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 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 641st nstearns96 🇬🇧 389 136 17ms 5 Mar 2025 641st Bmrl7 389 136 9ms 23 Dec 2025 643rd unfinishedprogram 386 130 9ms 9 May 2025 644th 2011-Chan-Ethan 384 138 29ms 28 Aug 2025 645th AstroOrbis 381 139 14ms 22 Feb 2026 646th brimstonetrader 378 140 10ms 3 Apr 2025 647th guilhem-roy 🇫🇷 376 141 13ms 31 May 2025 648th CLOStrophobic 🇮🇹 373 142 32ms 27 Jan 2025 649th Feniske 🇫🇷 362 126 851ms 24 Oct 2025 650th msbranicky 355 213 2ms 1 Jun 2025 651st mbittner20 353 150 13ms 10 Mar 2025 651st robin-scragg 353 150 11ms 3 Oct 2025 653rd snoozingnewt 🇨🇦 351 209 41ms 23 Sep 2025 654th billythekid 342 154 4ms 7 Jun 2025 655th starfihs 342 155 12ms 1 Mar 2025 656th FlorianCassayre 🇫🇷 335 158 22ms 21 Jul 2025 657th madeforlosers 334 150 11ms 3 Mar 2025 658th msbranicky 325 163 10ms 17 Dec 2024 658th CutSandstone 325 163 38ms 5 Dec 2025 660th MateuszPietrzak 🇵🇱 323 257 70ms 10 May 2025 661st olleicua 🇺🇸 319 134 36ms 9 Nov 2025 662nd albanian-laundromat 318 249 33ms 2 Oct 2025 663rd WillowWispy 315 168 10ms 13 Mar 2025 664th FortuiteMan 🇫🇷 313 232 53ms 5 Feb 2026 665th kevinnaviapaiva 312 332 26ms 6 Mar 2025 666th SB-945 308 172 12ms 3 Mar 2025 667th mrmena 🇦🇺 307 242 41ms 10 Mar 2025 668th emgordon154 304 506 3ms 28 Feb 2025 669th IISResetMe 298 153 274ms 25 Mar 2025 670th tomh1012 294 180 10ms 27 days ago 671st Zhenyu-Bo 288 184 10ms 1 Aug 2025 672nd Yewzir 🇧🇪 286 185 18ms 15 Nov 2025 673rd Yewzir 🇧🇪 283 185 702ms 15 Nov 2025 674th Jaydosu 282 152 89ms 23 Apr 2025 675th madeforlosers 268 198 18ms 11 Nov 2025 676th ComputerKWasTaken 🇺🇸 258 205 12ms 3 Mar 2025 676th Mikey-Beep 🇬🇧 258 205 24ms 27 Jul 2025 678th croc54 250 212 10ms 26 Mar 2025 678th RaBa21 🇭🇺 250 212 25ms 19 Jul 2025 680th HumanoidCPU 244 687 10ms 7 Jan 2025 680th MeWhenI 🇻🇦 244 687 10ms 28 Feb 2025 680th dokutan 244 687 10ms 3 Mar 2025 680th KatieLG 🇬🇧 244 687 10ms 6 Mar 2025 680th pardouin 🇫🇷 244 687 10ms 11 Mar 2025 680th Shanethegamer 🇺🇸 244 687 10ms 21 Apr 2025 686th kevinnaviapaiva 238 349 1,397ms 27 Feb 2025 687th jumpingtj 235 225 12ms 9 Mar 2025 688th kkoenig 235 423 287ms 7 Sep 2025 689th Shanethegamer 🇺🇸 235 654 1ms 26 Nov 2024 689th HumanoidCPU 235 654 2ms 6 Jan 2025 689th MeWhenI 🇻🇦 235 654 1ms 28 Feb 2025 689th dokutan 235 654 1ms 3 Mar 2025 689th KatieLG 🇬🇧 235 654 2ms 8 Mar 2025 689th CaedenHarper 🇨🇦 235 654 2ms 12 Aug 2025 695th KatieLG-Transpiler 🇬🇧 235 655 1ms 9 Jan 2026 696th CaedenHarper 🇨🇦 234 716 10ms 16 Aug 2025 697th KatieLG-Transpiler 🇬🇧 234 717 10ms 9 Jan 2026 698th kevinnaviapaiva 225 364 409ms 27 Feb 2025 699th muser-logiccpu 🇺🇦 221 240 10ms 23 Jul 2025 700th jameswmccarty 219 242 10ms 4 Mar 2025 701st mrmena 🇦🇺 218 243 26ms 10 Mar 2025 702nd kevinnaviapaiva 217 244 25ms 27 Feb 2025 703rd dokutan 212 556 1,432ms 26 Jan 2026 704th dokutan 204 467 123ms 12 Dec 2025 705th NoneTheFewer 201 264 30ms 5 Jan 2026 706th helbling 🇨🇭 198 268 11ms 4 Mar 2025 707th kevinnaviapaiva 186 348 2ms 27 Feb 2025 708th Shanethegamer 🇺🇸 179 654 3ms 7 Feb 2026 708th CaedenHarper 🇨🇦 179 654 3ms 3 days ago 708th dokutan 179 654 3ms 2 days ago 711th HumanoidCPU 179 655 4ms 1 Jan 2026 711th KatieLG 🇬🇧 179 655 2ms 21 Feb 2026 713th kevinnaviapaiva 176 285 4,453ms 27 Feb 2025 714th dokutan 175 392 122ms 26 Jan 2026 715th HumanoidCPU 171 688 1,424ms 27 Jan 2025 715th KatieLG 🇬🇧 171 688 1,409ms 6 Mar 2025 715th CaedenHarper 🇨🇦 171 688 1,407ms 16 Aug 2025 718th MeWhenI 🇻🇦 169 800 2,018ms 1 Mar 2025 718th CaedenHarper 🇨🇦 169 800 1,647ms 16 Aug 2025 718th dokutan 169 800 1,708ms 13 Sep 2025 First Prev 641–720 of 1,201 Next Last