117ms 6 Dec 2023 651st clockworknazo 787 82 5ms 13 Oct 2022 651st ovs-code 🇩🇪 787 82 5ms 7 Feb 2023 653rd MeWhenI 🇻🇦 787 93 2ms 18 May 2022 654th sisyphus-ppcg 🇦🇺 787 108 332ms 16 Mar 2022 655th lifthrasiir 🇰🇷 786 28 3ms 29 Nov 2024 656th stevelamm 785 60 10ms 5 Oct 2018 656th tjtnorton 785 60 10ms 29 Nov 2018 656th giacomogallina 785 60 11ms 14 Jun 2019 656th cellobix 785 60 10ms 14 Aug 2019 656th mizuzimu 785 60 11ms 4 Feb 2020 656th ArmaanAS 785 60 10ms 8 Mar 2021 656th RDShah 785 60 10ms 26 Nov 2021 656th QuincyNash 🇺🇸 785 60 10ms 30 Nov 2022 656th msbranicky 785 60 13ms 25 Jul 2023 656th Hebelub 785 60 10ms 5 Jan 2024 656th wh3n3v3r 🇨🇿 785 60 9ms 16 Nov 2024 656th JunkIce 785 60 11ms 23 Feb 2025 656th ffelixm 785 60 10ms 12 Jun 2025 656th RaBa21 🇭🇺 785 60 9ms 10 Jul 2025 656th dcc5480 785 60 10ms 10 days ago 671st dmrichwa 🇺🇸 784 63 10ms 28 Jan 2023 671st targrik 784 63 11ms 19 Feb 2025 673rd inventshah 784 88 55ms 27 Jan 2023 674th hemphen 783 69 455ms 28 Aug 2022 675th jslip 781 35 33ms 5 Sep 2018 675th rak1507 🇬🇧 781 35 34ms 20 Sep 2021 677th primo-ppcg 🇹🇭 781 87 25ms 13 Jul 2021 678th HumanoidCPU 781 115 2ms 1 Jan 2026 678th KatieLG 🇬🇧 781 115 2ms 21 Feb 2026 680th bforte 780 74 131ms 9 Dec 2018 680th annaproxy 780 74 130ms 12 Jan 2022 680th rak1507 🇬🇧 780 74 140ms 23 Feb 2022 680th Natanaelel 🇸🇪 780 74 143ms 31 May 2025 684th primo-ppcg 🇹🇭 779 54 1,396ms 11 May 2020 685th GrayJoKing 🇦🇺 777 56 451ms 23 Jul 2024 685th snoozingnewt 🇨🇦 777 56 451ms 28 Nov 2025 685th BREMAUCY 🇫🇷 777 56 452ms 6 Dec 2025 688th bluebear94 776 40 186ms 12 Feb 2018 688th sisyphus-ppcg 🇦🇺 776 40 151ms 31 Jan 2023 690th msrawson 773 61 10ms 31 Aug 2018 691st m-tkach 🇺🇦 772 110 341ms 5 Dec 2023 692nd prplz 🇦🇺 769 75 145ms 12 Oct 2021 692nd YAJUE114514 769 75 139ms 30 Jul 2025 694th snoozingnewt 🇨🇦 768 84 3ms 9 Dec 2025 695th Yewzir 🇧🇪 767 90 58ms 30 Dec 2023 696th ffelixm 765 71 117ms 12 Jun 2025 697th dokutan 765 86 430ms 13 Mar 2026 698th bendiscz 765 111 312ms 20 Apr 2020 699th lynn 764 57 436ms 17 Feb 2024 699th duckyluuk 🇳🇱 764 57 382ms 27 Mar 2024 First Prev 601–700 of 3,225 Next Last