The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 23 hours. Why not try and solve them ahead of time?
Poker 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 401st jared-hughes 357 332 38ms 3 Jan 2023 402nd KatieLG 🇬🇧 357 360 496ms 6 Oct 2025 403rd suwat513 356 378 23ms 28 Sep 2022 404th zakariamouhid 356 450 13ms 8 Jun 2023 405th JOrE20 355 379 12ms 8 Dec 2025 406th BambooleanLogic 🇸🇪 352 455 12ms 14 Nov 2022 407th FortuiteMan 🇫🇷 351 384 18ms 1 Jan 2026 408th alexkunin 346 462 15ms 4 Jul 2019 409th pkasting 345 595 2ms 8 Sep 2020 410th cure-honey 🇯🇵 344 1,088 50ms 19 May 2020 411th Maashau 343 600 2ms 2 Dec 2025 412th KatieLG 🇬🇧 343 853 390ms 11 Jan 2023 413th scpchicken 🇵🇼 341 395 13ms 28 Apr 2022 414th hamhub7 341 763 545ms 16 Aug 2022 415th Lv0Sys 🇵🇱 340 349 51ms 2 Dec 2025 416th nephila-nacrea 🇬🇧 339 575 4ms 22 Dec 2020 417th qpwoeirut 337 400 16ms 9 Nov 2025 418th fitzdotlol 🇺🇸 335 354 38ms 27 Jan 2022 419th junkondo-jp 335 477 11ms 27 Jun 2024 420th knutae 🇳🇴 333 404 23ms 4 Oct 2022 421st Yewzir 🇧🇪 333 405 19ms 5 Jun 2024 422nd KatieLG 🇬🇧 333 657 2,015ms 25 Apr 2021 423rd KatieLG 🇬🇧 333 883 302ms 11 Jun 2021 424th andrewjc2000 332 406 18ms 7 Jul 2025 425th RYNO8 330 408 12ms 22 Aug 2023 426th JRaspass 🇬🇧 329 313 255ms 4 Dec 2020 427th CaedenHarper 🇨🇦 328 432 2,361ms 6 Nov 2025 428th CaedenHarper 🇨🇦 327 490 12ms 29 Aug 2025 429th orthoplex 🇨🇽 325 335 43ms 8 Oct 2020 430th evan18c 325 414 14ms 27 Apr 2025 431st commandz0 🇺🇸 325 415 11ms 3 Nov 2022 432nd CaedenHarper 🇨🇦 325 871 805ms 7 Oct 2025 433rd CaedenHarper 🇨🇦 324 397 684ms 6 Nov 2025 434th InigoK 🇺🇸 324 416 17ms 23 Aug 2025 435th RockOfStone 322 543 2ms 9 Mar 2024 436th Lv0Sys 🇵🇱 321 373 849ms 2 Dec 2025 437th MeWhenI 🇻🇦 321 442 2,185ms 15 Sep 2025 438th guilhem-roy 🇫🇷 320 421 30ms 3 Mar 2022 438th nullie 320 421 18ms 8 Oct 2024 438th CaedenHarper 🇨🇦 320 421 17ms 6 Nov 2025 441st Schmitt-Very-Cool 320 883 810ms 3 Oct 2025 442nd bknower 319 422 13ms 30 Jun 2025 443rd commandz0 🇺🇸 317 405 942ms 1 Sep 2025 444th SpareManiKatti 316 507 15ms 19 Apr 2022 445th TimCurwick 🇺🇸 315 437 288ms 26 Jan 2021 446th gnlow 🇰🇷 315 508 16ms 14 Feb 2021 447th ShiraJoseph 🇺🇸 314 510 13ms 20 Jan 2023 448th adamnielson42 🇺🇸 313 431 11ms 3 Apr 2023 449th za3k 310 435 11ms 16 Oct 2022 450th jchitel 310 517 14ms 25 Sep 2020 451st marcin7Cd 309 436 22ms 14 Dec 2020 452nd wrhm 305 442 17ms 14 Dec 2020 453rd Bonjour27891 🇻🇳 303 444 19ms 19 Mar 2022 454th two-bad 🇬🇧 303 528 13ms 25 Feb 2024 455th AstroOrbis 302 446 10ms 15 Feb 2026 456th MeWhenI 🇻🇦 300 399 744ms 15 Feb 2023 457th Argeento 🇵🇱 300 533 12ms 25 Aug 2023 458th KatieLG 🇬🇧 300 836 7ms 7 Feb 2023 459th alangodfrey 299 451 11ms 31 Jan 2019 459th CedricGebistorf 299 451 11ms 4 May 2023 461st dokutan 298 402 883ms 20 May 2024 462nd MeWhenI 🇻🇦 298 479 205ms 25 Oct 2024 463rd roguh 🇬🇹 297 453 13ms 11 Jan 2024 464th thomasklunker 297 454 18ms 3 Feb 2023 465th Natanaelel 🇸🇪 296 401 39ms 22 Sep 2022 466th DialFrost 🇸🇬 295 406 975ms 24 May 2024 467th jfallon1997 295 457 11ms 17 Aug 2022 468th bidger 295 957 712ms 29 Oct 2022 469th sambirnbaum1 294 458 14ms 6 Sep 2019 469th croc54 294 458 21ms 4 Feb 2025 469th Emutis 🇱🇹 294 458 12ms 6 Sep 2025 472nd KatieLG 🇬🇧 291 988 417ms 23 May 2021 473rd rsgray 290 465 16ms 10 Feb 2024 474th cros107 🇦🇺 288 468 21ms 8 Feb 2025 475th jtaxen 283 476 21ms 23 May 2024 476th KatieLG 🇬🇧 282 1,001 700ms 24 Jan 2023 477th TheZwierzLF 🇵🇱 281 457 1,023ms 13 Dec 2025 478th dsntzn 🇸🇰 279 574 15ms 11 Sep 2020 479th StefanHabel 🇨🇦 278 484 18ms 2 Mar 2026 480th KatieLG 🇬🇧 278 1,044 816ms 10 Oct 2022 First Prev 401–480 of 567 Next Last
