The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 32 hours. Why not try and solve them ahead of time?
Transpose Sentence in all languages in chars. 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 Chars Time Submitted 801st CaedenHarper 🇨🇦 481 234 32ms 14 days ago 802nd yoshykai 479 209 429ms 29 Mar 2025 803rd BambooleanLogic 🇸🇪 478 132 12ms 7 Aug 2024 804th bobbysq 478 138 37ms 15 Sep 2024 804th Jaydosu 478 138 10ms 16 Apr 2025 804th SectorCorruptor 478 138 11ms 5 Feb 2026 804th jameswmccarty 478 138 12ms 10 days ago 808th Shanethegamer 🇺🇸 476 74 9ms 29 Jul 2024 809th madeforlosers 474 133 13ms 35 mins ago 810th wobblybits 474 139 13ms 15 Aug 2025 811th raphaelimahorn 471 134 11ms 14 days ago 812th KatieLG 🇬🇧 469 299 302ms 13 Oct 2024 813th nstearns96 🇬🇧 468 141 11ms 22 Aug 2024 813th AstroOrbis 468 141 10ms 15 Jul 2025 815th brandon-04 467 194 410ms 7 Nov 2025 816th gnuvince 466 49 3ms 29 Jun 2025 817th Stockoh 🇫🇷 464 142 21ms 4 Nov 2024 818th madex 🇩🇪 461 244 28ms 14 days ago 819th mousetail 🇳🇱 459 95 96ms 26 Jul 2024 820th tomh1012 459 170 9ms 14 days ago 820th rucin93 🇵🇱 459 170 25ms 13 days ago 822nd beirigo 🇧🇷 455 97 38ms 31 Jul 2024 823rd adamnielson42 🇺🇸 455 145 11ms 7 Oct 2024 823rd cthierfelder 🇲🇨 455 145 11ms 9 Sep 2025 825th Chinay-Domitrix 🇺🇸 455 247 29ms 13 days ago 826th cyxv 452 146 10ms 26 Jul 2024 827th tdib 449 147 11ms 12 Jan 2025 828th dokutan 448 51 9ms 26 Jul 2024 829th Shanethegamer 🇺🇸 448 94 2,158ms 8 Oct 2024 830th TaserTheFox 🇺🇸 446 148 10ms 22 Jan 2026 831st MeWhenI 🇻🇦 442 162 7ms 29 Jul 2024 832nd 4ndyJ 🇬🇧 434 152 12ms 14 Nov 2024 833rd brimstonetrader 429 208 129ms 27 Aug 2024 834th madex 🇩🇪 424 291 280ms 28 Jul 2024 835th raphaelimahorn 418 187 4ms 14 days ago 835th zakariamouhid 418 187 5ms 13 days ago 837th te-chnical 415 159 11ms 8 May 2025 838th MeWhenI 🇻🇦 415 165 168ms 29 Jul 2024 839th Shanethegamer 🇺🇸 409 67 3,827ms 16 Oct 2024 840th blaztoma 🇱🇹 409 236 74ms 23 Nov 2025 841st erikrose100 405 123 833ms 10 Aug 2024 842nd blaztoma 🇱🇹 404 156 14ms 23 Nov 2025 843rd alphafalfa 403 118 4ms 25 Oct 2024 844th zt14427 400 165 16ms 11 Feb 2025 845th MeWhenI 🇻🇦 398 106 1,216ms 27 Jul 2024 846th aaardwark 390 169 11ms 3 Jun 2025 846th wuduculfre 390 169 14ms 22 Jul 2025 848th bac0id 390 262 2,859ms 10 Jan 2025 849th Zinfour 388 170 46ms 30 Jul 2024 850th MateuszPietrzak 🇵🇱 388 263 3,096ms 31 Jul 2024 851st damagegithub 385 265 3,252ms 14 Feb 2026 852nd Natanaelel 🇸🇪 384 88 13ms 26 Jul 2024 853rd stertooy 🇧🇪 383 172 11ms 26 Jul 2024 854th muser-logiccpu 🇺🇦 379 174 11ms 25 Aug 2025 855th BREMAUCY 🇫🇷 379 297 29ms 14 days ago 856th JesseNoEyes 🇺🇸 373 177 12ms 18 Oct 2024 857th iczelia 🇩🇪 373 228 4ms 14 Oct 2025 858th Andrey2001 368 179 11ms 1 Feb 2026 859th msbranicky 367 213 14ms 14 days ago 860th KatieLG 🇬🇧 367 336 280ms 13 Oct 2024 861st WillowWispy 366 180 12ms 23 Mar 2025 862nd BREMAUCY 🇫🇷 362 653 21ms 7 Aug 2025 863rd Ashikpaul 🇮🇳 359 176 11ms 19 Oct 2024 864th bac0id 359 237 4ms 10 Jan 2025 864th madex 🇩🇪 359 237 3ms 13 Jul 2025 866th yukii1004 355 186 10ms 26 Sep 2025 867th Kokusui 🇯🇵 353 192 7ms 25 Jul 2024 868th ridilculous 346 295 2,972ms 2 Aug 2024 869th atazzam 🇺🇸 345 191 15ms 16 Jan 2025 870th KatieLG 🇬🇧 345 257 3ms 2 Oct 2025 871st msbranicky 344 247 4ms 5 Jul 2025 872nd junkondo-jp 343 184 11ms 22 Sep 2024 873rd rifatx 339 413 289ms 25 Jul 2024 874th thomastjdavis 336 145 267ms 15 Apr 2025 875th Maximizer02 336 219 12ms 25 Jul 2024 876th kmathis22 327 344 28ms 14 days ago 877th Protothor 325 240 9ms 11 days ago 878th Matter1024 🇮🇳 323 242 5ms 8 days ago 879th varhammer 317 304 9ms 9 Aug 2024 880th davidludwik2370 296 223 11ms 17 Sep 2025 First Prev 801–880 of 950 Next Last