The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 7 days. Why not try and solve them ahead of time?
Partition Numbers 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 798th dokutan 124 655 5ms 3 Mar 2025 798th CaedenHarper 🇨🇦 124 655 5ms 16 Aug 2025 798th KatieLG 🇬🇧 124 655 5ms 30 Sep 2025 804th HumanoidCPU 123 348 35ms 23 Nov 2025 805th Shanethegamer 🇺🇸 123 665 385ms 26 Nov 2024 805th HumanoidCPU 123 665 395ms 6 Jan 2025 805th mwarvik 🇳🇴 123 665 390ms 5 Jan 2026 805th amazingalek 🇳🇴 123 665 416ms 6 Jan 2026 809th KatieLG 🇬🇧 123 693 478ms 30 Nov 2025 810th dokutan 122 352 76ms 20 Apr 2025 811th Shanethegamer 🇺🇸 122 667 117ms 26 Nov 2024 811th HumanoidCPU 122 667 125ms 6 Jan 2025 811th MeWhenI 🇻🇦 122 667 110ms 1 Mar 2025 811th CaedenHarper 🇨🇦 122 667 108ms 16 Aug 2025 815th Shanethegamer 🇺🇸 122 682 57ms 26 Nov 2024 815th CaedenHarper 🇨🇦 122 682 56ms 16 Aug 2025 815th HumanoidCPU 122 682 56ms 28 Nov 2025 818th KatieLG 🇬🇧 121 676 222ms 30 Nov 2025 819th KatieLG 🇬🇧 120 768 109ms 20 Apr 2025 819th CaedenHarper 🇨🇦 120 768 112ms 1 Dec 2025 821st KatieLG 🇬🇧 117 648 2ms 6 Mar 2025 822nd dokutan 116 395 249ms 20 Apr 2025 823rd Shanethegamer 🇺🇸 116 678 457ms 26 Nov 2024 823rd MeWhenI 🇻🇦 116 678 434ms 28 Feb 2025 825th HumanoidCPU 116 679 446ms 6 Jan 2025 825th CaedenHarper 🇨🇦 116 679 458ms 16 Aug 2025 827th dokutan 115 247 41ms 3 Mar 2025 828th KatieLG-Transpiler 🇬🇧 115 745 372ms 9 Jan 2026 829th Shanethegamer 🇺🇸 114 662 2ms 26 Nov 2024 829th HumanoidCPU 114 662 2ms 6 Jan 2025 829th MeWhenI 🇻🇦 114 662 2ms 1 Mar 2025 829th CaedenHarper 🇨🇦 114 662 2ms 16 Aug 2025 833rd HumanoidCPU 113 655 5ms 6 Jan 2025 833rd MeWhenI 🇻🇦 113 655 5ms 28 Feb 2025 833rd KatieLG 🇬🇧 113 655 5ms 6 Mar 2025 833rd CaedenHarper 🇨🇦 113 655 5ms 16 Aug 2025 833rd KatieLG-Transpiler 🇬🇧 113 655 5ms 9 Jan 2026 838th KatieLG-Transpiler 🇬🇧 113 666 2ms 9 Jan 2026 839th Shanethegamer 🇺🇸 112 656 39ms 26 Nov 2024 839th HumanoidCPU 112 656 39ms 6 Jan 2025 839th KatieLG 🇬🇧 112 656 40ms 6 Mar 2025 839th CaedenHarper 🇨🇦 112 656 39ms 16 Aug 2025 839th gigaprofisi 🇺🇸 112 656 39ms 5 Nov 2025 844th Schmitt-Very-Cool 111 771 486ms 3 Oct 2025 845th HumanoidCPU 109 654 1,156ms 6 Jan 2025 845th JDiLenarda 🇫🇷 109 654 1,324ms 27 Feb 2025 845th MeWhenI 🇻🇦 109 654 1,329ms 28 Feb 2025 845th CaedenHarper 🇨🇦 109 654 1,275ms 16 Aug 2025 849th KatieLG 🇬🇧 109 655 1,197ms 6 Mar 2025 850th KatieLG-Transpiler 🇬🇧 108 658 1,232ms 9 Jan 2026 851st HumanoidCPU 108 960 32ms 4 Nov 2025 852nd CaedenHarper 🇨🇦 108 962 25ms 16 Aug 2025 853rd KatieLG-Transpiler 🇬🇧 108 963 27ms 9 Jan 2026 854th KatieLG-Transpiler 🇬🇧 107 767 385ms 9 Jan 2026 855th MeWhenI 🇻🇦 107 778 56ms 1 Mar 2025 856th KatieLG 🇬🇧 107 964 24ms 6 Mar 2025 857th MeWhenI 🇻🇦 106 655 1ms 1 Mar 2025 857th HumanoidCPU 106 655 2ms 4 Mar 2025 857th CaedenHarper 🇨🇦 106 655 2ms 16 Aug 2025 857th fuzzylojik-golf 🇺🇸 106 655 1ms 3 Sep 2025 861st KatieLG-Transpiler 🇬🇧 106 770 111ms 9 Jan 2026 862nd MeWhenI 🇻🇦 105 654 4ms 1 Mar 2025 862nd CaedenHarper 🇨🇦 105 654 3ms 16 Aug 2025 864th KatieLG 🇬🇧 105 655 3ms 6 Mar 2025 864th KatieLG-Transpiler 🇬🇧 105 655 4ms 9 Jan 2026 866th AidanWalter 104 473 10ms 28 Nov 2025 867th Shanethegamer 🇺🇸 104 653 3ms 26 Nov 2024 867th MeWhenI 🇻🇦 104 653 2ms 1 Mar 2025 867th KatieLG 🇬🇧 104 653 2ms 6 Mar 2025 867th ehulinsky 🇺🇸 104 653 2ms 26 Mar 2025 867th CaedenHarper 🇨🇦 104 653 2ms 16 Aug 2025 867th KatieLG-Transpiler 🇬🇧 104 653 3ms 9 Jan 2026 873rd Shanethegamer 🇺🇸 104 668 130ms 26 Nov 2024 873rd HumanoidCPU 104 668 114ms 6 Jan 2025 873rd MeWhenI 🇻🇦 104 668 128ms 1 Mar 2025 873rd KatieLG 🇬🇧 104 668 129ms 6 Mar 2025 873rd CaedenHarper 🇨🇦 104 668 115ms 16 Aug 2025 878th KatieLG 🇬🇧 104 802 1,450ms 6 Mar 2025 879th Shanethegamer 🇺🇸 103 652 2,391ms 26 Nov 2024 879th HumanoidCPU 103 652 2,800ms 6 Jan 2025 First Prev 801–880 of 1,191 Next Last
