The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 2 days. 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 641st JDiLenarda 🇫🇷 430 265 1,866ms 2 Dec 2023 642nd h3ra993huskp 🇯🇵 429 305 493ms 30 Nov 2025 643rd KatieLG 🇬🇧 428 161 118ms 22 Oct 2025 644th MeWhenI 🇻🇦 428 185 4ms 10 Feb 2023 645th MeWhenI 🇻🇦 428 221 692ms 22 Dec 2022 646th TheZwierzLF 🇵🇱 427 203 952ms 22 Nov 2025 647th jacekwladzinski 426 233 17ms 4 Oct 2025 648th stellartux 425 179 359ms 1 Jan 2024 649th 5cw 🇺🇸 425 264 318ms 22 Apr 2023 650th MeWhenI 🇻🇦 425 451 49ms 26 Aug 2023 651st weliveinhell 🇭🇹 424 206 9ms 20 Jun 2025 652nd tomh1012 424 215 417ms 17 Nov 2025 653rd FortuiteMan 🇫🇷 424 234 11ms 16 Oct 2024 654th eddiesmithxyz 423 290 134ms 6 Jan 2023 655th alicethecatwhisperermeow 420 217 486ms 7 Aug 2024 656th dranjohn 419 237 19ms 16 Sep 2023 657th TechNolaByte 418 209 14ms 22 Dec 2022 657th BalaM314 418 209 10ms 4 Feb 2025 659th lhulinsky 417 238 18ms 21 Oct 2024 660th mrmena 🇦🇺 417 269 42ms 16 Apr 2024 661st lomarbrick 415 239 17ms 19 May 2023 662nd Szum123321 🇵🇱 414 234 2ms 10 Dec 2023 663rd wh3n3v3r 🇨🇿 414 240 11ms 11 Nov 2024 664th blaztoma 🇱🇹 412 117 33ms 3 Jan 2026 665th HumanoidCPU 412 241 18ms 10 Jan 2026 666th Lv0Sys 🇵🇱 408 275 137ms 11 Dec 2025 667th bogosorter 407 244 10ms 13 Jul 2025 668th lcubelongren 405 245 10ms 16 Feb 2024 669th charliegaming 403 217 13ms 21 Oct 2024 670th celiendonze 🇨🇭 403 246 12ms 27 Jun 2023 670th jtaxen 403 246 17ms 26 Apr 2024 670th BREMAUCY 🇫🇷 403 246 17ms 15 Aug 2025 673rd myleopard 399 249 11ms 22 Dec 2022 674th MeWhenI 🇻🇦 397 164 4ms 15 Apr 2023 675th Adix-null 🇱🇹 389 234 424ms 12 Jan 2023 676th bac0id 386 236 430ms 27 Jun 2024 677th IISResetMe 383 183 427ms 14 Jul 2024 678th stefangabos 🇷🇴 383 228 16ms 6 Sep 2023 679th jacobly0 🇺🇸 382 294 176ms 4 Sep 2023 680th haighd 382 315 89ms 1 Jan 2023 681st yoshykai 381 344 405ms 28 Mar 2025 682nd msbranicky 380 295 339ms 13 Aug 2023 683rd commandz0 🇺🇸 379 296 511ms 11 Jun 2023 684th cbrt-x 378 346 400ms 14 Sep 2023 685th c0d3-4-F00d 🇩🇪 377 257 2ms 9 Jan 2023 686th jfallon1997 377 263 18ms 29 Apr 2024 687th HumanoidCPU 375 231 710ms 10 Jan 2026 688th msbranicky 371 232 2,548ms 11 Jan 2025 689th robertovers 369 269 17ms 21 Dec 2023 690th a6166231 🇨🇳 366 239 11ms 19 May 2025 691st amazingalek 🇳🇴 366 249 413ms 21 Jan 2026 692nd tomh1012 365 307 300ms 20 days ago 693rd rustykitty 🇺🇸 364 273 19ms 3 Nov 2025 694th CoolBvll 361 275 18ms 12 Jun 2025 695th bac0id 361 311 407ms 27 Jun 2024 696th rifatx 360 253 467ms 9 Jul 2024 697th KatieLG 🇬🇧 359 218 1,390ms 28 Dec 2022 698th weliveinhell 🇭🇹 359 270 2ms 21 Sep 2023 699th ShiraJoseph 🇺🇸 358 244 14ms 21 Jul 2023 700th roupiq 🇵🇱 356 332 441ms 18 Apr 2024 701st kimbo 🇺🇸 356 378 293ms 31 Dec 2022 702nd Natanaelel 🇸🇪 355 190 175ms 16 Feb 2023 703rd TaserTheFox 🇺🇸 353 281 13ms 5 May 2023 703rd muser-logiccpu 🇺🇦 353 281 11ms 8 Aug 2025 705th dokutan 352 368 8ms 27 Dec 2025 706th Maximizer02 349 320 127ms 13 Apr 2024 707th AbhilashaTandon 348 285 10ms 24 Sep 2023 707th qwjhvbxi 348 285 10ms 24 Feb 2024 709th msbranicky 347 305 2ms 19 Oct 2023 710th msbranicky 342 274 200ms 1 Jan 2024 711th Ripick 342 290 19ms 7 Feb 2023 712th ravnskjaer 🇩🇰 341 384 455ms 15 Dec 2025 713th cmccandless 340 292 12ms 16 Oct 2023 714th KatieLG 🇬🇧 340 396 298ms 13 Aug 2023 715th msbranicky 339 224 164ms 16 Jan 2024 716th LeeCamp 339 293 11ms 8 Jan 2023 717th violeta-desantis 337 288 2ms 2 Oct 2023 718th zakariamouhid 335 261 11ms 9 May 2023 719th ItsEthanDev 335 296 13ms 14 Dec 2023 720th TheZwierzLF 🇵🇱 333 207 285ms 24 Dec 2025 First Prev 641–720 of 859 Next Last