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 879th MeWhenI 🇻🇦 103 652 2,506ms 1 Mar 2025 879th KatieLG 🇬🇧 103 652 2,217ms 6 Mar 2025 879th CaedenHarper 🇨🇦 103 652 2,367ms 16 Aug 2025 884th KatieLG 🇬🇧 101 777 476ms 6 Mar 2025 885th Shanethegamer 🇺🇸 100 646 4ms 24 May 2025 885th KatieLG 🇬🇧 100 646 5ms 30 Nov 2025 887th Shanethegamer 🇺🇸 100 658 9ms 26 Nov 2024 887th HumanoidCPU 100 658 9ms 6 Jan 2025 887th dokutan 100 658 9ms 12 Mar 2025 887th CaedenHarper 🇨🇦 100 658 9ms 16 Aug 2025 891st dokutan 100 670 5ms 21 Jun 2025 892nd retrohun 99 444 2ms 28 Feb 2025 893rd HumanoidCPU 99 648 3ms 6 Jan 2025 893rd MeWhenI 🇻🇦 99 648 3ms 28 Feb 2025 893rd CaedenHarper 🇨🇦 99 648 3ms 16 Aug 2025 893rd KatieLG-Transpiler 🇬🇧 99 648 3ms 9 Jan 2026 897th Shanethegamer 🇺🇸 99 661 66ms 26 Nov 2024 897th HumanoidCPU 99 661 66ms 6 Jan 2025 897th CaedenHarper 🇨🇦 99 661 62ms 16 Aug 2025 900th MeWhenI 🇻🇦 99 749 39ms 1 Mar 2025 900th KatieLG 🇬🇧 99 749 36ms 6 Mar 2025 900th CaedenHarper 🇨🇦 99 749 36ms 16 Aug 2025 903rd KatieLG-Transpiler 🇬🇧 99 750 38ms 9 Jan 2026 904th KatieLG 🇬🇧 99 2,788 2ms 6 Mar 2025 904th KatieLG-Transpiler 🇬🇧 99 2,788 1ms 9 Jan 2026 906th dokutan 98 340 2ms 3 Mar 2025 907th KatieLG-Transpiler 🇬🇧 98 803 152ms 9 Jan 2026 908th KatieLG 🇬🇧 97 343 2ms 6 Mar 2025 909th HumanoidCPU 97 655 140ms 6 Jan 2025 909th CaedenHarper 🇨🇦 97 655 133ms 16 Aug 2025 911th KatieLG 🇬🇧 97 659 155ms 30 Nov 2025 912th KatieLG-Transpiler 🇬🇧 97 712 105ms 9 Jan 2026 913th Shanethegamer 🇺🇸 96 652 3ms 13 Dec 2024 913th HumanoidCPU 96 652 3ms 7 Jan 2025 913th MeWhenI 🇻🇦 96 652 3ms 28 Feb 2025 913th dokutan 96 652 3ms 3 Mar 2025 913th KatieLG 🇬🇧 96 652 3ms 6 Mar 2025 913th CaedenHarper 🇨🇦 96 652 3ms 16 Aug 2025 913th JOrE20 96 652 4ms 2 Jan 2026 920th HumanoidCPU 96 656 125ms 6 Jan 2025 920th MeWhenI 🇻🇦 96 656 129ms 1 Mar 2025 920th KatieLG 🇬🇧 96 656 136ms 6 Mar 2025 920th CaedenHarper 🇨🇦 96 656 125ms 16 Aug 2025 920th prestosilver 🇺🇸 96 656 130ms 7 days ago 925th Shanethegamer 🇺🇸 96 663 1ms 26 Nov 2024 925th HumanoidCPU 96 663 2ms 6 Jan 2025 925th CaedenHarper 🇨🇦 96 663 2ms 16 Aug 2025 925th Maashau 96 663 2ms 12 Dec 2025 925th retrohun 96 663 2ms 5 hours ago 930th Shanethegamer 🇺🇸 95 651 66ms 26 Nov 2024 931st HumanoidCPU 95 653 69ms 27 Jan 2025 932nd MeWhenI 🇻🇦 95 654 66ms 1 Mar 2025 932nd KatieLG 🇬🇧 95 654 61ms 6 Mar 2025 932nd CaedenHarper 🇨🇦 95 654 64ms 16 Aug 2025 932nd KatieLG-Transpiler 🇬🇧 95 654 62ms 9 Jan 2026 936th KatieLG 🇬🇧 94 649 74ms 30 Nov 2025 937th MeWhenI 🇻🇦 93 655 69ms 28 Feb 2025 937th CaedenHarper 🇨🇦 93 655 76ms 16 Aug 2025 937th KatieLG-Transpiler 🇬🇧 93 655 83ms 9 Jan 2026 940th KatieLG 🇬🇧 92 712 667ms 30 Nov 2025 941st KatieLG 🇬🇧 92 754 2ms 6 Mar 2025 941st KatieLG-Transpiler 🇬🇧 92 754 1ms 9 Jan 2026 943rd HumanoidCPU 91 754 4ms 7 Jan 2025 944th MeWhenI 🇻🇦 90 668 112ms 1 Mar 2025 945th HumanoidCPU 90 856 7ms 16 Aug 2025 945th CaedenHarper 🇨🇦 90 856 7ms 22 Feb 2026 947th HumanoidCPU 88 846 43ms 9 Mar 2025 948th KatieLG 🇬🇧 87 683 42ms 6 Mar 2025 949th KatieLG-Transpiler 🇬🇧 87 729 366ms 9 Jan 2026 950th KatieLG 🇬🇧 87 760 9ms 6 Mar 2025 950th KatieLG-Transpiler 🇬🇧 87 760 10ms 9 Jan 2026 952nd KatieLG 🇬🇧 86 687 1ms 30 Nov 2025 953rd KatieLG-Transpiler 🇬🇧 85 754 134ms 9 Jan 2026 954th KatieLG-Transpiler 🇬🇧 85 772 626ms 9 Jan 2026 955th KatieLG 🇬🇧 85 901 6ms 21 Feb 2026 956th dokutan 84 719 117ms 3 Mar 2025 957th KatieLG-Transpiler 🇬🇧 83 767 2ms 9 Jan 2026 958th KatieLG 🇬🇧 83 769 1ms 6 Mar 2025 959th smclaughlin-cf 82 614 9ms 4 Mar 2025 960th AndyG-0112 82 1,039 397ms 25 Mar 2025 First Prev 881–960 of 1,192 Next Last
