QR Decoder in all languages in chars. 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 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 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 United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle 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 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 Groovy Harbour Hare Haxe Hush Hy iogii 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 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 Groovy Harbour Hare Haxe Hush Hy iogii 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 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 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 United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 226th stefangimmillaro 602 195 12 Nov 2024 227th MeWhenI 🇻🇦 601 147 28 Feb 2024 228th rucin93 🇵🇱 601 150 31 May 2025 229th jared-hughes 599 164 9 Apr 2022 230th bac0id 598 208 25 Jun 2024 231st MeWhenI 🇻🇦 590 191 28 Feb 2024 232nd RaBa21 🇭🇺 589 153 3 days ago 233rd Steffan153 🇫🇮 588 124 31 Jul 2024 234th NewDefectus 🇮🇱 588 167 21 Sep 2021 235th DialFrost 🇸🇬 581 201 18 Jan 2024 236th scpchicken 🇵🇼 581 324 17 Mar 2023 237th MeWhenI 🇻🇦 579 272 14 Jun 2023 238th wh3n3v3r 🇨🇿 574 157 14 Nov 2024 239th bac0id 574 185 25 Jun 2024 240th edsrzf 🇳🇿 574 265 22 Jun 2025 241st lynn 573 96 3 Apr 2023 242nd MeWhenI 🇻🇦 573 138 28 Feb 2024 243rd SB-945 570 158 14 Mar 2024 244th lynn 569 303 31 Mar 2022 244th andersk 🇺🇸 569 303 1 Nov 2022 246th Steffan153 🇫🇮 566 148 31 Jul 2024 246th dokutan 566 148 20 Apr 2025 248th albanian-laundromat 563 160 27 Jun 2025 249th jared-hughes 560 135 25 May 2022 250th bac0id 559 208 25 Jun 2024 251st primo-ppcg 🇹🇭 557 131 28 Sep 2021 251st olleicua 🇺🇸 557 131 20 Feb 2025 253rd 5cw 🇺🇸 549 164 8 May 2024 254th snoozingnewt 🇺🇸 546 165 23 Sep 2023 254th FlorianCassayre 🇫🇷 546 165 21 Oct 2023 256th MeWhenI 🇻🇦 545 148 28 Feb 2024 257th AlephSquirrel 543 166 10 Jun 2023 257th bricknellj 543 166 3 Apr 2025 259th lynn 540 167 13 Feb 2023 260th KrausRaus 🇺🇸 539 182 30 Jun 2024 261st DialFrost 🇸🇬 538 221 29 Jan 2024 262nd tayloia 🇬🇧 536 183 4 May 2023 263rd ovs-code 🇩🇪 534 151 10 Mar 2024 264th lynn 531 158 17 Feb 2024 264th AlephSquirrel 531 158 12 Jan 2025 266th emgordon154 531 161 18 Oct 2024 267th MichalMarsalek 🇨🇿 529 266 12 Oct 2023 268th emplv 🇱🇻 524 163 28 Mar 2025 269th bac0id 524 275 25 Jun 2024 270th janbehrens 🇩🇪 520 301 4 Dec 2024 271st retrohun 518 259 23 Nov 2022 272nd Natanaelel 🇸🇪 518 363 16 Jun 2025 273rd Natanaelel 🇸🇪 514 142 18 Sep 2021 274th jared-hughes 510 143 10 Sep 2022 275th prplz 🇦🇺 503 179 13 Jan 2024 276th jared-hughes 501 180 9 Apr 2022 277th MeWhenI 🇻🇦 497 172 5 Jan 2025 278th stefangimmillaro 496 147 12 May 2024 279th Seek64 🇩🇪 492 183 17 Jun 2025 280th snoozingnewt 🇺🇸 491 284 14 Oct 2023 281st janbehrens 🇩🇪 490 238 4 Dec 2024 282nd inventshah 474 190 12 Nov 2022 282nd stefangimmillaro 474 190 8 Aug 2023 284th p-vf 🇨🇭 473 246 21 Nov 2021 285th janbehrens 🇩🇪 469 286 13 Sep 2022 286th yzhs 🇩🇪 467 193 4 Jun 2022 287th MeWhenI 🇻🇦 466 256 28 Feb 2024 288th MeWhenI 🇻🇦 465 268 4 Mar 2022 289th yuchuehw 464 194 6 Jan 2024 290th janbehrens 🇩🇪 458 254 4 Dec 2024 291st nullie 455 198 14 Jun 2022 292nd janbehrens 🇩🇪 450 218 4 Dec 2024 293rd elgan65536 446 387 10 Apr 2024 294th jakobkordez 🇸🇮 440 205 30 Oct 2022 295th rucin93 🇵🇱 436 196 5 Jan 2025 296th CatsAreFluffy 435 207 17 Feb 2024 297th MeWhenI 🇻🇦 434 480 18 Mar 2024 298th Natanaelel 🇸🇪 434 737 19 Feb 2024 299th StefanHabel 🇨🇦 433 208 8 Apr 2024 300th OllieBoyne 🇬🇧 427 211 19 Aug 2022 Prev 226–300 of 420 Next