The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 days. Why not try and solve them ahead of time?
Fractions in Python 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 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 397th Stockoh 🇫🇷 512 121 10ms 5 Nov 2023 397th SodiumFluoride 512 121 11ms 4 Dec 2023 397th UriyaBA 512 121 11ms 6 Dec 2023 397th epic-programmer-guy 512 121 10ms 31 Dec 2023 397th DavidVadnais 512 121 10ms 13 Feb 2024 397th Mathrew2012 512 121 9ms 15 Aug 2024 407th Amheus 508 122 18ms 7 Oct 2023 407th dtbao20 🇻🇳 508 122 14ms 1 Oct 2024 407th WillowWispy 508 122 10ms 25 May 2025 410th kenny14231 504 123 10ms 5 Aug 2022 410th AZ9tumas 504 123 9ms 23 Oct 2022 410th NerdyMcNerd42 504 123 10ms 26 Oct 2022 410th Zhenyu-Bo 504 123 10ms 31 Jul 2025 414th HerLovelyTentacles 500 124 11ms 18 Nov 2021 414th karhuthebear 500 124 10ms 9 May 2022 414th julienlamoureux78 500 124 10ms 12 Aug 2022 414th smw5qz 500 124 18ms 10 Sep 2022 414th ItsMeNoobieboy 500 124 10ms 20 Feb 2023 414th jtaxen 500 124 10ms 22 Jun 2023 414th KingReeve 500 124 10ms 25 Nov 2024 414th jacekwladzinski 500 124 17ms 5 Oct 2025 414th Hyperoplex145 500 124 10ms 2 Jan 2026 423rd myleopard 496 125 10ms 13 Oct 2021 423rd VV1Git 496 125 10ms 31 Mar 2023 423rd MisterrLuck 496 125 10ms 1 Sep 2023 423rd desecaw13 496 125 10ms 24 Jan 2025 427th jjbvtk 492 126 17ms 8 Sep 2021 427th AKASme 492 126 10ms 6 Apr 2025 427th lucasging 492 126 11ms 14 Jun 2025 430th Ch3ngL0rd 488 127 11ms 17 Jan 2024 430th Ryan-M-Smith 488 127 10ms 22 Apr 2024 432nd mokymok 🇺🇸 484 128 16ms 25 Oct 2021 432nd ehulinsky 🇺🇸 484 128 221ms 10 Nov 2021 432nd vodker1 484 128 10ms 8 Mar 2022 432nd xnacly 🇩🇪 484 128 10ms 6 Jul 2023 432nd Pale-Vessel 484 128 10ms 10 Jan 2024 432nd JoaoFelipe3 484 128 11ms 14 Jan 2024 432nd xdaniel-lim 484 128 11ms 27 Jan 2025 432nd Troon 484 128 11ms 18 Feb 2025 440th pmooreh 481 129 18ms 18 Aug 2022 440th Florian-Mt 481 129 17ms 2 Oct 2023 440th tvh-statsig 481 129 10ms 23 Aug 2024 440th rchalamala 481 129 10ms 2 Jan 2025 444th jhpaques 🇫🇷 477 130 10ms 28 Jul 2022 444th azure-blondon 477 130 15ms 10 Aug 2024 446th eshilo-draper 473 131 11ms 20 Oct 2022 446th PotatoSaladOverlord 473 131 10ms 9 May 2023 446th yuchuehw 473 131 16ms 18 Jan 2024 446th Bit125 473 131 10ms 29 Mar 2024 446th Ythaenagor 473 131 11ms 5 Aug 2024 451st AkashTandon167 470 132 16ms 1 Nov 2021 451st scottwday 🇨🇦 470 132 11ms 30 Nov 2021 451st ms-tingliang 470 132 10ms 5 Aug 2022 451st Bananapants22 470 132 10ms 10 Aug 2022 451st andre-lameirinhas 🇵🇹 470 132 13ms 15 Aug 2022 451st sam-james-harding 470 132 10ms 24 Aug 2022 451st brimstonetrader 470 132 17ms 22 Jan 2024 458th ArmaanAS 466 133 11ms 29 Nov 2021 458th DanielPeterssonAI 466 133 11ms 18 Mar 2023 458th chartung17 466 133 11ms 14 Jan 2024 458th mrmena 🇦🇺 466 133 10ms 23 Mar 2024 458th zgialor-lab 466 133 11ms 16 days ago 463rd feherd 463 134 11ms 18 Apr 2022 463rd LukasFolwarczny 🇨🇿 463 134 296ms 16 Sep 2022 463rd loganmacdougall 🇨🇦 463 134 10ms 2 Oct 2022 463rd byteDJINN 463 134 10ms 17 Jan 2024 467th petroselo 459 135 34ms 13 Apr 2022 467th andrewgopher 459 135 10ms 25 Jun 2022 469th PhysicDev 🇫🇷 456 136 10ms 13 Nov 2021 469th holmest14 456 136 10ms 6 Aug 2024 471st za3k 453 137 11ms 9 Oct 2022 471st Vaekor 453 137 10ms 10 Jul 2023 473rd benwilliamgraham 449 138 23ms 22 Oct 2021 473rd NicoAdams 449 138 10ms 21 Nov 2021 473rd dymowski 449 138 11ms 15 Dec 2022 476th RandGuy 446 139 11ms 23 Nov 2022 476th kevinnaviapaiva 446 139 10ms 24 Feb 2025 478th jiaminglimjm 🇲🇾 443 140 11ms 20 Mar 2023 478th taesungh 443 140 12ms 20 Oct 2023 480th estomagordo 🇳🇱 440 141 16ms 6 Dec 2021 First Prev 401–480 of 573 Next Last
