QR Decoder in Python 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 1st JayXon 🇺🇸 1,000 135 28ms 6 May 2023 2nd nwellnhof 🇩🇪 971 139 30ms 24 Jan 2022 3rd btnlq 944 143 10ms 24 Sep 2021 3rd ovs-code 🇩🇪 944 143 9ms 6 Jul 2025 5th Lydxn 🇨🇦 912 148 15ms 22 Sep 2021 6th pardouin 🇫🇷 877 154 15ms 16 May 2024 7th MeWhenI 🇻🇦 865 156 9ms 30 Jul 2024 8th Steffan153 🇫🇮 844 160 16ms 31 Jul 2024 9th GolfingSuccess 🇬🇷 823 164 15ms 18 Sep 2021 9th 5cw 🇺🇸 823 164 9ms 8 May 2024 11th sean-niemann 🇺🇸 818 165 15ms 9 Mar 2025 12th AlephSquirrel 813 166 12ms 10 Jun 2023 12th bricknellj 813 166 16ms 3 Apr 2025 14th lynn 808 167 9ms 13 Feb 2023 15th hallvabo 🇳🇴 804 168 23ms 8 Feb 2022 16th Seek64 🇩🇪 794 170 10ms 6 days ago 17th ryyyn 🇺🇸 789 171 16ms 7 days ago 18th SirBogman 🇺🇸 785 172 20ms 31 Jan 2024 19th Irratix 🇳🇱 780 173 21ms 6 May 2022 20th edsrzf 🇳🇿 758 178 38ms 4 Oct 2025 21st prplz 🇦🇺 754 179 10ms 13 Jan 2024 22nd jared-hughes 750 180 15ms 9 Apr 2022 23rd kg583 🇺🇸 714 189 15ms 31 Jan 2024 24th inventshah 711 190 16ms 12 Nov 2022 24th stefangimmillaro 711 190 24ms 8 Aug 2023 24th lifthrasiir 🇰🇷 711 190 17ms 16 Nov 2024 27th duckyluuk 🇳🇱 685 197 16ms 23 Jun 2024 28th nullie 682 198 10ms 14 Jun 2022 28th emgordon154 682 198 10ms 16 Oct 2025 30th orthoplex 🇨🇽 662 204 17ms 13 Oct 2021 31st jakobkordez 🇸🇮 659 205 16ms 30 Oct 2022 32nd annaproxy 652 207 10ms 6 May 2022 33rd StefanHabel 🇨🇦 649 208 11ms 8 Apr 2024 34th OllieBoyne 🇬🇧 640 211 10ms 19 Aug 2022 35th Artemis21 🇬🇧 637 212 17ms 3 Jan 2025 36th InigoK 🇺🇸 631 214 15ms 22 Sep 2025 36th blaztoma 🇱🇹 631 214 17ms 15 days ago 38th mathisfun271 628 215 10ms 12 Feb 2024 38th anter69 🇭🇺 628 215 15ms 7 Jul 2025 40th TFeld00 🇩🇰 625 216 16ms 19 May 2022 40th andrewjc2000 625 216 26ms 15 May 2025 40th CornerMercury 🇬🇧 625 216 23ms 2 days ago 43rd ndren 616 219 25ms 22 Nov 2023 43rd neel11235813 616 219 21ms 1 Apr 2024 45th DialFrost 🇸🇬 611 221 16ms 18 Jan 2024 45th BREMAUCY 🇫🇷 611 221 17ms 22 Aug 2025 47th KatieLG 🇬🇧 608 222 9ms 7 Jul 2024 48th guilhem-roy 🇫🇷 595 227 9ms 3 Mar 2022 49th scpchicken 🇵🇼 590 229 17ms 13 Oct 2023 50th stu303 579 233 9ms 20 Jul 2022 51st davecame 572 236 18ms 19 Mar 2024 52nd m42km 567 238 19ms 12 Nov 2023 53rd CaedenHarper 🇨🇦 563 240 10ms 10 Aug 2025 54th commandblockguy 🇺🇸 558 242 10ms 27 Sep 2023 55th dokutan 556 243 16ms 9 Sep 2025 56th alemelis 551 245 19ms 27 Aug 2024 57th FlorianCassayre 🇫🇷 547 247 10ms 21 Oct 2023 57th janbehrens 🇩🇪 547 247 9ms 4 Dec 2024 59th Babafaba 542 249 20ms 29 Oct 2025 60th rucin93 🇵🇱 540 250 17ms 21 Jan 2024 61st cros107 🇦🇺 529 255 10ms 28 Jan 2024 61st RaBa21 🇭🇺 529 255 16ms 31 Jul 2025 63rd CedricGebistorf 525 257 16ms 3 Mar 2022 64th te-chnical 519 260 24ms 14 days ago 65th MarcMush 🇫🇷 517 261 16ms 14 Jan 2024 66th RYNO8 515 262 16ms 4 Sep 2023 67th CatsAreFluffy 513 263 16ms 17 Feb 2024 68th wh3n3v3r 🇨🇿 511 264 16ms 14 Nov 2024 69th SB-945 509 265 9ms 14 Mar 2024 70th robin-scragg 508 266 16ms 27 Aug 2025 71st ridingqwerty 🇺🇸 506 267 16ms 14 Feb 2024 72nd albanian-laundromat 504 268 17ms 28 Jun 2025 72nd FortuiteMan 🇫🇷 504 268 15ms 7 Jul 2025 74th snoozingnewt 🇺🇸 496 272 17ms 29 Sep 2025 75th JOrE20 🇺🇸 484 279 10ms 26 hours ago 1–75 of 109 Next Last
