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 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time 226th KatieLG 🇬🇧 616 136 28 Oct 2024 227th MeWhenI 🇻🇦 616 176 4 Sep 2024 228th AlephSquirrel 615 247 27 Jan 2025 229th dokutan 613 147 10 Sep 2025 230th stefangimmillaro 613 159 20 Oct 2023 231st annaproxy 609 309 4 Sep 2022 232nd emgordon154 607 162 7 Aug 2024 233rd postie77 604 193 24 Mar 2023 234th stefangimmillaro 602 195 12 Nov 2024 235th rucin93 🇵🇱 601 150 31 May 2025 236th jared-hughes 599 164 9 Apr 2022 237th bac0id 598 208 25 Jun 2024 238th MeWhenI 🇻🇦 596 147 28 Feb 2024 239th qpwoeirut 593 152 13 days ago 240th MeWhenI 🇻🇦 590 191 28 Feb 2024 241st Steffan153 🇫🇮 589 124 31 Jul 2024 242nd RaBa21 🇭🇺 589 153 31 Jul 2025 243rd NewDefectus 🇮🇱 589 167 21 Sep 2021 244th DialFrost 🇸🇬 581 201 18 Jan 2024 245th scpchicken 🇵🇼 581 324 17 Mar 2023 246th MeWhenI 🇻🇦 579 272 14 Jun 2023 247th KatieLG 🇬🇧 578 170 13 days ago 248th wh3n3v3r 🇨🇿 574 157 14 Nov 2024 249th bac0id 574 185 25 Jun 2024 250th lynn 573 96 3 Apr 2023 251st MeWhenI 🇻🇦 573 138 28 Feb 2024 252nd SB-945 571 158 14 Mar 2024 252nd mossiegoat 571 158 27 Aug 2025 254th dokutan 570 147 10 Sep 2025 255th lynn 569 303 31 Mar 2022 255th andersk 🇺🇸 569 303 1 Nov 2022 257th Steffan153 🇫🇮 566 148 31 Jul 2024 258th albanian-laundromat 563 160 27 Jun 2025 259th jared-hughes 560 135 25 May 2022 260th bac0id 560 208 25 Jun 2024 261st primo-ppcg 🇹🇭 557 131 28 Sep 2021 261st olleicua 🇺🇸 557 131 20 Feb 2025 263rd 5cw 🇺🇸 550 164 8 May 2024 264th snoozingnewt 🇺🇸 546 165 23 Sep 2023 264th FlorianCassayre 🇫🇷 546 165 21 Oct 2023 266th MeWhenI 🇻🇦 545 148 28 Feb 2024 267th AlephSquirrel 543 166 10 Jun 2023 267th bricknellj 543 166 3 Apr 2025 269th lynn 540 167 13 Feb 2023 270th KrausRaus 🇺🇸 540 182 30 Jun 2024 271st DialFrost 🇸🇬 538 221 29 Jan 2024 272nd tayloia 🇬🇧 537 183 4 May 2023 273rd ovs-code 🇩🇪 534 151 10 Mar 2024 274th lynn 531 158 17 Feb 2024 274th AlephSquirrel 531 158 12 Jan 2025 276th emgordon154 531 161 18 Oct 2024 277th MichalMarsalek 🇨🇿 529 266 12 Oct 2023 278th Salutations45 526 187 3 days ago 279th emplv 🇱🇻 524 163 28 Mar 2025 280th bac0id 524 275 25 Jun 2024 281st snoozingnewt 🇺🇸 521 161 20 days ago 282nd retrohun 518 259 23 Nov 2022 283rd Natanaelel 🇸🇪 518 363 16 Jun 2025 284th Natanaelel 🇸🇪 514 142 18 Sep 2021 285th bac0id 512 257 25 Jun 2024 286th jared-hughes 510 143 10 Sep 2022 287th edsrzf 🇳🇿 506 178 14 days ago 288th prplz 🇦🇺 504 179 13 Jan 2024 289th jared-hughes 501 180 9 Apr 2022 290th jerrandolph 499 306 23 days ago 291st stefangimmillaro 497 147 12 May 2024 292nd MeWhenI 🇻🇦 497 172 5 Jan 2025 293rd Seek64 🇩🇪 493 183 17 Jun 2025 294th snoozingnewt 🇺🇸 491 284 14 Oct 2023 295th janbehrens 🇩🇪 490 238 4 Dec 2024 296th inventshah 474 190 12 Nov 2022 296th stefangimmillaro 474 190 8 Aug 2023 298th p-vf 🇨🇭 474 246 21 Nov 2021 299th janbehrens 🇩🇪 469 286 13 Sep 2022 300th yzhs 🇩🇪 467 193 4 Jun 2022 First Prev 226–300 of 437 Next Last