QR Decoder 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 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 Chars Time Submitted 1st JayXon 🇺🇸 1,000 93 21ms 6 May 2023 2nd nwellnhof 🇩🇪 979 95 32ms 24 Jan 2022 3rd btnlq 959 97 10ms 19 Sep 2021 4th Lydxn 🇨🇦 939 99 15ms 18 Sep 2021 5th pardouin 🇫🇷 921 101 24ms 12 Jul 2024 6th hallvabo 🇳🇴 886 105 25ms 31 Dec 2023 6th Steffan153 🇫🇮 886 105 17ms 8 days ago 8th GolfingSuccess 🇬🇷 869 107 16ms 18 Sep 2021 9th SirBogman 🇺🇸 861 108 27ms 31 Jan 2024 9th sean-niemann 🇺🇸 861 108 17ms 9 Mar 2025 11th Irratix 🇳🇱 830 112 20ms 7 May 2022 11th plcc0 830 112 16ms 9 days ago 13th kg583 🇺🇸 823 113 16ms 22 Oct 2023 13th lifthrasiir 🇰🇷 823 113 24ms 16 Nov 2024 15th duckyluuk 🇳🇱 802 116 18ms 29 Aug 2024 16th CornerMercury 🇬🇧 769 121 16ms 1 Dec 2025 17th emgordon154 756 123 16ms 12 Apr 2025 18th neel11235813 750 124 19ms 5 Nov 2023 19th snoozingnewt 🇨🇦 744 125 17ms 6 Dec 2025 20th orthoplex 🇨🇽 732 127 17ms 26 Oct 2021 20th ndren 732 127 25ms 22 Nov 2023 22nd annaproxy 721 129 10ms 8 Jun 2022 23rd Artemis21 🇬🇧 710 131 17ms 10 Jan 2025 24th MeWhenI 🇻🇦 705 132 10ms 22 Oct 2021 25th TFeld00 🇩🇰 699 133 16ms 19 May 2022 25th anter69 🇭🇺 699 133 16ms 7 Jul 2025 27th DialFrost 🇸🇬 684 136 17ms 23 Feb 2024 27th KatieLG 🇬🇧 684 136 10ms 14 Sep 2024 27th Flekay 🇩🇪 684 136 11ms 13 days ago 30th ovs-code 🇩🇪 650 143 10ms 6 Jul 2025 31st dokutan 633 147 18ms 10 Sep 2025 32nd rucin93 🇵🇱 620 150 18ms 31 May 2025 32nd Babafaba 620 150 17ms 29 Oct 2025 34th qpwoeirut 612 152 16ms 5 Oct 2025 35th RaBa21 🇭🇺 608 153 17ms 31 Jul 2025 36th wh3n3v3r 🇨🇿 592 157 16ms 14 Nov 2024 36th blaztoma 🇱🇹 592 157 15ms 28 Dec 2025 38th SB-945 589 158 9ms 14 Mar 2024 38th robin-scragg 589 158 17ms 27 Aug 2025 40th albanian-laundromat 581 160 17ms 27 Jun 2025 40th Lv0Sys 🇵🇱 581 160 10ms 24 hours ago 42nd ryyyn 🇺🇸 571 163 16ms 9 Dec 2025 43rd 5cw 🇺🇸 567 164 10ms 8 May 2024 44th FlorianCassayre 🇫🇷 564 165 10ms 21 Oct 2023 44th JOrE20 564 165 10ms 4 Dec 2025 46th AlephSquirrel 560 166 14ms 10 Jun 2023 46th bricknellj 560 166 16ms 3 Apr 2025 48th lynn 557 167 10ms 13 Feb 2023 49th Seek64 🇩🇪 547 170 10ms 27 Nov 2025 50th edsrzf 🇳🇿 544 171 24ms 16 Dec 2025 51st prplz 🇦🇺 520 179 10ms 13 Jan 2024 52nd jared-hughes 517 180 16ms 9 Apr 2022 53rd inventshah 489 190 17ms 12 Nov 2022 53rd stefangimmillaro 489 190 24ms 8 Aug 2023 55th yzhs 🇩🇪 482 193 10ms 4 Jun 2022 56th yuchuehw 479 194 16ms 6 Jan 2024 57th nullie 470 198 10ms 14 Jun 2022 58th jakobkordez 🇸🇮 454 205 17ms 30 Oct 2022 59th CatsAreFluffy 449 207 17ms 17 Feb 2024 60th StefanHabel 🇨🇦 447 208 10ms 8 Apr 2024 61st OllieBoyne 🇬🇧 441 211 10ms 19 Aug 2022 62nd InigoK 🇺🇸 435 214 18ms 22 Sep 2025 63rd mathisfun271 433 215 10ms 12 Feb 2024 64th andrewjc2000 431 216 28ms 15 May 2025 65th BREMAUCY 🇫🇷 421 221 17ms 22 Aug 2025 66th guilhem-roy 🇫🇷 410 227 10ms 3 Mar 2022 67th scpchicken 🇵🇼 406 229 17ms 13 Oct 2023 68th stu303 399 233 9ms 20 Jul 2022 69th davecame 394 236 17ms 19 Mar 2024 70th m42km 391 238 19ms 12 Nov 2023 71st CaedenHarper 🇨🇦 388 240 10ms 10 Aug 2025 72nd commandz0 🇺🇸 384 242 10ms 27 Sep 2023 73rd alemelis 380 245 16ms 27 Aug 2024 73rd AstroOrbis 380 245 18ms 6 days ago 75th janbehrens 🇩🇪 377 247 10ms 4 Dec 2024 76th cros107 🇦🇺 365 255 10ms 28 Jan 2024 77th CedricGebistorf 362 257 16ms 3 Mar 2022 78th te-chnical 358 260 23ms 18 Nov 2025 79th MarcMush 🇫🇷 356 261 16ms 14 Jan 2024 80th RYNO8 355 262 17ms 4 Sep 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