The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 24 hours. Why not try and solve them ahead of time?
Game of Life 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 560th msbranicky 504 197 17ms 27 Jul 2023 560th sciencedjinn 504 197 11ms 8 Nov 2024 563rd roguh 🇬🇹 504 210 2ms 17 Jan 2024 564th MeWhenI 🇻🇦 502 203 461ms 28 Apr 2023 565th commandz0 🇺🇸 501 173 725ms 1 Sep 2025 566th thomasklunker 501 198 12ms 2 Feb 2023 566th RYNO8 501 198 19ms 11 Apr 2023 568th Matter1024 🇮🇳 499 199 17ms 18 Jan 2026 569th KatieLG 🇬🇧 498 174 901ms 22 Sep 2025 570th TeodorDyakov 🇧🇬 497 195 2ms 2 Mar 2025 571st emgordon154 495 139 39ms 2 Aug 2024 572nd rsgray 494 201 11ms 22 Jan 2024 573rd msbranicky 494 244 95ms 16 Aug 2023 574th XenThe 🇬🇧 491 178 9ms 3 Sep 2025 575th SirFireball3521 491 202 18ms 3 Mar 2023 575th Babafaba 491 202 26ms 17 Nov 2025 577th Herbert00709 🇵🇱 490 198 2ms 12 May 2024 578th MeWhenI 🇻🇦 490 264 20ms 25 Dec 2022 579th msbranicky 485 278 310ms 31 Aug 2023 580th yzhs 🇩🇪 484 205 11ms 23 Jun 2023 581st Maashau 482 201 1ms 23 Nov 2025 582nd bac0id 482 245 460ms 27 Jun 2024 583rd Mandrzejy 🇵🇱 480 202 2ms 12 May 2024 584th MeWhenI 🇻🇦 479 192 1,466ms 18 Nov 2023 585th dylanarmstrong 477 183 11ms 28 Jan 2024 586th Schreipfelerer 477 208 18ms 11 Sep 2024 587th syntax-rules 477 248 450ms 26 Dec 2022 588th Larento 475 184 13ms 10 Oct 2023 589th DialFrost 🇸🇬 475 209 13ms 3 Aug 2024 590th Stockoh 🇫🇷 473 210 19ms 17 Nov 2024 591st xyangst 472 185 11ms 12 Oct 2024 592nd MeWhenI 🇻🇦 471 170 5ms 28 May 2023 593rd msbranicky 469 211 5ms 11 Oct 2023 594th YAJUE114514 468 212 10ms 12 Dec 2025 595th Michiocre 467 187 11ms 20 Feb 2024 596th fynnkroeger 466 213 21ms 15 Apr 2023 597th amollberg 🇸🇪 464 214 10ms 14 Jan 2024 597th TheZwierzLF 🇵🇱 464 214 95ms 2 Jun 2025 599th knutae 🇳🇴 462 215 16ms 14 Nov 2023 600th MeWhenI 🇻🇦 462 243 228ms 28 Apr 2023 601st klixel 🇨🇦 461 293 211ms 22 Nov 2023 602nd MeWhenI 🇻🇦 460 146 1,065ms 15 Sep 2025 603rd mrxz 🇳🇱 460 190 11ms 13 Aug 2024 604th skaravind 459 216 11ms 19 Jan 2026 605th MeWhenI 🇻🇦 458 189 156ms 3 Aug 2024 606th MeWhenI 🇻🇦 458 249 1,340ms 30 Apr 2023 607th Maznek 457 191 15ms 17 Jun 2023 608th ValentinCassayre 457 217 20ms 17 Oct 2023 608th piano-miles 457 217 12ms 6 Sep 2024 610th two-bad 🇬🇧 455 192 11ms 25 Feb 2024 611th roguh 🇬🇹 455 213 2ms 15 Jan 2024 612th msbranicky 455 297 221ms 16 Oct 2023 613th gigaprofisi 🇺🇸 454 247 288ms 6 Nov 2025 614th aaronze 🇦🇺 453 152 36ms 21 Sep 2023 615th Phil-RGOMEGA 453 234 2ms 23 Aug 2023 616th Andriamanitra 🇫🇮 450 153 39ms 17 Apr 2023 617th KatieLG 🇬🇧 450 194 19ms 7 Jan 2023 618th Babafaba 449 193 852ms 17 Nov 2025 619th aditsu 448 192 2,766ms 20 Aug 2025 620th bac0id 448 292 398ms 27 Jun 2024 621st JOrE20 446 196 12ms 28 Jan 2026 622nd janbehrens 🇩🇪 446 204 395ms 11 May 2023 623rd emgordon154 444 431 23ms 7 Aug 2025 624th jmerle 🇳🇱 443 224 20ms 10 Jul 2023 624th luuumine 🇫🇷 443 224 1,733ms 27 Oct 2025 626th CaedenHarper 🇨🇦 443 253 317ms 11 Aug 2025 627th mbittner20 441 225 12ms 27 May 2023 627th smilesformiles3 441 225 20ms 14 Jun 2025 629th msbranicky 441 262 4ms 20 Jan 2025 630th msbranicky 440 197 802ms 17 Jan 2024 631st tomh1012 439 226 18ms 25 Feb 2026 632nd Salutations45 435 182 4ms 12 Jan 2025 633rd snoozingnewt 🇨🇦 435 201 12ms 12 Oct 2025 634th bac0id 435 223 2ms 27 Jun 2024 635th jhpaques 🇫🇷 435 228 18ms 18 Jan 2023 635th Wildst 435 228 11ms 7 Jul 2023 637th RandGuy 432 230 11ms 26 Jan 2024 638th jerrandolph 432 312 313ms 22 Oct 2023 639th LukeBridges 🇬🇧 430 203 10ms 14 Oct 2024 640th MaxElf999 430 231 18ms 9 Jan 2023 First Prev 561–640 of 860 Next Last