The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 3 days. Why not try and solve them ahead of time?
Levenshtein Distance 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 881st MateuszPietrzak 🇵🇱 449 240 686ms 15 Dec 2023 882nd JunkIce 448 152 11ms 19 Jan 2025 883rd CaedenHarper 🇨🇦 447 184 1,719ms 16 Nov 2025 884th Yewzir 🇧🇪 447 223 161ms 9 Jun 2023 885th bschorno 447 327 436ms 4 Aug 2022 886th MeWhenI 🇻🇦 446 309 16ms 17 Nov 2021 887th sleepyStick 445 153 63ms 8 Dec 2021 887th CatsAreFluffy 445 153 27ms 25 Nov 2022 887th retrohun 445 153 51ms 25 Dec 2022 887th quimey 445 153 324ms 21 Mar 2023 891st edsrzf 🇳🇿 445 310 22ms 20 Nov 2024 892nd Yewzir 🇧🇪 445 392 2ms 3 Jun 2023 893rd hamhub7 444 329 455ms 10 Aug 2022 894th jacklynnepenick 442 154 35ms 11 Sep 2021 895th MeWhenI 🇻🇦 442 324 2ms 26 May 2023 896th dokutan 441 224 4ms 15 Feb 2026 897th abailey2020 🇺🇸 439 155 48ms 13 Dec 2020 898th MeWhenI 🇻🇦 439 443 68ms 13 Jul 2021 899th Haksell 🇦🇶 438 111 82ms 23 Feb 2023 900th boxjelly 438 327 2ms 15 Feb 2021 901st OllieBoyne 🇬🇧 436 156 78ms 6 Feb 2021 901st hiichbindermax 436 156 31ms 25 Feb 2022 903rd heanyang1 436 229 2ms 20 Apr 2025 904th Maximizer02 435 223 31ms 29 Jul 2024 905th argusdusty 🇺🇸 434 157 24ms 27 Dec 2020 905th Shanethegamer 🇺🇸 434 157 128ms 20 Jan 2025 907th bbonenfant 431 158 76ms 27 Nov 2020 907th Bodo171 431 158 76ms 5 Dec 2022 907th rifatx 431 158 40ms 23 Mar 2023 907th cingulataluke 431 158 11ms 29 Aug 2023 907th croc54 431 158 277ms 11 Jan 2025 912th Shanethegamer 🇺🇸 430 310 51ms 6 Sep 2024 913th marcin7Cd 426 160 28ms 22 Dec 2020 913th Lv0Sys 🇵🇱 426 160 10ms 4 Dec 2025 915th Zach1031 425 411 280ms 23 Nov 2025 916th GrayJoKing 🇦🇺 424 233 473ms 30 Sep 2024 917th JunkIce 423 152 475ms 19 Jan 2025 918th betaveros 423 161 29ms 1 Jan 2023 918th BREMAUCY 🇫🇷 423 161 11ms 29 Jul 2025 918th qpwoeirut 423 161 10ms 21 Aug 2025 921st zakariamouhid 423 228 11ms 4 Jun 2023 922nd CatsAreFluffy 420 153 567ms 15 Jan 2024 923rd janbehrens 🇩🇪 420 285 10ms 4 Sep 2021 924th knutae 🇳🇴 418 163 199ms 30 Nov 2021 925th KatieLG-Transpiler 🇬🇧 416 445 389ms 25 Sep 2022 926th rosvik 🇳🇴 415 164 29ms 26 May 2021 926th nstearns96 🇬🇧 415 164 122ms 15 Dec 2022 926th SanderRuud 415 164 44ms 13 Jul 2025 929th keelimeguy 🇺🇸 415 421 3ms 8 May 2025 930th guilhem-roy 🇫🇷 413 165 32ms 24 Feb 2022 930th janbehrens 🇩🇪 413 165 10ms 17 Jun 2023 932nd ollyspooner 412 234 10ms 30 Nov 2023 933rd SectorCorruptor 410 166 33ms 11 Feb 2026 934th MeWhenI 🇻🇦 410 197 187ms 25 Oct 2024 935th dokutan 409 201 1,438ms 29 Aug 2025 936th jacobly0 🇺🇸 408 167 72ms 7 Sep 2023 937th Athe81 407 237 10ms 4 Jan 2021 938th MeWhenI 🇻🇦 407 239 4ms 23 May 2023 939th richard-oelze 🇩🇪 405 168 32ms 30 Jan 2021 939th Indivicivet 405 168 477ms 26 Oct 2021 941st MeWhenI 🇻🇦 404 405 1,696ms 26 Aug 2023 942nd CaedenHarper 🇨🇦 404 432 2ms 31 Oct 2024 943rd LeeCamp 403 169 38ms 10 Apr 2023 944th Shanethegamer 🇺🇸 403 190 2,289ms 6 Oct 2021 945th arctouch-cristiannevianna 403 363 462ms 1 Mar 2024 946th MeWhenI 🇻🇦 402 349 311ms 27 May 2021 947th MeWhenI 🇻🇦 401 408 75ms 8 May 2022 948th za3k 400 170 36ms 9 Dec 2022 949th Marthe-CC 398 171 10ms 20 Oct 2022 950th ydevor 🇮🇱 394 173 34ms 15 Feb 2021 950th AlexanderFair 394 173 107ms 21 Jul 2023 952nd stellartux 393 187 358ms 24 Dec 2023 953rd lyphyser 393 365 3ms 12 Jul 2023 954th SirBogman 🇺🇸 392 252 214ms 8 Oct 2024 955th HumanoidCPU 392 445 2ms 29 Jul 2023 956th TaserTheFox 🇺🇸 391 174 25ms 20 Mar 2023 957th nmgetahun 389 175 37ms 9 Dec 2022 957th rollershutter 389 175 262ms 4 Mar 2025 957th Bmrl7 389 175 52ms 23 Dec 2025 960th SpareManiKatti 386 250 15ms 9 Sep 2021 First Prev 881–960 of 1,186 Next Last
