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?
Diamonds 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 241st zdzc 563 119 9ms 25 Apr 2019 241st lukasthaler 563 119 9ms 11 Sep 2020 241st cefqrn 563 119 10ms 20 Dec 2022 241st sjrct 563 119 10ms 5 Aug 2024 241st zgialor-lab 563 119 10ms 17 days ago 246th ludwig-n 558 120 10ms 4 Apr 2020 246th andre-lameirinhas 🇵🇹 558 120 18ms 4 Nov 2020 246th Bobini1 🇵🇱 558 120 10ms 10 Feb 2022 246th julian-hoelz 558 120 10ms 21 Sep 2024 246th sciencedjinn 558 120 10ms 8 Nov 2024 246th keelimeguy 🇺🇸 558 120 10ms 6 May 2025 252nd dymowski 554 121 10ms 10 Sep 2019 252nd matty3 554 121 10ms 26 Aug 2021 252nd LeeCamp 554 121 10ms 20 Dec 2021 252nd OppositeShark 554 121 10ms 19 Jul 2022 252nd Wildst 554 121 9ms 2 Nov 2022 252nd jacksonhenry3 554 121 10ms 2 Dec 2022 252nd Vaekor 554 121 9ms 27 Feb 2024 252nd aaa123git 554 121 10ms 17 Jul 2024 260th TheAristos 549 122 10ms 21 Oct 2019 260th danielwang5 549 122 12ms 1 Aug 2020 260th lostMia 549 122 10ms 17 Jun 2023 260th mateusz-sterczewski 549 122 10ms 7 Nov 2024 260th qwertzguy 🇫🇷 549 122 10ms 25 Mar 2025 260th Code-Coder-coder 549 122 11ms 11 Oct 2025 266th Malin001 545 123 9ms 4 Jan 2020 266th argusdusty 🇺🇸 545 123 14ms 31 Dec 2020 266th myleopard 545 123 10ms 13 Oct 2021 266th nullie 545 123 10ms 7 Jun 2022 266th RandGuy 545 123 11ms 22 Nov 2022 266th jeff-at-tamer-dot-codes 🇺🇸 545 123 10ms 6 Jun 2023 266th AstroOrbis 545 123 10ms 9 Feb 2026 273rd fynnkroeger 540 124 9ms 22 Jan 2021 273rd NicoAdams 540 124 10ms 21 Dec 2021 273rd nstearns96 🇬🇧 540 124 10ms 12 Jan 2023 273rd aalec 540 124 10ms 21 Apr 2024 273rd Alban-Boissard 540 124 10ms 14 Jun 2025 278th guliyevemil1 🇦🇿 536 125 10ms 30 Jan 2021 278th martinnorling 🇸🇪 536 125 9ms 14 Feb 2022 278th mrxz 🇳🇱 536 125 10ms 23 Jun 2024 278th RedzGoose 🇦🇺 536 125 10ms 14 Oct 2024 278th wh3n3v3r 🇨🇿 536 125 10ms 13 Nov 2024 278th ffelixm 536 125 10ms 1 Jun 2025 278th TheSecondComing123 536 125 10ms 26 Feb 2026 285th ValdeQwerty 532 126 10ms 10 Jun 2020 285th bryan15 532 126 11ms 26 Aug 2021 285th bthalheim 532 126 9ms 8 Sep 2022 285th MaxElf999 532 126 9ms 27 Sep 2022 285th quarl 532 126 9ms 12 Nov 2024 285th JunkIce 532 126 10ms 19 Jan 2025 291st celynw 528 127 13ms 4 Aug 2020 291st krcs 🇵🇱 528 127 9ms 25 Dec 2021 291st jm600 528 127 9ms 15 Apr 2022 291st msbranicky 528 127 10ms 5 Jul 2023 295th PFischbeck 523 128 10ms 13 Jun 2018 295th mossprescott 523 128 11ms 10 Jan 2023 295th Player01osu 523 128 10ms 29 Oct 2023 295th jatloe 523 128 10ms 26 Aug 2024 299th midnattssol 🇸🇪 519 129 9ms 27 Jul 2023 299th smokestacklightnin 🇺🇸 519 129 11ms 17 Dec 2023 301st 130N35 515 130 9ms 28 Jan 2020 301st PhysicDev 🇫🇷 515 130 11ms 19 May 2021 301st mbittner20 515 130 9ms 27 May 2023 301st audrey314 515 130 10ms 29 Oct 2023 301st ValentinCassayre 515 130 10ms 27 Jul 2024 306th MichaelMBradley 🇨🇦 511 131 9ms 3 Apr 2022 306th moustave 511 131 10ms 3 Dec 2024 308th thisishowmymindworks 🇳🇴 508 132 10ms 16 Oct 2020 308th Shreyas-21 508 132 10ms 17 Feb 2021 308th ImpressedByRocks 508 132 10ms 25 Aug 2022 308th QuincyNash 🇺🇸 508 132 10ms 29 Nov 2022 308th eiburns 508 132 9ms 18 Sep 2023 308th namelessiw 508 132 10ms 5 Mar 2024 314th ehulinsky 🇺🇸 504 133 62ms 10 Nov 2021 314th luuumine 🇫🇷 504 133 10ms 17 Oct 2025 314th GodlyProgrammer1 504 133 11ms 27 Nov 2025 317th rschwa6308 🇺🇸 500 134 10ms 18 Aug 2021 317th scottwday 🇨🇦 500 134 12ms 4 Dec 2021 317th Andrey135296 500 134 10ms 25 Nov 2024 320th dyc3 496 135 9ms 8 Aug 2020 First Prev 241–320 of 597 Next Last
