The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 3 days. Why not try and solve them ahead of time?
Pascal’s Triangle in Python 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 80th ieeemma 964 56 10ms 26 Sep 2019 80th NewDefectus 🇮🇱 964 56 9ms 15 May 2021 80th jakobkordez 🇸🇮 964 56 9ms 5 Nov 2022 80th 2011-Chan-Ethan 964 56 10ms 9 Jul 2023 80th KasperKivimaeki 🇫🇮 964 56 10ms 2 Dec 2025 86th RDShah 947 57 10ms 19 Jan 2018 86th ssilwa 947 57 11ms 19 Jan 2018 86th Constructor7 947 57 10ms 22 Feb 2018 86th Mr-Xcoder 947 57 10ms 19 Jun 2018 86th cellobix 947 57 10ms 14 Aug 2019 86th nullie 947 57 10ms 1 Apr 2020 86th prplz 🇦🇺 947 57 10ms 13 Oct 2020 86th yzhs 🇩🇪 947 57 10ms 25 Oct 2020 86th OllieBoyne 🇬🇧 947 57 10ms 30 Dec 2020 86th fynnkroeger 947 57 10ms 10 Jan 2021 86th HETHAT 🇩🇿 947 57 10ms 17 May 2021 86th jacklynnepenick 947 57 9ms 17 Aug 2021 86th jared-hughes 947 57 10ms 20 Oct 2021 86th Fishron 947 57 9ms 26 Nov 2021 86th Natanaelel 🇸🇪 947 57 11ms 15 Dec 2021 86th jmerle 🇳🇱 947 57 10ms 22 Jan 2022 86th annaproxy 947 57 10ms 1 Feb 2022 86th Mortis66666 947 57 11ms 3 Jun 2022 86th AlephSquirrel 947 57 10ms 7 Jul 2022 86th osmith93 947 57 11ms 10 Jul 2022 86th TobyBoyne 🇬🇧 947 57 10ms 12 Aug 2022 86th Eilonlif 🇮🇱 947 57 9ms 4 Sep 2022 86th 0-4849 947 57 11ms 17 Nov 2022 86th scpchicken 🇵🇼 947 57 10ms 1 Jan 2023 86th ljweel 947 57 10ms 13 Feb 2023 86th janbehrens 🇩🇪 947 57 10ms 17 Jun 2023 86th kmaork 🇮🇱 947 57 10ms 30 Jun 2023 86th 5quiwyrm 947 57 11ms 28 Jul 2023 86th yourlefthandman 947 57 10ms 17 Aug 2023 86th ZakkkkAttackkkk 🇵🇭 947 57 10ms 19 Sep 2023 86th StefanHabel 🇨🇦 947 57 10ms 20 Sep 2023 86th minhtrancccp 947 57 10ms 17 Oct 2023 86th commandz0 🇺🇸 947 57 10ms 17 Nov 2023 86th logvp 947 57 10ms 27 Dec 2023 86th stertooy 🇧🇪 947 57 11ms 16 Jun 2024 86th Bulmenisaurus 947 57 10ms 1 Jul 2024 86th wuzekai518 947 57 10ms 7 Aug 2024 86th souta-1326 947 57 11ms 24 Mar 2025 86th yujh-yujh 🇬🇸 947 57 11ms 30 Mar 2025 86th albanian-laundromat 947 57 10ms 28 Apr 2025 86th InigoK 🇺🇸 947 57 11ms 20 Sep 2025 86th SirBogman 🇺🇸 947 57 10ms 29 Sep 2025 86th Babafaba 947 57 10ms 2 Nov 2025 86th ryyyn 🇺🇸 947 57 11ms 13 Nov 2025 86th CommandLeo 🇮🇹 947 57 11ms 27 Nov 2025 86th firegene 🇮🇪 947 57 10ms 19 days ago 132nd PFischbeck 931 58 11ms 7 Feb 2018 132nd daedals 931 58 10ms 18 Apr 2019 132nd Sakaala 931 58 11ms 23 Apr 2019 132nd rak1507 🇬🇧 931 58 10ms 29 Dec 2020 132nd btjones0 931 58 10ms 1 Jan 2021 132nd LlamaLad7 🇬🇧 931 58 10ms 16 Jan 2021 132nd artieleach 931 58 11ms 7 Feb 2021 132nd 77Tigers 931 58 10ms 28 Feb 2021 132nd Indivicivet 931 58 9ms 15 Mar 2021 132nd ArmaanAS 931 58 10ms 26 Mar 2021 132nd Kloppermand 🇩🇰 931 58 10ms 26 Aug 2021 132nd RYNO8 931 58 11ms 28 Aug 2021 132nd tianshuo 931 58 10ms 13 Feb 2022 132nd CedricGebistorf 931 58 11ms 4 Mar 2022 132nd tkr-sh 🇰🇵 931 58 10ms 16 Apr 2022 132nd thisishowmymindworks 🇳🇴 931 58 10ms 25 Apr 2022 132nd Irratix 🇳🇱 931 58 10ms 25 Apr 2022 132nd ademdj19 931 58 10ms 29 Apr 2022 132nd jdw1023 931 58 10ms 29 Apr 2022 132nd programjames 931 58 12ms 7 May 2022 132nd suwat513 931 58 10ms 22 Sep 2022 132nd stefangimmillaro 931 58 12ms 6 Oct 2022 132nd nexaitch 931 58 10ms 13 Oct 2022 132nd QuincyNash 🇺🇸 931 58 10ms 9 Nov 2022 132nd fourth-bit 931 58 10ms 13 Nov 2022 132nd nayakrujul 931 58 10ms 3 Jan 2023 132nd randolchance 931 58 10ms 6 Mar 2023 132nd Just4FunCoder 931 58 11ms 23 Mar 2023 132nd ABoredNErd 931 58 10ms 24 Apr 2023 First Prev 81–160 of 697 Next Last