The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 3 hours. Why not try and solve them ahead of time?
π in all languages 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 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 Chars Time Submitted 159th JayXon 🇺🇸 927 157 313ms 28 Dec 2020 159th Lydxn 🇨🇦 927 157 280ms 5 Oct 2021 163rd HPWiz 🇳🇿 926 27 32ms 23 Sep 2018 163rd jslip 926 27 33ms 24 Sep 2018 163rd yzhs 🇩🇪 926 27 34ms 8 Sep 2020 163rd GrayJoKing 🇦🇺 926 27 33ms 5 Dec 2020 163rd lynn 926 27 32ms 13 Apr 2021 163rd Shanethegamer 🇺🇸 926 27 34ms 17 Apr 2021 163rd JayXon 🇺🇸 926 27 33ms 29 Jul 2021 163rd rak1507 🇬🇧 926 27 33ms 24 Oct 2021 163rd Bubbler-4 926 27 35ms 30 Nov 2021 163rd Lydxn 🇨🇦 926 27 32ms 16 Dec 2021 163rd Frowny 926 27 33ms 19 Mar 2022 163rd ovs-code 🇩🇪 926 27 33ms 14 May 2022 163rd JayXon 🇺🇸 926 27 278ms 23 May 2022 163rd Lydxn 🇨🇦 926 27 283ms 23 May 2022 163rd lynn 926 27 271ms 23 May 2022 163rd primo-ppcg 🇹🇭 926 27 282ms 24 May 2022 163rd iakolzin 926 27 283ms 2 Jun 2022 163rd sean-niemann 🇺🇸 926 27 282ms 3 Jun 2022 163rd 4hg 🇺🇸 926 27 33ms 6 Jul 2022 163rd ovs-code 🇩🇪 926 27 286ms 20 Sep 2022 163rd SirBogman 🇺🇸 926 27 274ms 22 Sep 2022 163rd scpchicken 🇵🇼 926 27 282ms 16 Dec 2022 163rd Steffan153 🇫🇮 926 27 278ms 19 Dec 2022 163rd GrayJoKing 🇦🇺 926 27 302ms 24 Jan 2023 163rd neel11235813 926 27 272ms 16 Feb 2023 163rd JRaspass 🇬🇧 926 27 272ms 1 Mar 2023 163rd andersk 🇺🇸 926 27 274ms 4 Mar 2023 163rd MeWhenI 🇻🇦 926 27 314ms 16 Apr 2023 163rd o0lit3 🇺🇸 926 27 276ms 7 Jun 2023 163rd Natanaelel 🇸🇪 926 27 32ms 17 Jul 2023 163rd inventshah 926 27 280ms 24 Sep 2023 163rd Natanaelel 🇸🇪 926 27 331ms 10 Nov 2023 163rd stackofbears 926 27 35ms 17 Dec 2023 163rd BREMAUCY 🇫🇷 926 27 285ms 17 Jan 2024 163rd fuzzylojik-golf 🇺🇸 926 27 289ms 20 Sep 2024 163rd pardouin 🇫🇷 926 27 292ms 25 Sep 2024 163rd FortuiteMan 🇫🇷 926 27 276ms 29 Sep 2024 163rd CaedenHarper 🇨🇦 926 27 288ms 13 Oct 2024 163rd emgordon154 926 27 281ms 16 Oct 2024 163rd ndren 926 27 275ms 25 Oct 2024 163rd SirBogman 🇺🇸 926 27 34ms 5 Jun 2025 163rd snoozingnewt 🇨🇦 926 27 283ms 14 Sep 2025 163rd iczelia 🇩🇪 926 27 282ms 11 Oct 2025 163rd 2bular 926 27 34ms 15 Oct 2025 163rd blaztoma 🇱🇹 926 27 346ms 25 Oct 2025 163rd Emutis 🇱🇹 926 27 292ms 25 Oct 2025 209th edsrzf 🇳🇿 926 73 628ms 17 Nov 2025 210th zacjl 926 74 27ms 18 Dec 2024 211th emplv 🇱🇻 925 63 16ms 2 Jan 2023 211th vlpx 🇫🇮 925 63 17ms 18 Jun 2024 211th rucin93 🇵🇱 925 63 17ms 14 Mar 2025 211th sean-niemann 🇺🇸 925 63 16ms 25 Mar 2025 211th Nemikolh 🇫🇷 925 63 18ms 21 Oct 2025 216th JayXon 🇺🇸 925 94 519ms 12 Mar 2022 216th ovs-code 🇩🇪 925 94 533ms 21 Jul 2024 218th sean-niemann 🇺🇸 925 109 482ms 7 Aug 2023 218th JayXon 🇺🇸 925 109 440ms 20 Mar 2025 220th zacjl 924 63 239ms 9 May 2025 220th ovs-code 🇩🇪 924 63 2,393ms 9 May 2025 222nd Steffan153 🇫🇮 924 105 695ms 11 Feb 2026 222nd sean-niemann 🇺🇸 924 105 568ms 15 Feb 2026 224th canissimia 🇦🇶 924 376 2,044ms 14 Mar 2024 225th HPWiz 🇳🇿 923 111 21ms 23 Sep 2025 226th primo-ppcg 🇹🇭 922 53 496ms 5 Apr 2025 227th sean-niemann 🇺🇸 922 93 748ms 25 Jun 2025 227th Steffan153 🇫🇮 922 93 793ms 11 Feb 2026 229th sean-niemann 🇺🇸 921 87 1,339ms 15 Jul 2025 230th KasperKivimaeki 🇫🇮 921 131 78ms 21 Nov 2025 231st HPWiz 🇳🇿 921 143 4,014ms 10 Feb 2026 232nd primo-ppcg 🇹🇭 920 149 270ms 20 Jan 2022 233rd pardouin 🇫🇷 919 75 2,919ms 30 Nov 2024 234th GrayJoKing 🇦🇺 919 148 666ms 2 Feb 2024 235th JayXon 🇺🇸 918 102 136ms 16 Oct 2022 236th DialFrost 🇸🇬 917 62 12ms 25 Sep 2023 237th JayXon 🇺🇸 917 119 231ms 1 May 2023 237th DialFrost 🇸🇬 917 119 236ms 24 Mar 2025 239th primo-ppcg 🇹🇭 917 131 73ms 23 Jun 2022 240th sean-niemann 🇺🇸 916 49 1,429ms 16 Sep 2025 First Prev 161–240 of 4,232 Next Last
