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?
π 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 161st zacjl 937 47 13ms 21 Jan 2025 162nd teebee 935 48 1,536ms 1 Sep 2025 162nd Steffan153 🇫🇮 935 48 1,236ms 14 days ago 164th annaproxy 935 68 18ms 5 Nov 2022 164th sean-niemann 🇺🇸 935 68 12ms 16 Feb 2023 164th bricknellj 935 68 12ms 6 Mar 2023 164th StefanHabel 🇨🇦 935 68 19ms 14 Mar 2023 164th Steffan153 🇫🇮 935 68 23ms 10 Apr 2023 164th jared-hughes 935 68 11ms 14 Sep 2023 164th bizy-coder 935 68 23ms 19 Jan 2024 164th emgordon154 935 68 12ms 12 Sep 2024 164th croc54 935 68 18ms 27 Nov 2024 164th lifthrasiir 🇰🇷 935 68 13ms 7 Dec 2024 164th rucin93 🇵🇱 935 68 12ms 14 Mar 2025 164th CaedenHarper 🇨🇦 935 68 12ms 11 Aug 2025 164th Mukundan314 935 68 12ms 19 Sep 2025 164th ryyyn 🇺🇸 935 68 1,067ms 10 Feb 2026 164th Flekay 🇩🇪 935 68 12ms 18 Feb 2026 164th snoozingnewt 🇨🇦 935 68 12ms 20 Feb 2026 164th aksyristos 935 68 13ms 3 days ago 181st Lydxn 🇨🇦 934 64 98ms 1 Aug 2023 182nd primo-ppcg 🇹🇭 934 120 185ms 17 Jan 2026 183rd Lydxn 🇨🇦 933 73 1,410ms 29 Dec 2021 184th henkma 932 70 146ms 24 Jun 2020 184th sean-niemann 🇺🇸 932 70 172ms 13 Jul 2023 184th ovs-code 🇩🇪 932 70 146ms 31 Jan 2024 187th sean-niemann 🇺🇸 931 96 1,259ms 14 Mar 2025 188th JayXon 🇺🇸 930 64 431ms 20 Jan 2024 188th pardouin 🇫🇷 930 64 456ms 28 Jun 2024 190th primo-ppcg 🇹🇭 929 104 3,142ms 6 Feb 2023 191st ovs-code 🇩🇪 928 130 4,161ms 18 Oct 2024 192nd lukegustafson 🇺🇸 927 63 168ms 18 Mar 2025 193rd nwellnhof 🇩🇪 927 158 305ms 4 Oct 2020 193rd primo-ppcg 🇹🇭 927 158 606ms 5 Oct 2020 193rd JayXon 🇺🇸 927 158 277ms 25 Jan 2021 193rd Lydxn 🇨🇦 927 158 301ms 5 Oct 2021 197th JayXon 🇺🇸 926 27 276ms 23 May 2022 197th Lydxn 🇨🇦 926 27 270ms 23 May 2022 197th lynn 926 27 274ms 23 May 2022 197th primo-ppcg 🇹🇭 926 27 266ms 24 May 2022 197th iakolzin 926 27 276ms 2 Jun 2022 197th sean-niemann 🇺🇸 926 27 271ms 3 Jun 2022 197th ovs-code 🇩🇪 926 27 280ms 20 Sep 2022 197th SirBogman 🇺🇸 926 27 276ms 22 Sep 2022 197th scpchicken 🇵🇼 926 27 279ms 16 Dec 2022 197th Steffan153 🇫🇮 926 27 280ms 19 Dec 2022 197th GrayJoKing 🇦🇺 926 27 288ms 24 Jan 2023 197th neel11235813 926 27 276ms 16 Feb 2023 197th JRaspass 🇬🇧 926 27 279ms 1 Mar 2023 197th andersk 🇺🇸 926 27 281ms 4 Mar 2023 197th MeWhenI 🇻🇦 926 27 276ms 16 Apr 2023 197th o0lit3 🇺🇸 926 27 287ms 7 Jun 2023 197th inventshah 926 27 271ms 24 Sep 2023 197th Natanaelel 🇸🇪 926 27 270ms 10 Nov 2023 197th BREMAUCY 🇫🇷 926 27 275ms 17 Jan 2024 197th fuzzylojik-golf 🇺🇸 926 27 274ms 20 Sep 2024 197th pardouin 🇫🇷 926 27 284ms 25 Sep 2024 197th FortuiteMan 🇫🇷 926 27 276ms 29 Sep 2024 197th CaedenHarper 🇨🇦 926 27 280ms 13 Oct 2024 197th emgordon154 926 27 274ms 16 Oct 2024 197th ndren 926 27 282ms 25 Oct 2024 197th snoozingnewt 🇨🇦 926 27 282ms 14 Sep 2025 197th iczelia 🇩🇪 926 27 267ms 11 Oct 2025 197th blaztoma 🇱🇹 926 27 271ms 25 Oct 2025 197th Emutis 🇱🇹 926 27 277ms 25 Oct 2025 226th zacjl 926 74 27ms 18 Dec 2024 227th primo-ppcg 🇹🇭 926 153 138ms 5 Apr 2025 228th Lydxn 🇨🇦 925 56 4,281ms 25 Oct 2023 229th emplv 🇱🇻 925 63 17ms 2 Jan 2023 229th vlpx 🇫🇮 925 63 17ms 18 Jun 2024 229th rucin93 🇵🇱 925 63 17ms 14 Mar 2025 229th sean-niemann 🇺🇸 925 63 16ms 25 Mar 2025 229th Nemikolh 🇫🇷 925 63 20ms 21 Oct 2025 234th JayXon 🇺🇸 925 94 519ms 12 Mar 2022 234th ovs-code 🇩🇪 925 94 533ms 21 Jul 2024 236th sean-niemann 🇺🇸 925 111 495ms 7 Aug 2023 236th JayXon 🇺🇸 925 111 471ms 20 Mar 2025 238th Raclamusi 924 29 33ms 25 Jan 2022 239th zacjl 924 63 239ms 9 May 2025 239th ovs-code 🇩🇪 924 63 2,393ms 9 May 2025 First Prev 161–240 of 4,280 Next Last
