The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 days. Why not try and solve them ahead of time?
Fizz Buzz in Rust 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 1st JayXon 🇺🇸 1,000 94 142ms 31 Aug 2020 1st lynn 1,000 94 156ms 6 Oct 2021 1st Super-Pizza 🇨🇦 1,000 94 144ms 6 Oct 2021 1st Lydxn 🇨🇦 1,000 94 142ms 7 Oct 2021 1st ovs-code 🇩🇪 1,000 94 141ms 20 Jun 2023 1st kumavale 1,000 94 141ms 15 Aug 2025 1st acotis 1,000 94 155ms 20 Sep 2025 8th Steffan153 🇫🇮 959 98 140ms 14 Jan 2023 9th primo-ppcg 🇹🇭 949 99 136ms 4 Jan 2020 9th gregkatz 949 99 140ms 16 Jan 2020 9th GrayJoKing 🇦🇺 949 99 150ms 14 Jan 2021 9th andersk 🇺🇸 949 99 123ms 22 Oct 2022 9th sean-niemann 🇺🇸 949 99 128ms 14 Feb 2024 9th stefangimmillaro 949 99 127ms 1 May 2024 15th pardouin 🇫🇷 940 100 128ms 23 Oct 2024 15th DialFrost 🇸🇬 940 100 142ms 18 Mar 2025 17th frozolotl 922 102 138ms 9 Jan 2020 17th cafehaine 🇫🇷 922 102 137ms 1 May 2022 17th r-brinke 🇳🇱 922 102 138ms 9 Jul 2022 17th ludwigschlame 🇩🇪 922 102 145ms 21 Sep 2024 21st drewtato 913 103 134ms 5 Oct 2024 21st SoraTenshi 🇩🇪 913 103 159ms 29 Nov 2024 23rd btjones0 904 104 132ms 19 Jun 2022 23rd emgordon154 904 104 162ms 26 Feb 2025 25th antimon2 🇯🇵 895 105 127ms 26 Jun 2020 25th klixel 🇨🇦 895 105 148ms 21 Dec 2023 27th GinjaNinja32 887 106 148ms 16 Apr 2020 27th yzhs 🇩🇪 887 106 138ms 19 Mar 2021 29th WhoisDavid 879 107 137ms 16 Sep 2020 30th Algorhythm-sxv 870 108 128ms 6 Jan 2020 30th timvermeulen 870 108 136ms 6 Jan 2020 30th prplz 🇦🇺 870 108 139ms 7 Jul 2020 30th janbehrens 🇩🇪 870 108 133ms 6 Aug 2020 30th Juici 870 108 139ms 17 Sep 2020 30th dzshn 870 108 135ms 8 Jun 2021 30th scpchicken 🇵🇼 870 108 139ms 2 Oct 2021 30th DaCuteRaccoon 870 108 147ms 3 May 2022 30th solmyr2000 870 108 135ms 26 Jun 2022 30th MeWhenI 🇻🇦 870 108 141ms 13 Nov 2022 30th kgodara 870 108 133ms 7 Mar 2023 30th okaponta 870 108 140ms 11 Jan 2024 30th keelimeguy 🇺🇸 870 108 134ms 15 May 2025 30th snoozingnewt 🇨🇦 870 108 143ms 29 Sep 2025 30th CaedenHarper 🇨🇦 870 108 139ms 30 Nov 2025 30th BREMAUCY 🇫🇷 870 108 130ms 22 Jan 2026 46th utkarshkukreti 862 109 162ms 19 May 2022 46th madex 🇩🇪 862 109 133ms 13 Feb 2025 48th Secozzi 832 113 138ms 4 Nov 2020 48th mokymok 🇺🇸 832 113 143ms 11 Nov 2021 48th nipzu 832 113 126ms 13 Jan 2022 48th inventshah 832 113 127ms 12 Sep 2022 48th SirBogman 🇺🇸 832 113 125ms 4 Oct 2023 48th Banzobotic 832 113 125ms 7 Mar 2024 48th nullie 832 113 128ms 18 Dec 2024 48th luuumine 🇫🇷 832 113 126ms 15 Nov 2025 48th ndren 832 113 122ms 12 Jan 2026 48th vang1ong7ang 832 113 119ms 8 days ago 58th AxelMontini 825 114 144ms 5 Jan 2020 58th o0lit3 🇺🇸 825 114 142ms 28 Feb 2021 58th Indivicivet 825 114 128ms 11 Mar 2021 58th ArmaanAS 825 114 147ms 22 Mar 2021 58th AgentIvan 🇺🇦 825 114 140ms 25 Mar 2021 58th Bonjour27891 🇻🇳 825 114 147ms 11 Mar 2022 58th two-bad 🇬🇧 825 114 143ms 12 Jul 2022 58th bwenstar 825 114 139ms 11 Aug 2022 58th StHagel 825 114 141ms 25 Aug 2023 58th alomiF 825 114 128ms 28 Aug 2023 58th lyphyser 825 114 147ms 9 Oct 2023 58th byronknoll 🇺🇸 825 114 141ms 17 May 2024 58th xyangst 825 114 126ms 23 Sep 2024 58th LostSyntax21 🇬🇧 825 114 126ms 18 Nov 2024 58th yupiel 825 114 123ms 8 Jan 2025 58th dokutan 825 114 146ms 15 Jul 2025 58th raceoffer 825 114 125ms 16 Jul 2025 75th isaacg1 817 115 134ms 5 Jan 2020 75th Domicnt 817 115 129ms 14 Jun 2020 75th chordowl 817 115 123ms 17 Mar 2021 75th nkoppel 817 115 139ms 3 Nov 2022 75th Ralgun 817 115 120ms 28 Aug 2023 80th Eolu 810 116 126ms 5 Nov 2020 1–80 of 370 Next Last
