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 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 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 1st JayXon 🇺🇸 1,000 135 22ms 6 May 2023 2nd nwellnhof 🇩🇪 971 139 30ms 24 Jan 2022 3rd btnlq 944 143 10ms 24 Sep 2021 3rd ovs-code 🇩🇪 944 143 10ms 6 Jul 2025 5th Lydxn 🇨🇦 912 148 15ms 22 Sep 2021 6th pardouin 🇫🇷 877 154 17ms 16 May 2024 7th MeWhenI 🇻🇦 865 156 9ms 30 Jul 2024 8th blaztoma 🇱🇹 860 157 15ms 28 Dec 2025 9th Steffan153 🇫🇮 844 160 16ms 31 Jul 2024 9th Lv0Sys 🇵🇱 844 160 10ms 32 hours ago 11th ryyyn 🇺🇸 828 163 16ms 9 Dec 2025 12th GolfingSuccess 🇬🇷 823 164 16ms 18 Sep 2021 12th 5cw 🇺🇸 823 164 10ms 8 May 2024 14th sean-niemann 🇺🇸 818 165 18ms 9 Mar 2025 15th AlephSquirrel 813 166 14ms 10 Jun 2023 15th bricknellj 813 166 16ms 3 Apr 2025 17th lynn 808 167 10ms 13 Feb 2023 18th hallvabo 🇳🇴 804 168 23ms 8 Feb 2022 19th Seek64 🇩🇪 794 170 10ms 27 Nov 2025 20th edsrzf 🇳🇿 789 171 24ms 16 Dec 2025 21st SirBogman 🇺🇸 785 172 15ms 31 Jan 2024 22nd Irratix 🇳🇱 780 173 21ms 6 May 2022 23rd prplz 🇦🇺 754 179 10ms 13 Jan 2024 24th jared-hughes 750 180 16ms 9 Apr 2022 24th kg583 🇺🇸 750 180 16ms 33 hours ago 26th plcc0 726 186 17ms 9 days ago 27th inventshah 711 190 17ms 12 Nov 2022 27th stefangimmillaro 711 190 24ms 8 Aug 2023 27th lifthrasiir 🇰🇷 711 190 17ms 16 Nov 2024 30th duckyluuk 🇳🇱 685 197 18ms 23 Jun 2024 31st nullie 682 198 10ms 14 Jun 2022 31st emgordon154 682 198 9ms 16 Oct 2025 33rd snoozingnewt 🇨🇦 678 199 17ms 6 Dec 2025 34th orthoplex 🇨🇽 662 204 17ms 13 Oct 2021 35th jakobkordez 🇸🇮 659 205 17ms 30 Oct 2022 36th annaproxy 652 207 10ms 6 May 2022 37th StefanHabel 🇨🇦 649 208 10ms 8 Apr 2024 38th OllieBoyne 🇬🇧 640 211 10ms 19 Aug 2022 39th Artemis21 🇬🇧 637 212 16ms 3 Jan 2025 40th InigoK 🇺🇸 631 214 18ms 22 Sep 2025 41st mathisfun271 628 215 10ms 12 Feb 2024 41st anter69 🇭🇺 628 215 16ms 7 Jul 2025 43rd TFeld00 🇩🇰 625 216 16ms 19 May 2022 43rd andrewjc2000 625 216 28ms 15 May 2025 43rd CornerMercury 🇬🇧 625 216 16ms 1 Dec 2025 46th ndren 616 219 26ms 22 Nov 2023 46th neel11235813 616 219 19ms 1 Apr 2024 48th DialFrost 🇸🇬 611 221 18ms 18 Jan 2024 48th BREMAUCY 🇫🇷 611 221 17ms 22 Aug 2025 50th KatieLG 🇬🇧 608 222 10ms 7 Jul 2024 50th Flekay 🇩🇪 608 222 10ms 14 days ago 52nd guilhem-roy 🇫🇷 595 227 10ms 3 Mar 2022 53rd scpchicken 🇵🇼 590 229 17ms 13 Oct 2023 54th stu303 579 233 9ms 20 Jul 2022 55th davecame 572 236 17ms 19 Mar 2024 56th m42km 567 238 19ms 12 Nov 2023 57th CaedenHarper 🇨🇦 563 240 10ms 10 Aug 2025 58th commandz0 🇺🇸 558 242 10ms 27 Sep 2023 59th dokutan 556 243 17ms 9 Sep 2025 60th alemelis 551 245 16ms 27 Aug 2024 60th AstroOrbis 551 245 18ms 7 days ago 62nd FlorianCassayre 🇫🇷 547 247 11ms 21 Oct 2023 62nd janbehrens 🇩🇪 547 247 10ms 4 Dec 2024 64th Babafaba 542 249 16ms 29 Oct 2025 65th rucin93 🇵🇱 540 250 16ms 21 Jan 2024 66th cros107 🇦🇺 529 255 10ms 28 Jan 2024 66th RaBa21 🇭🇺 529 255 16ms 31 Jul 2025 68th CedricGebistorf 525 257 16ms 3 Mar 2022 69th te-chnical 519 260 23ms 18 Nov 2025 70th MarcMush 🇫🇷 517 261 16ms 14 Jan 2024 71st RYNO8 515 262 17ms 4 Sep 2023 72nd CatsAreFluffy 513 263 17ms 17 Feb 2024 73rd wh3n3v3r 🇨🇿 511 264 17ms 14 Nov 2024 74th SB-945 509 265 9ms 14 Mar 2024 75th robin-scragg 508 266 17ms 27 Aug 2025 76th ridingqwerty 🇺🇸 506 267 16ms 14 Feb 2024 77th albanian-laundromat 504 268 17ms 28 Jun 2025 77th FortuiteMan 🇫🇷 504 268 16ms 7 Jul 2025 79th JOrE20 484 279 10ms 2 Dec 2025 80th nemoyatpeace 479 282 17ms 12 Jan 2026 1–80 of 114 Next Last
