The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 days. Why not try and solve them ahead of time?
Poker 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 401st MeWhenI 🇻🇦 523 579 390ms 13 Oct 2023 402nd FlorianCassayre 🇫🇷 522 493 22ms 25 Oct 2023 403rd msbranicky 521 581 375ms 10 Jan 2025 404th Shanethegamer 🇺🇸 521 584 520ms 27 Oct 2023 405th junkondo-jp 519 477 15ms 27 Jun 2024 406th fleischa 519 518 511ms 21 Nov 2021 407th JOrE20 517 479 14ms 21 Feb 2026 408th amollberg 🇸🇪 517 498 22ms 16 Jan 2022 409th MeWhenI 🇻🇦 517 508 6ms 3 Jul 2023 410th msbranicky 516 499 19ms 15 Jul 2023 411th MeWhenI 🇻🇦 515 518 504ms 28 Feb 2022 412th msrawson 514 501 12ms 31 Aug 2018 413th rollershutter 510 505 18ms 20 Mar 2025 414th dokutan 508 652 4ms 27 Dec 2025 415th MeWhenI 🇻🇦 506 479 205ms 25 Oct 2024 416th CaedenHarper 🇨🇦 506 490 13ms 29 Aug 2025 417th MeWhenI 🇻🇦 505 442 55ms 12 Nov 2022 418th tomh1012 504 511 18ms 22 days ago 419th tatzyr 🇯🇵 503 432 38ms 26 Feb 2025 420th twocatsinatrenchcoat 502 513 12ms 16 Apr 2022 421st MeWhenI 🇻🇦 502 635 412ms 26 Aug 2023 422nd edre 501 514 19ms 29 Jul 2018 423rd MeWhenI 🇻🇦 500 571 163ms 7 hours ago 424th roguh 🇬🇹 499 516 2ms 14 Jan 2024 425th Mabeloid 🇳🇴 494 522 3ms 28 Sep 2024 426th SpareManiKatti 489 507 19ms 19 Apr 2022 427th SmartK8 🇨🇿 489 550 510ms 30 Oct 2022 428th TheZwierzLF 🇵🇱 488 446 39ms 6 Jan 2026 429th MeWhenI 🇻🇦 487 529 2ms 7 May 2023 430th ShiraJoseph 🇺🇸 486 510 17ms 20 Jan 2023 431st vonKrafft 486 530 12ms 26 Mar 2020 432nd mathisfun271 484 532 19ms 17 Feb 2024 433rd janga1 481 535 17ms 20 Aug 2021 434th msbranicky 480 500 1,139ms 17 Jan 2024 435th jchitel 479 517 17ms 25 Sep 2020 436th hyvyys 479 538 38ms 15 Jul 2019 437th MeWhenI 🇻🇦 477 695 4ms 2 Oct 2022 438th guliyevemil1 🇦🇿 476 636 375ms 3 Feb 2021 439th MeWhenI 🇻🇦 475 512 40ms 18 Nov 2023 440th MeWhenI 🇻🇦 474 528 277ms 3 Mar 2023 441st MeWhenI 🇻🇦 468 762 24ms 17 Nov 2021 442nd nfl-odoo 467 551 18ms 7 Jun 2019 443rd Argeento 🇵🇱 465 533 16ms 25 Aug 2023 444th msbranicky 464 600 4,419ms 10 Jan 2025 445th janbehrens 🇩🇪 462 527 37ms 28 Oct 2023 446th MeWhenI 🇻🇦 462 659 290ms 17 Sep 2021 447th MeWhenI 🇻🇦 461 700 121ms 26 May 2022 448th Pena86 458 562 12ms 19 Mar 2021 449th jaredcrystal 🇺🇸 456 477 37ms 14 Dec 2020 450th ericlangedijk 🇸🇮 455 591 574ms 23 May 2023 451st alemelis 454 567 19ms 29 Aug 2024 452nd evan18c 453 568 14ms 15 Sep 2023 453rd tomh1012 452 595 560ms 22 days ago 454th fajost 451 571 13ms 10 Sep 2020 455th janbehrens 🇩🇪 449 458 4ms 28 Oct 2023 456th MeWhenI 🇻🇦 449 606 514ms 2 Jan 2022 457th rambox11 446 555 16ms 14 Dec 2019 458th RaBa21 🇭🇺 446 577 21ms 1 Aug 2025 459th MaxElf999 445 579 12ms 29 May 2022 460th emgordon154 444 558 15ms 2 Aug 2024 461st PyryL 🇫🇮 443 582 11ms 22 Aug 2024 462nd frobinsonj 440 563 12ms 12 Dec 2019 463rd KevinMarquette 🇺🇸 439 570 320ms 7 Jun 2020 464th SniperSmiley 🇺🇸 439 587 13ms 8 Jul 2022 464th yuchuehw 439 587 25ms 6 Jan 2024 466th TheZwierzLF 🇵🇱 437 589 12ms 13 Dec 2025 467th pkasting 433 595 2ms 8 Sep 2020 468th yokasuretsu 432 470 203ms 6 Jan 2025 469th adoxography 432 504 37ms 3 Apr 2022 470th dsntzn 🇸🇰 432 574 25ms 11 Sep 2020 471st Maashau 429 600 2ms 2 Dec 2025 472nd dokutan 429 707 2ms 10 Apr 2025 473rd emgordon154 428 567 201ms 23 Nov 2024 474th jerrandolph 427 709 334ms 25 Sep 2025 475th robin-scragg 426 604 18ms 26 Aug 2025 476th MeWhenI 🇻🇦 425 483 4ms 21 Mar 2024 477th ridingqwerty 🇺🇸 424 607 19ms 13 Dec 2023 478th alemelis 422 569 863ms 28 Aug 2024 479th MeWhenI 🇻🇦 418 725 2ms 20 Feb 2023 480th iczelia 🇩🇪 409 605 13ms 24 Oct 2025 First Prev 401–480 of 575 Next Last
