QR Decoder in Python in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Erlang 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 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 Erlang 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 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 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 Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 1st JayXon 🇺🇸 1,000 135 26ms 6 May 2023 2nd nwellnhof 🇩🇪 971 139 32ms 24 Jan 2022 3rd btnlq 944 143 14ms 24 Sep 2021 3rd ovs-code 🇩🇪 944 143 14ms 6 Jul 2025 5th Lydxn 🇨🇦 912 148 17ms 22 Sep 2021 6th pardouin 🇫🇷 877 154 20ms 16 May 2024 7th MeWhenI 🇻🇦 865 156 13ms 30 Jul 2024 8th Steffan153 🇫🇮 844 160 18ms 31 Jul 2024 9th GolfingSuccess 🇬🇷 823 164 20ms 18 Sep 2021 9th 5cw 🇺🇸 823 164 13ms 8 May 2024 11th sean-niemann 🇺🇸 818 165 19ms 9 Mar 2025 12th AlephSquirrel 813 166 16ms 10 Jun 2023 12th bricknellj 813 166 20ms 3 Apr 2025 14th lynn 808 167 13ms 13 Feb 2023 15th hallvabo 🇳🇴 804 168 28ms 8 Feb 2022 16th SirBogman 🇺🇸 785 172 20ms 31 Jan 2024 17th Irratix 🇳🇱 780 173 24ms 6 May 2022 18th edsrzf 🇳🇿 758 178 29ms 4 Oct 2025 19th prplz 🇦🇺 754 179 13ms 13 Jan 2024 20th jared-hughes 750 180 20ms 9 Apr 2022 21st Seek64 🇩🇪 738 183 32ms 17 Jun 2025 22nd kg583 🇺🇸 714 189 20ms 31 Jan 2024 22nd ryyyn 🇺🇸 714 189 21ms 9 hours ago 24th inventshah 711 190 20ms 12 Nov 2022 24th stefangimmillaro 711 190 28ms 8 Aug 2023 24th lifthrasiir 🇰🇷 711 190 21ms 16 Nov 2024 27th duckyluuk 🇳🇱 685 197 21ms 23 Jun 2024 28th nullie 682 198 13ms 14 Jun 2022 28th emgordon154 682 198 13ms 16 Oct 2025 30th orthoplex 🇨🇽 662 204 21ms 13 Oct 2021 31st jakobkordez 🇸🇮 659 205 20ms 30 Oct 2022 32nd annaproxy 652 207 13ms 6 May 2022 33rd StefanHabel 🇨🇦 649 208 14ms 8 Apr 2024 34th OllieBoyne 🇬🇧 640 211 13ms 19 Aug 2022 35th Artemis21 🇬🇧 637 212 19ms 3 Jan 2025 36th InigoK 🇺🇸 631 214 20ms 22 Sep 2025 37th mathisfun271 628 215 13ms 12 Feb 2024 37th anter69 🇭🇺 628 215 19ms 7 Jul 2025 39th TFeld00 🇩🇰 625 216 22ms 19 May 2022 39th andrewjc2000 625 216 31ms 15 May 2025 41st ndren 616 219 30ms 22 Nov 2023 41st neel11235813 616 219 23ms 1 Apr 2024 43rd DialFrost 🇸🇬 611 221 20ms 18 Jan 2024 43rd BREMAUCY 🇫🇷 611 221 21ms 22 Aug 2025 45th KatieLG 🇬🇧 608 222 12ms 7 Jul 2024 46th guilhem-roy 🇫🇷 595 227 16ms 3 Mar 2022 47th scpchicken 🇵🇼 590 229 21ms 13 Oct 2023 48th stu303 579 233 13ms 20 Jul 2022 49th davecame 572 236 21ms 19 Mar 2024 50th m42km 567 238 23ms 12 Nov 2023 51st CaedenHarper 🇨🇦 563 240 14ms 10 Aug 2025 52nd commandblockguy 🇺🇸 558 242 14ms 27 Sep 2023 53rd dokutan 556 243 20ms 9 Sep 2025 54th alemelis 551 245 20ms 27 Aug 2024 54th CornerMercury 🇬🇧 551 245 20ms 2 Mar 2025 56th FlorianCassayre 🇫🇷 547 247 13ms 21 Oct 2023 56th janbehrens 🇩🇪 547 247 14ms 4 Dec 2024 58th Babafaba 542 249 21ms 16 days ago 59th rucin93 🇵🇱 540 250 19ms 21 Jan 2024 60th cros107 🇦🇺 529 255 13ms 28 Jan 2024 60th RaBa21 🇭🇺 529 255 20ms 31 Jul 2025 62nd CedricGebistorf 525 257 20ms 3 Mar 2022 63rd MarcMush 🇫🇷 517 261 20ms 14 Jan 2024 63rd blaztoma 🇱🇹 517 261 19ms 20 Sep 2025 65th RYNO8 515 262 19ms 4 Sep 2023 66th CatsAreFluffy 513 263 20ms 17 Feb 2024 67th wh3n3v3r 🇨🇿 511 264 19ms 14 Nov 2024 68th SB-945 509 265 14ms 14 Mar 2024 69th mossiegoat 508 266 19ms 27 Aug 2025 70th ridingqwerty 🇺🇸 506 267 21ms 14 Feb 2024 70th te-chnical 506 267 28ms 3 May 2025 72nd albanian-laundromat 504 268 20ms 28 Jun 2025 72nd FortuiteMan 🇫🇷 504 268 20ms 7 Jul 2025 74th snoozingnewt 🇺🇸 496 272 20ms 29 Sep 2025 75th adamnielson42 🇺🇸 472 286 17ms 29 Nov 2023 1–75 of 107 Next Last