The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 7 days. Why not try and solve them ahead of time?
ASCII Table 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 881st alexjurkiewicz 🇦🇺 710 121 11ms 14 Jul 2022 881st andre-lameirinhas 🇵🇹 710 121 10ms 28 Jul 2022 881st PunnyBunny 710 121 9ms 24 Aug 2022 881st kejcao 🇨🇦 710 121 9ms 11 May 2024 881st CutSandstone 710 121 10ms 8 Jul 2024 881st AnAwesomGuy 710 121 9ms 21 Dec 2025 887th denkyuu1 709 118 501ms 2 hours ago 888th prplz 🇦🇺 709 145 1ms 27 Mar 2022 888th jgbaldwinbrown 709 145 2ms 28 Jun 2022 888th Us1ngTh3Hub 709 145 1ms 21 Jun 2023 888th aevykt 709 145 2ms 29 Oct 2023 892nd MeWhenI 🇻🇦 709 154 160ms 5 Jan 2025 893rd SwordF-Official 🇺🇸 709 165 2ms 17 Jun 2025 894th AnnoyedArt1256 708 164 10ms 10 Aug 2022 894th FrederikHutfless 🇩🇪 708 164 10ms 12 Jan 2023 894th junkondo-jp 708 164 9ms 12 May 2024 894th lafkpages 708 164 9ms 26 Oct 2024 898th kkoenig 707 170 435ms 20 Dec 2023 898th dcgjb 707 170 448ms 30 Apr 2025 898th snoozingnewt 🇨🇦 707 170 445ms 1 Nov 2025 898th emgordon154 707 170 65ms 7 Feb 2026 902nd gifti258 706 150 70ms 13 Sep 2023 903rd jerrandolph 706 204 318ms 20 Oct 2023 904th emgordon154 706 238 1,716ms 18 Dec 2025 905th TheZwierzLF 🇵🇱 705 118 547ms 22 Nov 2025 906th jbbarth 🇫🇷 704 107 33ms 3 May 2022 906th Natanaelel 🇸🇪 704 107 35ms 2 Nov 2023 906th olleicua 🇺🇸 704 107 34ms 15 Feb 2024 909th Anonymousellama21 704 122 11ms 28 Mar 2022 909th feherd 704 122 10ms 16 Apr 2022 909th AGoyet 704 122 10ms 15 Jul 2022 909th PaulMWeiser 704 122 11ms 26 Feb 2023 909th codewrite 🇬🇧 704 122 10ms 3 May 2025 909th TheZwierzLF 🇵🇱 704 122 10ms 19 May 2025 909th dirckvdende 704 122 16ms 6 Jul 2025 909th H3XDaemon 704 122 10ms 19 Aug 2025 909th robbertvz 704 122 17ms 29 Dec 2025 909th denkyuu1 704 122 10ms 2 hours ago 919th funnyboy-roks 704 146 1ms 15 Jun 2024 920th prestosilver 🇺🇸 704 158 297ms 22 days ago 921st Heathcorp 🇦🇺 703 165 9ms 21 Aug 2022 921st FortuiteMan 🇫🇷 703 165 9ms 10 Oct 2024 921st LvLError 703 165 8ms 29 May 2025 924th CarraUjilen 702 107 251ms 1 Aug 2022 924th Arnaud-beep 🇫🇷 702 107 247ms 4 Aug 2022 926th weeble 702 127 4ms 18 Aug 2024 927th snoozingnewt 🇨🇦 700 194 105ms 1 Nov 2025 928th warmCabin 699 147 1ms 8 Apr 2022 928th CaedenHarper 🇨🇦 699 147 1ms 19 Jan 2025 930th yishayv 699 172 55ms 22 Jan 2023 931st harshit54 699 206 281ms 3 Oct 2023 932nd AshyIsMe 🇦🇺 698 108 34ms 11 Aug 2022 933rd Indivicivet 698 123 10ms 9 May 2022 933rd qpwoeirut 698 123 9ms 1 Oct 2025 933rd luuumine 🇫🇷 698 123 16ms 26 Oct 2025 936th snoozingnewt 🇨🇦 698 164 113ms 2 Nov 2025 937th MWI-polygolf 695 160 123ms 29 Dec 2023 938th tupto 695 167 8ms 12 Jun 2023 938th LukeBridges 🇬🇧 695 167 10ms 23 Jan 2025 940th timhaj 🇸🇮 695 173 434ms 2 Aug 2024 941st lifthrasiir 🇰🇷 694 99 2ms 28 Nov 2024 942nd Zxnii 694 148 1ms 24 May 2023 943rd pascscha 692 124 16ms 28 Mar 2022 943rd stefangimmillaro 692 124 9ms 21 Aug 2022 943rd yzhs 🇩🇪 692 124 10ms 23 Jun 2023 943rd tayacrystals 692 124 10ms 18 Nov 2023 943rd nstearns96 🇬🇧 692 124 10ms 28 Jun 2024 948th dokutan 692 147 164ms 5 Aug 2024 949th MWI-polygolf 692 169 1ms 6 Dec 2023 950th Waffle3z 691 109 35ms 27 Mar 2022 951st eranws 691 168 9ms 24 Oct 2022 951st unfinishedprogram 691 168 9ms 29 Jun 2023 951st MWI-polygolf 691 168 9ms 6 Dec 2023 951st non-bin 691 168 9ms 27 Jun 2025 955th kallmi28 🇨🇿 690 149 2ms 2 Oct 2023 955th MistMech 690 149 2ms 29 Oct 2023 957th CaedenHarper 🇨🇦 690 177 401ms 21 Oct 2025 958th sultan 689 109 259ms 24 May 2022 958th TaserTheFox 🇺🇸 689 109 238ms 6 Jun 2023 960th snoozingnewt 🇨🇦 688 170 1ms 2 Nov 2025 First Prev 881–960 of 2,332 Next Last
