The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 days. Why not try and solve them ahead of time?
Pascal’s Triangle 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 794th vhoulbreque 🇫🇷 836 63 10ms 17 Aug 2022 794th LogicalJoe 836 63 11ms 30 Sep 2022 794th Mikey-Beep 🇬🇧 836 63 11ms 4 Oct 2022 794th TaserTheFox 🇺🇸 836 63 11ms 16 May 2023 794th Vaekor 836 63 12ms 10 Jul 2023 794th Stockoh 🇫🇷 836 63 11ms 26 Apr 2024 794th zlliu246 836 63 10ms 3 Oct 2024 794th roguh 🇬🇹 836 63 10ms 10 Jun 2025 794th setop 836 63 10ms 6 Oct 2025 794th Andrey2001 836 63 10ms 9 Dec 2025 794th JOrE20 836 63 10ms 27 days ago 812th janbehrens 🇩🇪 835 58 4ms 30 May 2021 813th jared-hughes 835 95 71ms 2 Nov 2022 814th Yewzir 🇧🇪 835 120 289ms 28 Mar 2024 815th AlexDaniel 🇪🇪 834 30 111ms 30 Nov 2017 816th primo-ppcg 🇹🇭 834 45 261ms 9 Jun 2020 816th prplz 🇦🇺 834 45 243ms 9 Jul 2021 818th proton 🇩🇪 834 49 35ms 8 Jun 2020 818th Secozzi 834 49 34ms 3 Nov 2020 818th Natanaelel 🇸🇪 834 49 38ms 13 Oct 2021 821st edsrzf 🇳🇿 834 50 4ms 24 Dec 2025 822nd DialFrost 🇸🇬 834 68 39ms 25 Apr 2025 822nd stefangimmillaro 834 68 39ms 26 Apr 2025 822nd MeWhenI 🇻🇦 834 68 39ms 29 Apr 2025 822nd primo-ppcg 🇹🇭 834 68 37ms 29 Apr 2025 826th JayXon 🇺🇸 834 73 71ms 22 Mar 2023 826th Lydxn 🇨🇦 834 73 83ms 22 Mar 2023 828th m-tkach 🇺🇦 834 96 30ms 18 Jan 2024 829th MeWhenI 🇻🇦 833 18 2ms 19 Jan 2022 829th ashtraypettingzoo 🇺🇸 833 18 2ms 24 Feb 2023 829th lifthrasiir 🇰🇷 833 18 2ms 1 Dec 2024 832nd Shanethegamer 🇺🇸 833 59 1,266ms 11 Mar 2023 832nd anter69 🇭🇺 833 59 1,321ms 11 Jul 2025 834th lynn 833 71 10ms 17 Nov 2021 834th Shanethegamer 🇺🇸 833 71 156ms 2 Feb 2022 836th dokutan 832 59 1,016ms 22 Sep 2025 837th tayloia 🇬🇧 832 60 11ms 21 Dec 2017 837th p01 832 60 10ms 3 Jan 2018 837th jakobwitte 832 60 12ms 16 Apr 2018 837th ETHproductions 🇺🇸 832 60 9ms 7 May 2018 837th thisishowmymindworks 🇳🇴 832 60 10ms 16 Sep 2020 837th niklv 🇷🇺 832 60 10ms 6 Jan 2024 837th targrik 832 60 9ms 27 Apr 2025 837th SirBogman 🇺🇸 832 60 10ms 4 Oct 2025 845th neihousaigaai 832 125 25ms 11 Jun 2022 845th 5cw 🇺🇸 832 125 24ms 5 Nov 2024 845th CornerMercury 🇬🇧 832 125 26ms 7 Jan 2026 848th prplz 🇦🇺 831 74 2ms 9 Jul 2021 849th Kacarott 🇦🇺 830 55 388ms 15 Jan 2024 849th sisyphus-ppcg 🇦🇺 830 55 467ms 17 Jan 2024 849th MeWhenI 🇻🇦 830 55 417ms 17 Jan 2024 849th ndren 830 55 416ms 8 Feb 2026 853rd Shanethegamer 🇺🇸 830 91 121ms 11 Mar 2023 854th namelessiw 830 92 386ms 2 Oct 2025 854th HumanoidCPU 830 92 444ms 8 Nov 2025 856th pardouin 🇫🇷 827 58 146ms 2 Mar 2025 857th inventshah 827 78 2ms 20 Sep 2022 858th treeowl 827 80 110ms 25 Feb 2019 858th user189032 827 80 114ms 29 May 2019 858th strout 827 80 118ms 15 Dec 2023 858th tobeannouncd 827 80 108ms 8 Jan 2024 858th alomiF 827 80 121ms 23 Aug 2024 863rd janbehrens 🇩🇪 827 96 56ms 20 Nov 2022 864th zakariamouhid 825 126 24ms 10 Jan 2023 864th AlephSquirrel 825 126 26ms 8 Sep 2024 866th shraiwi 823 64 10ms 7 Dec 2020 866th geofft 823 64 9ms 10 Dec 2020 866th Yewzir 🇧🇪 823 64 10ms 18 Sep 2023 866th Chimplement 823 64 10ms 13 Dec 2023 866th fgrosshans 🇫🇷 823 64 10ms 17 Jul 2024 871st arjanadriaanse 🇳🇱 822 72 47ms 28 Sep 2023 871st annaproxy 822 72 9ms 4 Oct 2023 873rd Yewzir 🇧🇪 822 88 381ms 28 Mar 2024 873rd fuzzylojik-golf 🇺🇸 822 88 361ms 16 Sep 2025 875th rucin93 🇵🇱 821 59 5ms 7 Dec 2020 876th janbehrens 🇩🇪 821 92 116ms 8 Jun 2021 877th sean-niemann 🇺🇸 821 93 521ms 24 Sep 2025 877th sisyphus-ppcg 🇦🇺 821 93 368ms 25 Nov 2025 879th dokutan 821 122 295ms 14 Jul 2025 880th jared-hughes 821 138 7ms 16 Jul 2023 First Prev 801–880 of 3,064 Next Last