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 Gray Code Decoder Gray Code Encoder 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 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 Gray Code Decoder Gray Code Encoder 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 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 1st JayXon 🇺🇸 1,000 93 24ms 6 May 2023 2nd nwellnhof 🇩🇪 979 95 32ms 24 Jan 2022 3rd btnlq 959 97 11ms 19 Sep 2021 4th Lydxn 🇨🇦 939 99 15ms 18 Sep 2021 5th pardouin 🇫🇷 921 101 27ms 12 Jul 2024 6th hallvabo 🇳🇴 886 105 26ms 31 Dec 2023 6th Steffan153 🇫🇮 886 105 21ms 21 Feb 2026 8th GolfingSuccess 🇬🇷 869 107 18ms 18 Sep 2021 9th SirBogman 🇺🇸 861 108 25ms 31 Jan 2024 9th sean-niemann 🇺🇸 861 108 18ms 9 Mar 2025 11th Irratix 🇳🇱 830 112 21ms 7 May 2022 11th plcc0 830 112 17ms 20 Feb 2026 13th kg583 🇺🇸 823 113 17ms 22 Oct 2023 13th lifthrasiir 🇰🇷 823 113 25ms 16 Nov 2024 15th duckyluuk 🇳🇱 802 116 20ms 29 Aug 2024 16th CornerMercury 🇬🇧 769 121 18ms 1 Dec 2025 17th emgordon154 756 123 17ms 12 Apr 2025 17th snoozingnewt 🇨🇦 756 123 20ms 2 days ago 19th neel11235813 750 124 22ms 5 Nov 2023 20th orthoplex 🇨🇽 732 127 18ms 26 Oct 2021 20th ndren 732 127 27ms 22 Nov 2023 22nd annaproxy 721 129 11ms 8 Jun 2022 23rd Artemis21 🇬🇧 710 131 17ms 10 Jan 2025 24th MeWhenI 🇻🇦 705 132 11ms 22 Oct 2021 25th TFeld00 🇩🇰 699 133 17ms 19 May 2022 25th anter69 🇭🇺 699 133 19ms 7 Jul 2025 27th DialFrost 🇸🇬 684 136 19ms 23 Feb 2024 27th KatieLG 🇬🇧 684 136 10ms 14 Sep 2024 27th Flekay 🇩🇪 684 136 11ms 15 Feb 2026 27th jusaka 684 136 11ms 7 days ago 31st ovs-code 🇩🇪 650 143 9ms 6 Jul 2025 32nd dokutan 633 147 20ms 10 Sep 2025 33rd rucin93 🇵🇱 620 150 19ms 31 May 2025 33rd Babafaba 620 150 18ms 29 Oct 2025 35th qpwoeirut 612 152 19ms 5 Oct 2025 36th RaBa21 🇭🇺 608 153 17ms 31 Jul 2025 37th wh3n3v3r 🇨🇿 592 157 20ms 14 Nov 2024 37th blaztoma 🇱🇹 592 157 16ms 28 Dec 2025 39th SB-945 589 158 11ms 14 Mar 2024 39th robin-scragg 589 158 18ms 27 Aug 2025 41st albanian-laundromat 🇺🇸 581 160 20ms 27 Jun 2025 41st Lv0Sys 🇵🇱 581 160 11ms 28 Feb 2026 43rd ryyyn 🇺🇸 571 163 19ms 9 Dec 2025 44th 5cw 🇺🇸 567 164 10ms 8 May 2024 45th FlorianCassayre 🇫🇷 564 165 10ms 21 Oct 2023 45th JOrE20 564 165 13ms 4 Dec 2025 47th AlephSquirrel 560 166 13ms 10 Jun 2023 47th bricknellj 560 166 18ms 3 Apr 2025 49th lynn 557 167 10ms 13 Feb 2023 50th Seek64 🇩🇪 547 170 13ms 27 Nov 2025 51st edsrzf 🇳🇿 544 171 27ms 16 Dec 2025 52nd prplz 🇦🇺 520 179 10ms 13 Jan 2024 53rd jared-hughes 517 180 17ms 9 Apr 2022 54th inventshah 489 190 17ms 12 Nov 2022 54th stefangimmillaro 489 190 27ms 8 Aug 2023 56th yzhs 🇩🇪 482 193 10ms 4 Jun 2022 57th yuchuehw 479 194 18ms 6 Jan 2024 58th nullie 470 198 10ms 14 Jun 2022 59th jakobkordez 🇸🇮 454 205 18ms 30 Oct 2022 60th CatsAreFluffy 449 207 18ms 17 Feb 2024 60th StefanHabel 🇨🇦 449 207 11ms 9 Mar 2026 62nd scpchicken 🇵🇼 443 210 19ms 20 hours ago 63rd OllieBoyne 🇬🇧 441 211 10ms 19 Aug 2022 64th InigoK 🇺🇸 435 214 18ms 22 Sep 2025 65th mathisfun271 433 215 10ms 12 Feb 2024 66th andrewjc2000 431 216 29ms 15 May 2025 67th BREMAUCY 🇫🇷 421 221 19ms 22 Aug 2025 68th guilhem-roy 🇫🇷 410 227 10ms 3 Mar 2022 69th stu303 399 233 11ms 20 Jul 2022 70th davecame 394 236 18ms 19 Mar 2024 71st m42km 391 238 19ms 12 Nov 2023 71st firegene 🇮🇪 391 238 18ms 10 days ago 73rd CaedenHarper 🇨🇦 388 240 11ms 10 Aug 2025 74th commandz0 🇺🇸 384 242 10ms 27 Sep 2023 75th alemelis 380 245 18ms 27 Aug 2024 75th AstroOrbis 380 245 20ms 22 Feb 2026 77th janbehrens 🇩🇪 377 247 11ms 4 Dec 2024 78th aksyristos 371 251 20ms 14 days ago 79th cros107 🇦🇺 365 255 11ms 28 Jan 2024 80th CedricGebistorf 362 257 18ms 3 Mar 2022 1–80 of 117 Next Last