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?
Continued Fractions 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 321st Shanethegamer 🇺🇸 591 86 36ms 7 Dec 2025 322nd bitsandbeyond 🇳🇱 590 155 5ms 4 Dec 2025 323rd ZakkkkAttackkkk 🇵🇭 579 140 30ms 22 days ago 324th Aquateraneal 🇺🇸 575 141 20ms 8 days ago 325th madeforlosers 573 146 10ms 21 mins ago 326th KatieLG 🇬🇧 571 89 37ms 27 Feb 2026 327th Shanethegamer 🇺🇸 570 130 429ms 22 Nov 2025 328th BREMAUCY 🇫🇷 567 143 11ms 26 days ago 329th Ripick 542 257 380ms 15 days ago 330th Apfelvater 533 152 10ms 26 days ago 331st Matter1024 🇮🇳 533 221 457ms 26 Feb 2026 331st michelebastione 🇮🇹 533 221 460ms 11 days ago 333rd tomh1012 527 154 10ms 2 Mar 2026 334th matejmatik123 🇸🇰 521 233 1,367ms 28 Feb 2026 335th cros107 🇦🇺 520 156 10ms 1 Mar 2026 336th acollett89 520 161 9ms 6 days ago 337th Matter1024 🇮🇳 518 98 36ms 20 Dec 2025 338th scpchicken 🇵🇼 513 158 16ms 28 Feb 2026 339th tomh1012 510 164 12ms 18 days ago 340th chenyuan33 497 163 11ms 21 Feb 2026 341st denkyuu1 495 154 238ms 14 days ago 342nd bitsandbeyond 🇳🇱 494 269 42ms 20 Nov 2025 343rd roelderickx 486 167 12ms 16 days ago 344th bitsandbeyond 🇳🇱 483 168 10ms 19 Nov 2025 345th denkyuu1 480 169 18ms 5 days ago 346th KatieLG 🇬🇧 466 270 5ms 27 Feb 2026 347th zgialor-lab 458 177 11ms 20 days ago 348th albanian-laundromat 451 250 28ms 28 Feb 2026 349th matejmatik123 🇸🇰 449 217 2ms 28 Feb 2026 350th bitsandbeyond 🇳🇱 443 163 3ms 19 Nov 2025 351st aksyristos 427 190 17ms 1 Mar 2026 352nd Shanethegamer 🇺🇸 402 208 13ms 9 Dec 2025 353rd JOrE20 400 127 35ms 27 Feb 2026 354th AstroOrbis 384 211 10ms 28 Feb 2026 355th bitsandbeyond 🇳🇱 354 411 280ms 19 Nov 2025 356th TJK-S 297 273 11ms 27 days ago 357th fantaize 195 795 201ms 19 days ago 358th CaedenHarper 🇨🇦 47 791 16ms 25 days ago 359th kg583 🇺🇸 0 15 220ms 27 Feb 2026 360th 2bular 0 29 42ms 26 Feb 2026 360th darrenks 🇺🇸 0 29 42ms 24 days ago 360th Natanaelel 🇸🇪 0 29 43ms 24 days ago 363rd plcc0 0 32 43ms 27 Feb 2026 364th namelessiw 0 38 146ms 19 Nov 2025 365th GolfingSuccess 🇬🇷 0 47 105ms 21 Nov 2025 366th ovs-code 🇩🇪 0 62 5ms 28 Feb 2026 367th KatieLG 🇬🇧 0 74 5ms 28 Feb 2026 368th ovs-code 🇩🇪 0 76 15ms 28 Feb 2026 369th dokutan 0 96 61ms 2 days ago 370th GolfingSuccess 🇬🇷 0 120 62ms 19 Nov 2025 370th GolfingSuccess 🇬🇷 0 120 3ms 9 days ago 372nd GolfingSuccess 🇬🇷 0 125 8ms 21 Nov 2025 373rd Matter1024 🇮🇳 0 140 69ms 21 days ago 374th GolfingSuccess 🇬🇷 0 147 6ms 25 Dec 2025 374th dokutan 0 147 9ms 17 days ago 376th dokutan 0 152 4ms 25 days ago First Prev 321–376 of 376