Reversi in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 301st Shanethegamer 🇺🇸 590 136 57ms 1 Jun 2024 302nd Shanethegamer 🇺🇸 585 231 398ms 24 Sep 2025 303rd CornerMercury 🇬🇧 581 188 2,379ms 28 May 2025 304th Shanethegamer 🇺🇸 580 202 107ms 13 Jun 2024 305th Yewzir 🇧🇪 578 265 8ms 9 Jun 2024 306th bac0id 576 259 71ms 24 Jun 2024 307th MarcMush 🇫🇷 573 157 762ms 31 Jul 2024 308th annaproxy 569 192 192ms 28 Aug 2025 309th MostParsingVex 568 238 346ms 23 Jul 2024 310th Yewzir 🇧🇪 568 268 183ms 9 Jun 2024 311th dokutan 561 133 47ms 15 Aug 2024 312th MeWhenI 🇻🇦 560 299 46ms 3 Sep 2024 313th Shanethegamer 🇺🇸 558 152 1,066ms 1 Jun 2024 314th Shanethegamer 🇺🇸 555 189 7ms 28 Sep 2024 315th Yewzir 🇧🇪 552 323 6ms 9 Jun 2024 316th msbranicky 551 278 8ms 11 Aug 2024 317th albanian-laundromat 547 160 971ms 8 days ago 318th KatieLG 🇬🇧 541 202 2,916ms 25 May 2025 319th CaedenHarper 🇨🇦 539 356 330ms 8 days ago 320th dcgjb 538 155 1,407ms 4 Jun 2024 321st Shanethegamer 🇺🇸 535 228 6ms 13 Jun 2024 322nd InigoK 🇺🇸 533 205 24ms 22 Sep 2025 323rd hacker112 🇸🇪 533 213 12ms 27 Jun 2024 324th jerrandolph 529 363 255ms 29 Sep 2025 325th bac0id 528 237 2ms 24 Jun 2024 326th ndren 525 208 333ms 10 Jul 2025 326th albanian-laundromat 525 208 15ms 16 Sep 2025 328th KatieLG 🇬🇧 524 202 3,339ms 25 May 2025 329th Yax42 🇫🇷 518 261 402ms 27 days ago 330th msbranicky 516 372 295ms 14 Aug 2024 331st msbranicky 511 349 10ms 14 Aug 2024 332nd albanian-laundromat 509 208 694ms 10 Sep 2025 333rd elgan65536 508 215 13ms 3 Oct 2024 333rd jatloe 508 215 347ms 28 Oct 2024 335th madex 🇩🇪 507 247 2ms 10 Jun 2024 336th Yewzir 🇧🇪 500 371 33ms 9 Jun 2024 337th acollett89 491 231 11ms 18 Jul 2025 338th TobyBoyne 🇬🇧 490 223 20ms 6 Jun 2024 339th mousetail 🇳🇱 488 183 23ms 27 Sep 2024 340th msbranicky 483 315 161ms 14 Aug 2024 341st rucin93 🇵🇱 482 318 49ms 16 Jul 2024 342nd didion0 🇺🇸 481 236 17ms 21 Feb 2025 343rd bac0id 481 284 363ms 24 Jun 2024 344th mousetail 🇳🇱 475 230 24ms 22 Sep 2025 345th madeforlosers 471 241 44ms 18 Oct 2024 346th dokutan 466 290 400ms 24 Sep 2025 347th Yewzir 🇧🇪 466 293 373ms 22 Dec 2024 348th coreynash 465 244 15ms 12 Jun 2024 349th CaedenHarper 🇨🇦 456 249 13ms 25 Sep 2025 350th Yewzir 🇧🇪 450 302 96ms 19 Dec 2024 351st h3ra993huskp 🇯🇵 448 302 377ms 9 Jun 2024 352nd CaedenHarper 🇨🇦 442 309 398ms 22 days ago 353rd tatzyr 🇯🇵 439 183 141ms 26 Mar 2025 354th dokutan 433 271 21ms 3 Jun 2024 355th msbranicky 430 254 42ms 9 Aug 2024 356th wh3n3v3r 🇨🇿 428 255 54ms 12 Nov 2024 357th targrik 427 245 27ms 29 Jul 2025 358th blaztoma 🇱🇹 427 256 26ms 3 days ago 359th bac0id 427 317 351ms 24 Jun 2024 360th Bulmenisaurus 422 259 46ms 5 Jan 2025 361st CaedenHarper 🇨🇦 418 253 1,067ms 25 Sep 2025 362nd MeWhenI 🇻🇦 418 293 1,413ms 20 Jun 2024 363rd CaedenHarper 🇨🇦 415 263 29ms 25 Sep 2025 364th msbranicky 413 256 675ms 2 Jun 2024 365th mathisfun271 412 265 30ms 7 Oct 2024 366th dokutan 410 277 13ms 15 Jun 2025 367th dokutan 409 334 391ms 5 Jun 2024 368th dokutan 406 269 19ms 3 Jun 2024 369th Yewzir 🇧🇪 405 410 227ms 9 Jun 2024 370th LHLaurini 🇧🇷 399 314 2ms 29 Jun 2024 371st dokutan 395 268 643ms 3 Jun 2024 372nd CaedenHarper 🇨🇦 394 343 406ms 7 Oct 2025 373rd dokutan 385 292 141ms 15 Jun 2025 374th dokutan 380 273 3,535ms 23 Oct 2024 375th dokutan 379 237 319ms 14 Jun 2024 First Prev 301–375 of 426 Next Last