The Taxicab Numbers hole will go live in approximately 37 hours. Why not try and solve it ahead of time?
Reversi 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 Huffman Encoder 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 Huffman Encoder 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 299th bricknellj 631 126 23ms 6 Feb 2025 299th KatieLG 🇬🇧 631 126 2,345ms 15 Sep 2025 299th Flekay 🇩🇪 631 126 15ms 15 Feb 2026 304th AlephSquirrel 622 128 33ms 4 Jun 2024 305th error256 622 238 4,079ms 15 Apr 2025 306th MeWhenI 🇻🇦 619 157 10ms 20 Jun 2024 307th ndren 617 129 258ms 11 Jul 2025 308th ovs-code 🇩🇪 617 137 161ms 17 Apr 2025 309th emgordon154 616 150 12ms 10 Dec 2024 310th Shanethegamer 🇺🇸 615 158 9ms 13 Jun 2024 311th GrayJoKing 🇦🇺 612 138 144ms 14 Aug 2024 311th error256 612 138 128ms 6 May 2025 313th AlephSquirrel 611 225 42ms 21 Oct 2024 314th MeWhenI 🇻🇦 609 255 6ms 10 Jun 2024 315th madeforlosers 606 162 55ms 30 Mar 2026 316th MeWhenI 🇻🇦 606 219 8ms 10 Jun 2024 317th retrohun 600 202 182ms 19 Aug 2024 318th galloj 🇨🇿 599 123 31ms 9 Jun 2024 319th Shanethegamer 🇺🇸 599 189 588ms 12 Jun 2024 320th jatloe 598 133 377ms 28 Oct 2024 321st Shanethegamer 🇺🇸 597 203 408ms 13 Jun 2024 322nd stefangimmillaro 595 124 37ms 12 Nov 2025 323rd GolfingSuccess 🇬🇷 594 134 25ms 1 Jun 2024 324th MeWhenI 🇻🇦 594 204 533ms 27 Jul 2024 325th bizy-coder 589 137 594ms 1 Jun 2024 326th Shanethegamer 🇺🇸 588 234 42ms 4 Oct 2024 327th bzijlema 🇳🇱 585 136 38ms 14 Jan 2026 328th tatzyr 🇯🇵 582 113 141ms 26 Mar 2025 329th Shanethegamer 🇺🇸 582 231 662ms 24 Sep 2025 330th CaedenHarper 🇨🇦 581 327 380ms 20 Nov 2025 331st MeWhenI 🇻🇦 580 145 926ms 15 Sep 2025 332nd blaztoma 🇱🇹 577 138 37ms 11 Dec 2025 332nd Lv0Sys 🇵🇱 577 138 27ms 23 Feb 2026 334th Shanethegamer 🇺🇸 574 202 118ms 13 Jun 2024 335th bizy-coder 572 139 44ms 1 Jun 2024 335th cros107 🇦🇺 572 139 32ms 19 Jun 2024 337th bac0id 572 259 76ms 24 Jun 2024 338th JOrE20 570 172 53ms 12 Feb 2026 339th Yewzir 🇧🇪 569 233 7ms 9 Jun 2024 339th rucin93 🇵🇱 569 233 43ms 8 Dec 2025 341st davecame 568 140 22ms 16 Jul 2024 341st Emutis 🇱🇹 568 140 27ms 12 Dec 2025 343rd error256 567 90 5ms 4 Sep 2024 344th D-MOVE 🇵🇭 567 116 73ms 4 Feb 2026 345th MeWhenI 🇻🇦 563 295 36ms 12 Jul 2025 346th snoozingnewt 🇨🇦 559 252 116ms 20 Nov 2025 347th dokutan 554 133 32ms 15 Aug 2024 348th Shanethegamer 🇺🇸 554 189 6ms 28 Sep 2024 349th Shanethegamer 🇺🇸 551 152 1,429ms 1 Jun 2024 350th Yewzir 🇧🇪 549 268 212ms 9 Jun 2024 351st MeWhenI 🇻🇦 545 155 151ms 3 Aug 2024 352nd Lv0Sys 🇵🇱 545 349 361ms 11 Dec 2025 353rd vang1ong7ang 🇦🇶 541 147 26ms 3 days ago 354th Shanethegamer 🇺🇸 540 171 86ms 13 Jun 2024 355th dokutan 539 182 14ms 15 Jun 2025 356th dokutan 537 172 17ms 1 Jul 2024 357th dokutan 529 159 953ms 30 Aug 2025 358th OllieBoyne 🇬🇧 527 151 30ms 6 Jun 2024 359th jerrandolph 524 363 379ms 29 Sep 2025 360th commandz0 🇺🇸 523 152 28ms 3 Jun 2024 361st wh3n3v3r 🇨🇿 520 153 53ms 12 Nov 2024 362nd bac0id 517 237 2ms 24 Jun 2024 363rd Yax42 🇫🇷 515 261 573ms 16 Oct 2025 364th dokutan 514 157 533ms 14 Mar 2026 365th StefanHabel 🇨🇦 513 155 340ms 1 Apr 2026 366th msbranicky 511 372 353ms 14 Aug 2024 367th ZakkkkAttackkkk 🇵🇭 504 158 50ms 9 Feb 2026 367th dokutan 504 158 22ms 14 Mar 2026 369th olleicua 🇺🇸 498 132 42ms 25 Feb 2025 370th MeWhenI 🇻🇦 497 186 16ms 10 Jun 2024 371st dokutan 494 171 127ms 21 Jun 2025 372nd h3ra993huskp 🇯🇵 490 274 668ms 30 Nov 2025 373rd vang1ong7ang 🇦🇶 489 169 205ms 2 days ago 374th Shanethegamer 🇺🇸 485 228 4ms 13 Jun 2024 375th Shanethegamer 🇺🇸 484 136 44ms 1 Jun 2024 376th mousetail 🇳🇱 482 183 22ms 27 Sep 2024 377th Yewzir 🇧🇪 482 371 26ms 9 Jun 2024 378th Yewzir 🇧🇪 481 323 6ms 9 Jun 2024 379th msbranicky 477 278 8ms 11 Aug 2024 380th bac0id 477 284 455ms 24 Jun 2024 381st EnTerr 474 168 23ms 5 Jun 2024 382nd msbranicky 467 315 215ms 14 Aug 2024 383rd anter69 🇭🇺 465 171 30ms 20 Feb 2026 384th ahmetdemirag 🇨🇾 463 172 47ms 5 Feb 2025 385th dokutan 463 290 981ms 24 Sep 2025 386th Yewzir 🇧🇪 463 293 427ms 22 Dec 2024 387th dokutan 461 191 606ms 15 Jun 2024 388th hacker112 🇸🇪 461 213 16ms 27 Jun 2024 389th MeWhenI 🇻🇦 461 299 44ms 3 Sep 2024 390th dokutan 447 172 21ms 27 Dec 2025 391st msbranicky 445 349 6ms 14 Aug 2024 392nd yuchuehw 442 180 21ms 4 Jun 2024 393rd CaedenHarper 🇨🇦 439 309 480ms 21 Oct 2025 394th BREMAUCY 🇫🇷 428 186 24ms 4 Oct 2025 394th aksyristos 428 186 21ms 27 Mar 2026 396th acollett89 425 231 12ms 18 Jul 2025 397th bac0id 424 317 520ms 24 Jun 2024 398th Yewzir 🇧🇪 423 188 16ms 10 Jun 2024 399th targrik 423 245 29ms 29 Jul 2025 400th prestosilver 🇺🇸 419 289 383ms 46 hours ago First Prev 301–400 of 478 Next Last