The Taxicab Numbers hole will go live in approximately 41 hours. Why not try and solve it ahead of time?
12 Days of Christmas in C 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 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 Bytes Time Submitted 1st Lydxn 🇨🇦 1,000 431 2ms 5 Jul 2022 2nd NewDefectus 🇮🇱 998 432 2ms 10 Feb 2021 3rd BlankSpruce 982 439 1ms 1 Apr 2025 4th JayXon 🇺🇸 971 444 2ms 9 Dec 2025 5th Alex-x90 🇺🇸 943 457 2ms 26 Jul 2023 6th sean-niemann 🇺🇸 894 482 1ms 16 Jan 2022 7th speles 🇺🇦 892 483 1ms 29 Oct 2023 8th nwellnhof 🇩🇪 889 485 1ms 9 Oct 2020 8th inventshah 889 485 1ms 13 Jul 2023 10th MostParsingVex 887 486 1ms 28 Dec 2024 10th KasperKivimaeki 🇫🇮 887 486 2ms 19 days ago 12th lyphyser 880 490 1ms 18 Jun 2023 13th ListeriaM 878 491 1ms 20 Aug 2023 13th GolfingSuccess 🇬🇷 878 491 2ms 25 Dec 2023 15th prplz 🇦🇺 876 492 1ms 29 Oct 2020 15th lynn 876 492 2ms 21 Oct 2021 15th jupj 🇫🇮 876 492 1ms 19 Sep 2022 18th ovs-code 🇩🇪 872 494 2ms 8 Jun 2024 19th primo-ppcg 🇹🇭 869 496 1ms 10 Sep 2019 20th xiaoyiming123 859 502 2ms 11 Aug 2025 21st byronknoll 🇺🇸 855 504 1ms 21 Jan 2024 22nd tsunderu 🇯🇵 853 505 1ms 1 Sep 2021 23rd gastropner 852 506 2ms 5 Jul 2025 24th Attero 🇸🇪 848 508 1ms 30 Oct 2020 24th kdx2a 848 508 1ms 12 Feb 2025 26th MeWhenI 🇻🇦 847 509 1ms 29 Nov 2022 26th TeodorDyakov 🇧🇬 847 509 1ms 7 Sep 2025 28th tmyt 845 510 2ms 25 Dec 2025 29th filharmonista 843 511 1ms 16 Mar 2020 30th JohandeRuiter 🇳🇱 840 513 2ms 1 Dec 2023 31st pandapawskat 839 514 1ms 7 Sep 2021 31st AlephSquirrel 839 514 1ms 16 Jul 2022 31st 09cf 839 514 2ms 29 Dec 2023 31st nomennescio 839 514 2ms 7 Dec 2024 31st matricronia 839 514 2ms 29 Jan 2026 36th Irratix 🇳🇱 835 516 2ms 8 Mar 2022 36th jared-hughes 835 516 2ms 24 Jun 2022 38th Shanethegamer 🇺🇸 834 517 2ms 22 Mar 2023 39th vacherin 🇨🇭 832 518 2ms 26 Dec 2023 40th Jonatan6 🇩🇰 830 519 1ms 1 Sep 2021 40th tegenton 830 519 1ms 30 Sep 2021 42nd rambox11 829 520 1ms 19 Mar 2019 42nd janbehrens 🇩🇪 829 520 1ms 25 Oct 2021 42nd RealAMC 🇳🇿 829 520 1ms 19 Dec 2023 42nd Yewzir 🇧🇪 829 520 1ms 9 Feb 2024 42nd snoozingnewt 🇨🇦 829 520 1ms 13 Oct 2025 47th james-parky 826 522 1ms 28 Jun 2024 47th prestosilver 🇺🇸 826 522 2ms 25 Dec 2025 49th warmCabin 824 523 2ms 10 Nov 2023 50th SubsTheTechnomancer 823 524 1ms 27 Feb 2023 50th tvcv901 823 524 1ms 13 Mar 2023 50th neel11235813 823 524 1ms 26 Mar 2024 53rd CatsAreFluffy 821 525 1ms 14 Dec 2023 53rd LuisGoncalves05 🇵🇹 821 525 1ms 17 Jul 2025 53rd AlexKent3141 821 525 2ms 14 Sep 2025 56th madex 🇩🇪 819 526 1ms 1 May 2021 57th MistyRevson 🇯🇵 818 527 1ms 29 Jul 2022 57th HumanoidCPU 818 527 1ms 19 Jan 2025 59th emgordon154 816 528 2ms 23 Dec 2021 60th c0d3-4-F00d 🇩🇪 815 529 1ms 3 Jul 2021 60th cmayer777 815 529 2ms 17 Oct 2022 62nd KenanHanke 813 530 2ms 20 Feb 2023 63rd Re-Adventures 🇮🇳 812 531 1ms 4 Jan 2022 64th boxjelly 810 532 1ms 17 Feb 2021 64th Maashau 810 532 2ms 23 Dec 2025 66th djeedjay 🇳🇱 804 536 1ms 27 Oct 2020 67th kusune 🇯🇵 801 538 1ms 21 Sep 2023 67th Maltaran 🇵🇱 801 538 2ms 26 Feb 2026 69th Sora1248 🇩🇪 800 539 1ms 26 Dec 2023 69th ComradeSquirrel 800 539 2ms 9 hours ago 71st AkashTandon167 798 540 2ms 7 Nov 2021 72nd kallmi28 🇨🇿 795 542 2ms 23 Nov 2023 72nd IdkWhatIsIdk 795 542 2ms 28 Oct 2024 74th cubed-guy 794 543 1ms 2 Oct 2023 74th luuumine 🇫🇷 794 543 2ms 7 Nov 2025 76th ryguyNelson 792 544 2ms 19 Jul 2021 76th dokutan 792 544 2ms 30 Mar 2025 78th jgbaldwinbrown 791 545 1ms 30 Jun 2021 78th fergusleen 791 545 2ms 24 Dec 2023 80th thebuilder6 🇺🇸 788 547 1ms 11 Dec 2021 80th james-downey 788 547 1ms 14 Jul 2022 82nd funnsam 🇭🇰 786 548 1ms 12 Jun 2023 83rd ei14 784 550 1ms 23 Jun 2021 83rd winstonyli 784 550 1ms 27 Mar 2022 83rd kkoenig 784 550 1ms 23 Dec 2023 83rd heanyang1 784 550 1ms 20 Apr 2025 87th msbranicky 782 551 1ms 28 Aug 2023 88th cperry164 781 552 2ms 4 Jan 2022 89th vinnnnncent 779 553 1ms 28 Jun 2020 89th blaztoma 🇱🇹 779 553 2ms 17 Aug 2025 91st aksyristos 778 554 2ms 13 Jan 2023 91st Herbert00709 🇵🇱 778 554 1ms 25 Apr 2024 93rd TornadoCookie 774 557 2ms 4 May 2023 93rd guilhem-roy 🇫🇷 774 557 1ms 28 Jun 2023 95th Lv0Sys 🇵🇱 772 558 1ms 30 Nov 2025 96th SirObby 🇫🇮 771 559 1ms 25 Jun 2025 97th fraserli 🇦🇺 770 560 2ms 2 Jan 2022 98th BenAns 768 561 1ms 26 Sep 2020 98th MinorLegato 🇸🇪 768 561 1ms 29 Apr 2022 100th calinous 🇷🇴 766 563 1ms 3 Mar 2023 1–100 of 183 Next Last
