The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 37 hours. Why not try and solve them ahead of time?
Seven Segment 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 881st janAkali 🇷🇺 543 214 382ms 15 Oct 2025 882nd MeWhenI 🇻🇦 543 493 1,476ms 10 Feb 2025 883rd Yewzir 🇧🇪 542 187 2ms 9 Feb 2024 884th yzhs 🇩🇪 541 189 10ms 29 Aug 2020 885th dokutan 540 162 412ms 21 Jun 2024 886th BrenSchaap 540 199 10ms 21 Oct 2021 886th sleepyStick 540 199 16ms 7 Dec 2021 886th adamnielson42 🇺🇸 540 199 9ms 18 May 2023 886th TheZwierzLF 🇵🇱 540 199 10ms 14 Dec 2025 890th dokutan 539 157 1,016ms 29 Aug 2025 891st jgbaldwinbrown 539 188 1ms 1 Sep 2021 892nd LHLaurini 🇧🇷 538 116 50ms 13 Jul 2024 893rd Natanaelel 🇸🇪 538 154 1ms 5 Jul 2022 894th PhysicDev 🇫🇷 537 200 10ms 18 Mar 2022 894th twocatsinatrenchcoat 537 200 9ms 5 Jun 2022 896th koipondx86 537 222 1ms 23 Jan 2025 897th NeatCrown 🇨🇦 537 228 63ms 4 Mar 2023 898th Eldrac 535 191 10ms 9 May 2020 898th mrxz 🇳🇱 535 191 9ms 9 May 2021 900th ArturLange 535 201 9ms 12 Sep 2018 900th Omega65536 🇩🇪 535 201 10ms 7 Jan 2021 900th RDShah 535 201 9ms 11 May 2022 900th aalec 535 201 9ms 25 Apr 2024 904th dokutan 535 269 40ms 9 Oct 2024 905th h3ra993huskp 🇯🇵 534 254 473ms 30 Nov 2025 906th ibeucaly 533 265 307ms 17 Sep 2022 907th msbranicky 533 281 195ms 6 Oct 2023 908th pschmid0 🇺🇸 532 184 4ms 29 Sep 2022 909th djtuBIG-MaliceX 532 202 10ms 30 Jan 2018 909th michelebastione 🇮🇹 532 202 10ms 19 Feb 2020 911th cmayer777 532 230 63ms 15 Oct 2022 912th Nefsen402 530 193 10ms 20 Jan 2019 912th Cr3aHal0 530 193 11ms 19 Jun 2019 912th owen-c-parker 🇺🇸 530 193 12ms 25 Jan 2023 915th denkyuu1 529 203 10ms 2 Feb 2026 916th commandz0 🇺🇸 528 192 1ms 24 Jul 2023 916th JDiLenarda 🇫🇷 528 192 399ms 21 Nov 2023 916th gastropner 528 192 2ms 10 Feb 2025 919th Shanethegamer 🇺🇸 528 217 65ms 22 Apr 2025 920th BlankSpruce 528 232 62ms 19 Sep 2024 921st simon-thornton_pace 527 204 9ms 26 Jan 2024 921st R4z0rX 527 204 10ms 21 Aug 2024 921st vhoulbreque 🇫🇷 527 204 10ms 3 Dec 2025 924th jupj 🇫🇮 524 119 56ms 13 Oct 2022 925th dokutan 524 157 35ms 16 Oct 2024 926th mintypython 524 195 10ms 4 Dec 2018 927th jrdallen97 524 205 10ms 4 Oct 2017 927th timchu 524 205 10ms 4 Mar 2021 927th amollberg 🇸🇪 524 205 9ms 25 Jan 2022 927th NerdyMcNerd42 524 205 9ms 11 Jun 2023 927th ThijsLuttikhuis 524 205 10ms 3 Mar 2024 927th julian-hoelz 524 205 9ms 22 Sep 2024 933rd msbranicky 523 167 704ms 16 Jan 2024 933rd Mabeloid 🇳🇴 523 167 488ms 14 Oct 2024 935th Shanethegamer 🇺🇸 522 205 38ms 16 Jun 2022 936th AIn0n 522 206 9ms 27 Aug 2021 936th r-benson 🇬🇧 522 206 10ms 1 Feb 2023 936th celiendonze 🇨🇭 522 206 10ms 16 Apr 2023 939th Andriamanitra 🇫🇮 521 158 35ms 20 Jul 2023 940th dokutan 521 200 1,022ms 4 Feb 2025 941st alemelis 520 149 592ms 4 Mar 2024 942nd guliyevemil1 🇦🇿 520 253 112ms 16 Apr 2020 943rd HumanEquivalentUnit 519 207 17ms 30 Dec 2021 943rd robin-scragg 519 207 10ms 18 Jun 2025 943rd nemoyatpeace 519 207 10ms 19 Jan 2026 946th BloodStormKnight 517 198 14ms 16 Oct 2022 947th loserface69 517 208 10ms 23 Jan 2021 947th LlamaLad7 🇬🇧 517 208 10ms 23 Jan 2021 949th YasuhiroTakada 517 262 421ms 5 Mar 2021 950th amazingalek 🇳🇴 514 197 477ms 4 Jan 2026 951st alangodfrey 514 209 9ms 18 Feb 2019 952nd cmayer777 512 198 2ms 16 Oct 2022 952nd Mabeloid 🇳🇴 512 198 2ms 24 Oct 2025 954th bbakersmith 512 210 10ms 14 Jul 2021 954th cubed-guy 512 210 10ms 17 Oct 2021 956th yokasuretsu 511 161 34ms 15 Apr 2018 957th alexsave 511 200 14ms 16 Nov 2025 958th dokutan 509 161 1,303ms 16 Oct 2024 959th p-vf 🇨🇭 509 199 405ms 21 Nov 2021 960th nstearns96 🇬🇧 509 211 10ms 18 Jan 2023 First Prev 881–960 of 1,502 Next Last
