The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 days. Why not try and solve them ahead of time?
Rock-paper-scissors-Spock-lizard 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 800th fgrosshans 🇫🇷 496 362 10ms 22 Jul 2024 802nd Chinay-Domitrix 🇺🇸 496 382 4,047ms 24 days ago 803rd Shanethegamer 🇺🇸 496 404 610ms 14 Mar 2023 804th andre-lameirinhas 🇵🇹 495 363 10ms 8 Feb 2020 804th derekthatcher 495 363 11ms 21 Sep 2020 804th julian-hoelz 495 363 10ms 22 Sep 2024 807th msbranicky 495 529 165ms 14 Oct 2023 808th befoster 494 364 10ms 8 May 2021 809th gifti258 493 403 97ms 14 Sep 2023 810th TimCurwick 🇺🇸 491 335 282ms 30 Nov 2020 811th inverseLorentz 🇦🇺 491 366 10ms 21 Jun 2022 811th RoscoeSmith 491 366 11ms 22 Nov 2022 813th sk- 490 367 11ms 17 Sep 2019 814th retrohun 489 336 11ms 29 Oct 2019 815th aydenp 🇨🇦 488 366 12ms 14 Nov 2021 816th CDWimmer 488 368 10ms 8 May 2020 817th mathieurodic 486 370 10ms 21 Oct 2025 818th CaedenHarper 🇨🇦 486 461 418ms 17 Oct 2025 819th gnlow 🇰🇷 484 369 12ms 26 Apr 2020 820th CatsAreFluffy 484 371 10ms 8 Feb 2023 821st Maximizer02 484 425 11ms 30 Oct 2024 822nd mousetail 🇳🇱 483 279 2ms 12 Nov 2024 823rd mintypython 482 371 13ms 11 Aug 2019 824th jmerle 🇳🇱 482 373 14ms 22 Jan 2022 825th JOrE20 481 374 10ms 8 Feb 2026 826th evnu 481 398 104ms 29 Jun 2023 827th eshilo-draper 479 375 10ms 13 Sep 2022 827th Ythaenagor 479 375 10ms 5 Aug 2024 829th MeWhenI 🇻🇦 479 397 1,023ms 14 Mar 2023 830th HumanoidCPU 477 377 11ms 6 Aug 2024 831st warmCabin 477 452 2ms 18 Dec 2019 832nd The-Wolfson 475 436 123ms 9 Feb 2025 833rd nephila-nacrea 🇬🇧 474 322 3ms 28 Jun 2019 834th ellis-rix 472 381 11ms 28 Oct 2024 835th ereztaiar 🇮🇱 471 379 11ms 7 Sep 2021 835th smclaughlin-cf 471 379 11ms 24 Feb 2025 837th CaedenHarper 🇨🇦 468 358 1,479ms 7 Sep 2025 838th dokutan 468 773 60ms 3 Jul 2025 839th dokutan 466 383 11ms 20 Apr 2025 840th inventshah 466 412 102ms 27 Jan 2023 841st Laksen 🇩🇰 466 776 27ms 8 Jul 2021 842nd snoozingnewt 🇨🇦 465 445 104ms 8 Oct 2025 843rd c0d3-4-F00d 🇩🇪 465 464 2ms 6 Jan 2022 844th Shanethegamer 🇺🇸 465 473 2ms 6 Apr 2022 845th stordev 463 388 11ms 26 Feb 2021 846th atn-graham 461 390 11ms 27 Jul 2021 847th GV94 🇸🇪 459 389 12ms 8 Dec 2020 848th tdkkdt 🇷🇺 459 488 456ms 21 Nov 2021 849th Crysp 457 391 12ms 13 Apr 2021 850th HumanoidCPU 456 366 696ms 6 Aug 2024 851st jameslindesay 456 394 10ms 25 Feb 2021 852nd dcure73 453 397 11ms 18 Jun 2019 853rd sciencejiho 452 398 10ms 26 Apr 2024 854th MeWhenI 🇻🇦 451 339 3ms 16 Apr 2023 855th dokutan 451 456 7ms 5 Jun 2024 856th msbranicky 451 544 346ms 31 Aug 2023 857th CatsAreFluffy 450 371 558ms 15 Jan 2024 858th trist224 🇫🇷 450 399 11ms 18 Oct 2022 858th Bulmenisaurus 450 399 11ms 1 Mar 2025 858th muser-logiccpu 🇺🇦 450 399 10ms 16 Aug 2025 861st madex 🇩🇪 450 507 4ms 11 days ago 862nd TravisEz13 447 368 291ms 5 Jun 2020 863rd scottjones4k 447 400 14ms 6 Jul 2022 864th roguh 🇬🇹 447 510 4ms 27 Jan 2024 865th Kloppermand 🇩🇰 446 403 13ms 1 Dec 2021 866th kmathis22 444 514 4ms 8 Oct 2025 867th msbranicky 444 643 2ms 11 Oct 2023 868th squadb3 441 405 13ms 10 Oct 2019 869th dijs 438 408 11ms 22 Dec 2019 870th omri2001 436 412 11ms 22 Oct 2022 870th nemo4598 436 412 10ms 24 Feb 2026 872nd dokutan 435 919 12ms 24 Dec 2024 873rd Zhenyu-Bo 434 414 12ms 1 Aug 2025 874th mossr 🇺🇸 433 378 498ms 6 Mar 2021 875th aaronze 🇦🇺 433 413 12ms 27 Apr 2021 876th lillian314159 433 415 13ms 24 Jul 2023 877th janbehrens 🇩🇪 431 536 3,115ms 20 Nov 2022 878th sli-Lut 430 418 11ms 24 Oct 2023 879th cure-honey 🇯🇵 430 698 42ms 6 May 2020 880th dokutan 428 1,772 59ms 6 Dec 2023 First Prev 801–880 of 1,137 Next Last
