The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 2 days. Why not try and solve them ahead of time?
Pangram Grep in all languages in bytes. 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 Alphabetic Numbers 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 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 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 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 800th mrondon8 835 45 40ms 12 Sep 2021 800th acornellier 835 45 37ms 1 Dec 2021 800th Haksell 🇦🇶 835 45 37ms 22 Feb 2023 804th rucin93 🇵🇱 835 70 153ms 31 Oct 2024 804th voytxt 🇨🇿 835 70 145ms 17 Apr 2025 806th tomh1012 835 84 20ms 2 Nov 2020 806th stordev 835 84 10ms 26 Feb 2021 806th face0xff 835 84 11ms 19 Oct 2021 806th EstuardoDelAngel 835 84 11ms 25 Mar 2022 806th Estuardicue 835 84 11ms 25 Mar 2022 806th ellis-rix 835 84 11ms 19 May 2023 806th ssbhatt4321 835 84 11ms 14 Oct 2023 806th 1337Nerd 835 84 12ms 20 Oct 2023 806th Bmrl7 835 84 10ms 26 Feb 2024 806th smokestacklightnin 🇺🇸 835 84 12ms 9 Jun 2024 806th jfallon1997 835 84 12ms 24 Jun 2024 806th imelxr 🇮🇱 835 84 11ms 2 Oct 2024 806th gallium-gonzollium 835 84 11ms 4 Nov 2024 806th LostSyntax21 🇬🇧 835 84 11ms 5 Jul 2025 806th RaBa21 🇭🇺 835 84 11ms 19 Jul 2025 806th FEZfan 🇦🇺 835 84 11ms 15 Oct 2025 822nd duckyluuk 🇳🇱 834 71 8ms 3 Jan 2025 823rd dokutan 834 98 2ms 22 Apr 2024 823rd GrayJoKing 🇦🇺 834 98 2ms 23 Dec 2025 825th MeWhenI 🇻🇦 834 123 26ms 13 Jul 2021 826th lifthrasiir 🇰🇷 833 24 44ms 2 Dec 2024 826th plcc0 833 24 48ms 30 Jan 2026 828th anastos 833 118 138ms 23 Jul 2018 828th user189032 833 118 126ms 29 May 2019 828th boxjelly 833 118 140ms 7 Jan 2021 828th Natanaelel 🇸🇪 833 118 130ms 30 Sep 2021 828th annaproxy 833 118 145ms 15 Nov 2021 828th tobeannouncd 833 118 121ms 3 Jan 2024 834th MeWhenI 🇻🇦 832 89 6ms 13 Dec 2023 835th KasperKivimaeki 🇫🇮 832 142 300ms 25 Sep 2025 836th MeWhenI 🇻🇦 831 94 93ms 8 Mar 2023 837th Steffan153 🇫🇮 831 122 28ms 9 Jun 2024 838th MeWhenI 🇻🇦 831 170 53ms 30 Jun 2022 839th Steffan153 🇫🇮 829 86 6ms 42 hours ago 840th nwellnhof 🇩🇪 827 37 5ms 29 Oct 2021 840th Natanaelel 🇸🇪 827 37 6ms 29 Oct 2021 840th Steffan153 🇫🇮 827 37 5ms 26 Mar 2023 843rd GrayJoKing 🇦🇺 826 110 6ms 11 Sep 2022 844th abailey2020 🇺🇸 826 119 135ms 19 Aug 2020 844th CLOStrophobic 🇮🇹 826 119 128ms 28 May 2025 846th KevinMarquette 🇺🇸 825 43 301ms 5 Jun 2020 846th bstrautin 825 43 261ms 11 Jun 2020 846th dcgjb 825 43 410ms 21 Feb 2024 846th GolfingSuccess 🇬🇷 825 43 309ms 7 Feb 2026 850th CRHillman 825 85 11ms 16 Aug 2018 850th PeteAndersen 825 85 11ms 7 Jun 2019 850th TheYMI 825 85 11ms 14 Jul 2019 850th dyc3 825 85 17ms 9 Jul 2020 850th bastienvoirin 🇫🇷 825 85 11ms 28 Nov 2020 850th fynnkroeger 825 85 10ms 13 Jan 2021 850th galloj 🇨🇿 825 85 11ms 29 Jan 2021 850th schachmattmatt 825 85 11ms 11 Aug 2021 850th mauro-1 🇮🇹 825 85 13ms 18 Aug 2021 850th LeeCamp 825 85 10ms 30 Jan 2022 850th jhu04 825 85 11ms 10 Jul 2022 850th PatrickStephansen 🇿🇦 825 85 13ms 25 Aug 2022 850th JeromeSchweitzer 825 85 10ms 15 Oct 2022 850th anderium 825 85 11ms 5 Aug 2023 850th Mikey-Beep 🇬🇧 825 85 11ms 24 Aug 2023 850th AZ9tumas 825 85 11ms 19 Oct 2023 850th chartung17 825 85 11ms 1 Jan 2024 850th Europe2048 825 85 10ms 25 Nov 2024 850th TheZwierzLF 🇵🇱 825 85 10ms 22 Nov 2025 850th KatieLG-Transpiler 🇬🇧 825 85 11ms 9 Jan 2026 850th denkyuu1 825 85 10ms 5 days ago 871st heanyang1 825 98 1,405ms 4 Jul 2025 872nd namelessiw 824 84 400ms 18 Jul 2025 873rd kg583 🇺🇸 823 90 7ms 2 Jan 2026 873rd DialFrost 🇸🇬 823 90 8ms 3 Jan 2026 875th frankgraziano 821 117 13ms 24 Feb 2026 876th SirBogman 🇺🇸 820 67 116ms 25 Sep 2023 876th gdagstn 820 67 89ms 21 Aug 2024 878th Steffan153 🇫🇮 820 84 151ms 3 Dec 2022 879th Steffan153 🇫🇮 820 88 14ms 2 Oct 2022 880th lifthrasiir 🇰🇷 820 204 12ms 13 Dec 2024 First Prev 801–880 of 2,705 Next Last