The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 42 hours. Why not try and solve them ahead of time?
Cubes 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 801st hjo33 490 433 306ms 24 Aug 2022 802nd MeWhenI 🇻🇦 488 412 88ms 8 May 2022 803rd Shanethegamer 🇺🇸 487 436 279ms 4 Feb 2021 804th Jaykul 486 264 262ms 11 May 2024 805th dokutan 486 491 120ms 12 Dec 2025 806th cingulataluke 485 284 10ms 26 Aug 2023 807th gjh71 🇳🇱 484 265 256ms 27 Dec 2020 808th Yewzir 🇧🇪 484 382 3ms 9 Feb 2024 809th JoeBigToe 482 266 238ms 9 Jun 2020 809th Msleizak 🇫🇷 482 266 296ms 27 Jun 2025 811th acollett89 482 329 13ms 4 Aug 2025 812th KatieLG 🇬🇧 482 377 418ms 13 Oct 2024 813th qwertyuiop3 🇷🇺 481 418 65ms 28 May 2025 814th dokutan 479 477 67ms 12 Dec 2025 815th f-tucker 478 288 9ms 30 May 2024 816th alangodfrey 477 289 10ms 30 Jan 2019 817th thisishowmymindworks 🇳🇴 476 333 11ms 16 May 2023 818th qwertyuiop3 🇷🇺 476 389 1ms 28 May 2025 819th philippths 476 437 427ms 5 Apr 2023 820th ztuned 475 290 11ms 26 Jul 2023 821st raphaelimahorn 475 438 355ms 17 days ago 822nd Maashau 474 390 3ms 25 Nov 2025 823rd eiburns 472 292 10ms 26 Jan 2023 823rd Vaekor 472 292 11ms 3 Aug 2023 823rd azka1368 472 292 10ms 24 Nov 2023 826th archee303 472 392 3ms 5 Feb 2020 827th SirFireball3521 470 293 10ms 25 Jan 2023 828th hyvyys 469 294 10ms 11 Sep 2020 829th DrPiranoid 467 295 10ms 25 Sep 2022 830th neel11235813 467 339 11ms 1 Feb 2024 831st dsx20 467 389 404ms 3 Dec 2022 832nd pandapawskat 467 396 1ms 14 Oct 2021 833rd msbranicky 467 436 192ms 6 Oct 2023 834th eddvrs 465 296 11ms 22 Dec 2023 835th Haksell 🇦🇶 464 297 10ms 1 Dec 2019 835th Kasci 464 297 22ms 30 Dec 2021 835th amollberg 🇸🇪 464 297 22ms 29 Jan 2022 835th OppositeShark 464 297 10ms 19 Jul 2022 835th ellis-rix 464 297 10ms 23 May 2023 840th angel-p57 🇯🇵 464 796 3ms 23 Nov 2023 841st nephila-nacrea 🇬🇧 463 290 3ms 23 May 2019 842nd AkashTandon167 463 400 3ms 13 Nov 2019 843rd omri2001 462 298 10ms 22 Oct 2022 844th snoozingnewt 🇨🇦 462 368 105ms 11 Feb 2024 845th roavin 462 393 368ms 7 Jun 2022 846th Kusarr 462 450 429ms 17 Dec 2020 847th Shanethegamer 🇺🇸 461 404 7ms 30 Aug 2024 848th Schmitt-Very-Cool 461 451 439ms 26 Sep 2025 849th Trunksistor 🇫🇷 459 300 10ms 11 Apr 2022 849th Emutis 🇱🇹 459 300 11ms 26 Aug 2025 851st p-vf 🇨🇭 459 396 386ms 21 Nov 2021 852nd astdefu 459 438 79ms 8 Dec 2022 853rd magarifullin 458 425 6ms 4 Oct 2024 854th Arkadios200 458 474 119ms 23 mins ago 855th weeble 457 373 6ms 24 Dec 2024 856th tsunderu 🇯🇵 457 405 2ms 29 Sep 2021 857th EyalLitvin 456 302 10ms 25 Nov 2022 858th Yewzir 🇧🇪 456 465 271ms 3 Jan 2024 859th gnlow 🇰🇷 454 349 10ms 3 May 2020 860th mrmena 🇦🇺 454 437 43ms 10 Jun 2024 861st NameRandomString 454 440 14ms 7 mins ago 862nd dsntzn 🇸🇰 453 350 10ms 10 Aug 2020 863rd yzhs 🇩🇪 452 362 125ms 25 Jul 2021 864th qzdl 451 413 7ms 20 Sep 2020 865th dev-kas 450 306 10ms 24 Aug 2025 866th janbehrens 🇩🇪 450 411 1ms 3 Jan 2022 867th Rubiksmath 449 307 9ms 29 Sep 2024 868th dokutan 449 351 1,111ms 29 Aug 2025 869th Radwatch 449 448 89ms 28 Jun 2022 870th dokutan 449 524 3ms 5 Dec 2025 871st SteveL-MSFT 447 287 260ms 6 Jun 2020 872nd MichalMarsalek 🇨🇿 447 826 3ms 25 Dec 2022 873rd zwxzwxzwx21 446 309 11ms 30 Jan 2024 874th aspiringLich 445 458 166ms 12 May 2022 875th janbehrens 🇩🇪 444 453 2,871ms 20 Nov 2022 876th olleicua 🇺🇸 444 832 3ms 15 Jul 2025 877th rak1507 🇬🇧 443 311 10ms 26 Nov 2021 878th dcure73 442 312 9ms 7 Jun 2019 879th msbranicky 440 387 95ms 15 Aug 2023 880th rucin93 🇵🇱 440 738 1,427ms 12 Mar 2025 First Prev 801–880 of 1,715 Next Last
