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?
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 481st hiddicop 🇸🇪 684 213 36ms 1 Feb 2021 482nd MeWhenI 🇻🇦 684 585 12ms 28 Aug 2023 483rd MeWhenI 🇻🇦 683 359 410ms 17 Apr 2023 484th denisfouchard 681 264 22ms 21 Aug 2025 485th MeWhenI 🇻🇦 681 304 166ms 8 Mar 2023 486th entibo 679 263 12ms 11 Dec 2019 487th billings7 🇬🇧 679 330 509ms 21 Nov 2021 488th hoodadam 678 265 18ms 13 Mar 2020 488th bastienvoirin 🇫🇷 678 265 11ms 8 Apr 2020 488th itiievskyi 🇺🇦 678 265 22ms 3 Aug 2020 488th joshmoody24 678 265 19ms 4 Mar 2022 488th markusgraube 678 265 11ms 8 Apr 2024 493rd ShiraJoseph 🇺🇸 677 264 13ms 1 Jan 2023 494th DialFrost 🇸🇬 676 266 11ms 27 Nov 2023 495th MeWhenI 🇻🇦 676 276 157ms 17 mins ago 496th eldritchconundrum 676 326 140ms 13 Oct 2021 497th BBoehm 🇩🇪 674 265 14ms 5 Feb 2021 497th Lv0Sys 🇵🇱 674 265 12ms 3 Dec 2025 499th kaascevich 674 307 124ms 14 Sep 2025 500th guliyevemil1 🇦🇿 672 365 305ms 16 Apr 2020 501st dokutan 671 217 38ms 23 Apr 2025 502nd henrytranter 671 268 11ms 7 Feb 2020 502nd marcin7Cd 671 268 12ms 17 Dec 2020 502nd dahrens 671 268 10ms 14 May 2021 502nd msbranicky 671 268 12ms 5 Jul 2023 506th olivermrose 🇺🇸 668 218 41ms 12 Oct 2021 507th KatieLG 🇬🇧 668 269 11ms 29 Jul 2024 508th TechNolaByte 667 268 14ms 25 Jul 2021 509th olavaga 666 270 11ms 16 Aug 2021 510th namelessiw 666 319 692ms 8 Oct 2025 510th MeWhenI 🇻🇦 666 319 727ms 7 Nov 2025 512th Babafaba 664 251 596ms 29 Oct 2025 513th dokutan 663 247 422ms 11 Feb 2025 514th ILMTitan 663 338 490ms 21 Nov 2021 515th mossprescott 661 272 12ms 19 Jan 2023 516th null-tangent 659 271 16ms 11 Sep 2022 517th prplz 🇦🇺 659 397 168ms 6 Feb 2021 518th Shanethegamer 🇺🇸 659 464 1,606ms 23 Apr 2025 519th ian-h-chamberlain 🇺🇸 658 273 10ms 29 Dec 2019 519th xyangst 658 273 12ms 15 Oct 2024 521st MeWhenI 🇻🇦 658 328 2ms 25 Aug 2023 522nd MeWhenI 🇻🇦 657 292 118ms 13 Dec 2022 523rd wrhm 656 274 11ms 16 Dec 2020 523rd Lv0Sys 🇵🇱 656 274 20ms 3 Dec 2025 525th vroup 🇩🇰 654 273 10ms 18 Aug 2025 526th mtirado1 654 336 2ms 12 Apr 2023 527th yzhs 🇩🇪 654 337 134ms 25 Jul 2021 528th sambirnbaum1 653 275 10ms 12 Oct 2019 528th kypi 653 275 24ms 22 Feb 2020 528th tpaxman 🇨🇦 653 275 11ms 9 Dec 2020 528th guilhem-roy 🇫🇷 653 275 11ms 7 Mar 2022 528th BREMAUCY 🇫🇷 653 275 12ms 21 hours ago 533rd emgordon154 652 401 424ms 24 Feb 2025 534th HoffmannJM 651 315 15ms 17 Nov 2021 535th 0xjac 🇨🇭 651 377 331ms 9 Jun 2025 536th Feniske 🇫🇷 650 253 322ms 12 Nov 2023 537th Yewzir 🇧🇪 650 345 420ms 19 Jun 2024 538th pascscha 649 277 11ms 28 Mar 2022 539th jjstreet 647 328 722ms 1 May 2020 540th Yewzir 🇧🇪 647 357 436ms 17 Jan 2025 541st SirBogman 🇺🇸 646 229 35ms 9 Sep 2022 542nd yzhs 🇩🇪 646 278 10ms 7 Feb 2020 542nd resoNathan 646 278 11ms 19 Jun 2024 544th greenstuartj 645 229 167ms 31 Aug 2023 545th Lv0Sys 🇵🇱 644 226 39ms 3 Dec 2025 546th ffelixm 644 279 11ms 31 May 2025 547th janAkali 🇷🇺 644 329 500ms 27 days ago 548th CarsonChr 🇺🇸 643 278 12ms 12 Jul 2023 549th Shanethegamer 🇺🇸 642 255 890ms 14 Mar 2023 550th dzhang314 640 281 11ms 14 Aug 2019 551st JOrE20 638 280 12ms 5 Feb 2026 552nd roavin 638 351 506ms 5 Jun 2022 553rd Fracture17 637 282 10ms 15 Apr 2023 553rd yuchuehw 637 282 10ms 11 Jan 2024 555th boxjelly 637 346 142ms 13 Feb 2021 556th n1LS 636 229 41ms 26 Sep 2019 557th camieac 🇬🇧 635 283 11ms 20 Aug 2023 558th Shanethegamer 🇺🇸 634 337 3ms 14 Mar 2023 559th bbnumber2 633 284 17ms 29 Oct 2023 560th targrik 633 288 5ms 29 Jan 2025 First Prev 481–560 of 1,137 Next Last
