The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 27 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 881st csharpython 439 281 35ms 14 Sep 2025 882nd mousetail 🇳🇱 439 421 3ms 26 Jan 2024 883rd Betuaredead 439 458 648ms 11 Jan 2023 884th bakkeby 439 536 3ms 29 Sep 2022 885th bbakersmith 438 355 15ms 30 Jul 2021 886th Maximizer02 438 450 8ms 30 Jul 2024 887th ptforness 437 363 9ms 30 Dec 2022 888th rambox11 437 423 3ms 12 Mar 2019 889th olligobber 🇦🇺 436 375 119ms 18 May 2020 890th Domicnt 436 467 140ms 10 Jun 2020 891st abcdhhhh 433 318 10ms 26 Aug 2024 892nd Shanethegamer 🇺🇸 432 360 1,022ms 8 Sep 2021 893rd hamhub7 432 421 391ms 11 Aug 2022 894th Shanethegamer 🇺🇸 430 484 474ms 25 Sep 2025 895th wenbang24 428 322 12ms 29 Mar 2024 896th lewdev 🇺🇸 428 370 10ms 25 Jul 2021 896th unfinishedprogram 428 370 10ms 12 Jul 2024 898th RustemB 🇷🇺 427 308 175ms 22 May 2020 899th vroup 🇩🇰 427 371 10ms 20 Sep 2022 900th astdefu 427 433 3ms 10 Dec 2022 901st atazzam 🇺🇸 426 323 10ms 5 Mar 2022 902nd JPRuskin 🇬🇧 425 302 241ms 11 May 2024 903rd gifti258 425 677 68ms 13 Sep 2023 904th muztanger 424 429 379ms 21 Nov 2021 905th stordev 423 326 10ms 26 Feb 2021 906th vuxlee584 🇻🇳 421 327 11ms 15 Aug 2022 906th epic-programmer-guy 421 327 10ms 20 Dec 2025 908th LukasFolwarczny 🇨🇿 419 329 10ms 16 Sep 2022 909th Pena86 417 489 190ms 2 Jan 2022 910th galloj 🇨🇿 416 357 171ms 16 Jan 2023 911th hotmanga 414 333 10ms 23 Oct 2023 911th xbxbxb007 414 333 10ms 10 Jan 2024 913th bac0id 413 487 489ms 23 Feb 2024 914th Shanethegamer 🇺🇸 411 320 136ms 5 Feb 2021 915th KatieLG 🇬🇧 411 789 1,399ms 7 Jul 2025 916th FlorianCassayre 🇫🇷 410 336 20ms 29 Sep 2023 917th alphafalfa 410 370 2ms 26 Nov 2024 918th jngbsn 409 452 3ms 17 Jul 2020 919th dokutan 409 491 60ms 29 Apr 2024 920th zvnkk 408 349 2,418ms 15 Jun 2024 921st GeorgeStechman 🇬🇧 407 389 11ms 23 Jun 2022 922nd mishak-sys 405 340 10ms 28 Mar 2025 923rd MattShaile 405 391 12ms 5 Apr 2022 924th bac0id 405 514 404ms 26 Sep 2023 925th martinnorling 🇸🇪 404 341 10ms 8 Mar 2022 925th CoolBvll 404 341 10ms 12 Jun 2025 927th Fracture17 402 343 10ms 2 Apr 2023 927th NoneTheFewer 402 343 10ms 5 Jan 2026 929th mukulkesh 402 394 12ms 23 Mar 2023 930th bac0id 401 461 3ms 26 Sep 2023 931st chbea1 400 344 11ms 20 Apr 2021 931st YAJUE114514 400 344 11ms 12 Dec 2025 933rd bac0id 399 455 373ms 21 Nov 2021 934th DarkTemplar5 398 346 9ms 10 Oct 2020 934th Bananapants22 398 346 9ms 19 Aug 2022 936th simplylu 397 347 10ms 2 Mar 2021 936th pquline 397 347 10ms 6 Apr 2025 938th minipif 397 524 478ms 4 Jan 2026 939th TLeonardUK 396 508 457ms 2 Jan 2022 940th dokutan 395 468 1ms 29 Apr 2024 941st skps2010 394 350 10ms 28 Jan 2019 942nd zax2002 392 351 11ms 7 Sep 2020 943rd Shanethegamer 🇺🇸 389 330 259ms 14 Sep 2021 944th Shanethegamer 🇺🇸 389 345 3ms 20 Jan 2021 945th DGipe 385 358 11ms 1 Dec 2022 946th dokutan 385 548 465ms 27 Dec 2025 947th yuchuehw 384 359 11ms 11 Jan 2024 948th bac0id 384 413 11ms 20 Jun 2020 949th pafcom 383 360 11ms 4 Oct 2021 950th Bishwajit2u 383 414 11ms 17 Sep 2021 951st KatieLG 🇬🇧 383 825 2ms 17 May 2025 952nd CarraUjilen 379 338 259ms 26 Jul 2022 953rd varhammer 379 491 14ms 13 Dec 2023 954th Weston49 377 420 10ms 20 Oct 2023 955th jgbaldwinbrown 377 491 3ms 21 Sep 2021 956th Shanethegamer 🇺🇸 377 517 4ms 2 Jul 2023 957th dokutan 377 562 302ms 12 Dec 2025 958th nikolay 🇺🇸 377 563 279ms 5 Jan 2022 959th PSGruss 376 341 248ms 4 Jun 2020 960th newc0m 376 366 10ms 8 Apr 2019 First Prev 881–960 of 1,715 Next Last
