Reversi 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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel 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 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 ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel 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 Calendar 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 321st MostParsingVex 565 238 750ms 23 Jul 2024 322nd Yewzir 🇧🇪 563 268 163ms 9 Jun 2024 323rd snoozingnewt 🇨🇦 559 252 106ms 20 Nov 2025 324th dokutan 554 133 30ms 15 Aug 2024 325th Shanethegamer 🇺🇸 554 189 6ms 28 Sep 2024 326th Shanethegamer 🇺🇸 551 152 1,408ms 1 Jun 2024 327th Lv0Sys 🇵🇱 550 349 263ms 11 Dec 2025 328th msbranicky 547 278 8ms 11 Aug 2024 329th MeWhenI 🇻🇦 545 155 157ms 3 Aug 2024 330th Shanethegamer 🇺🇸 540 171 83ms 13 Jun 2024 331st dokutan 538 182 13ms 15 Jun 2025 332nd dokutan 537 172 16ms 1 Jul 2024 333rd dokutan 528 159 893ms 30 Aug 2025 334th jerrandolph 528 363 260ms 29 Sep 2025 335th OllieBoyne 🇬🇧 526 151 30ms 6 Jun 2024 336th commandz0 🇺🇸 523 152 26ms 3 Jun 2024 337th wh3n3v3r 🇨🇿 520 153 51ms 12 Nov 2024 338th bac0id 517 237 2ms 24 Jun 2024 339th msbranicky 516 372 244ms 14 Aug 2024 340th Yax42 🇫🇷 515 261 860ms 16 Oct 2025 341st dokutan 509 160 439ms 5 Jun 2024 342nd olleicua 🇺🇸 497 132 46ms 25 Feb 2025 343rd dokutan 497 160 18ms 5 Jun 2024 344th MeWhenI 🇻🇦 497 186 18ms 10 Jun 2024 345th Yewzir 🇧🇪 497 371 26ms 9 Jun 2024 346th dokutan 494 171 134ms 21 Jun 2025 347th h3ra993huskp 🇯🇵 490 274 662ms 30 Nov 2025 348th Yewzir 🇧🇪 489 323 6ms 9 Jun 2024 349th Shanethegamer 🇺🇸 485 228 5ms 13 Jun 2024 350th Shanethegamer 🇺🇸 483 136 42ms 1 Jun 2024 351st mousetail 🇳🇱 482 183 22ms 27 Sep 2024 352nd msbranicky 479 315 173ms 14 Aug 2024 353rd bac0id 477 284 427ms 24 Jun 2024 354th EnTerr 473 168 18ms 5 Jun 2024 355th dokutan 463 290 991ms 24 Sep 2025 356th Yewzir 🇧🇪 463 293 482ms 22 Dec 2024 357th ahmetdemirag 🇨🇾 462 172 45ms 5 Feb 2025 358th dokutan 461 191 549ms 15 Jun 2024 359th MeWhenI 🇻🇦 461 299 44ms 3 Sep 2024 360th hacker112 🇸🇪 460 213 13ms 27 Jun 2024 361st msbranicky 452 349 6ms 14 Aug 2024 362nd dokutan 447 172 24ms 27 Dec 2025 363rd Yewzir 🇧🇪 445 302 104ms 19 Dec 2024 364th yuchuehw 442 180 20ms 4 Jun 2024 365th CaedenHarper 🇨🇦 439 309 465ms 21 Oct 2025 366th BREMAUCY 🇫🇷 427 186 22ms 4 Oct 2025 367th acollett89 424 231 11ms 18 Jul 2025 368th bac0id 424 317 481ms 24 Jun 2024 369th Yewzir 🇧🇪 423 188 15ms 10 Jun 2024 370th targrik 423 245 34ms 29 Jul 2025 371st Babafaba 420 194 434ms 30 Oct 2025 372nd didion0 🇺🇸 415 236 18ms 21 Feb 2025 373rd annaproxy 414 192 199ms 28 Aug 2025 374th MeWhenI 🇻🇦 414 293 1,517ms 20 Jun 2024 375th madeforlosers 407 241 45ms 18 Oct 2024 376th dokutan 406 334 432ms 5 Jun 2024 377th coreynash 402 244 15ms 12 Jun 2024 378th Yewzir 🇧🇪 402 410 1,167ms 9 Jun 2024 379th Babafaba 401 198 21ms 30 Oct 2025 380th CaedenHarper 🇨🇦 394 249 14ms 25 Sep 2025 381st CaedenHarper 🇨🇦 392 343 739ms 7 Oct 2025 382nd LHLaurini 🇧🇷 390 314 2ms 29 Jun 2024 383rd InigoK 🇺🇸 388 205 22ms 22 Sep 2025 384th dokutan 376 273 3,395ms 23 Oct 2024 385th guilhem-roy 🇫🇷 375 212 2,297ms 22 Nov 2025 386th elgan65536 370 215 14ms 3 Oct 2024 386th anter69 🇭🇺 370 215 20ms 16 days ago 388th blaztoma 🇱🇹 367 377 145ms 28 Nov 2025 389th YAJUE114514 361 220 14ms 27 days ago 390th TobyBoyne 🇬🇧 356 223 18ms 6 Jun 2024 391st msbranicky 356 288 2,732ms 9 Jan 2025 392nd HumanoidCPU 354 230 507ms 24 days ago 393rd CaedenHarper 🇨🇦 354 237 1,438ms 30 Sep 2025 394th CaedenHarper 🇨🇦 353 231 707ms 11 Dec 2025 395th tomh1012 353 384 506ms 12 Nov 2025 396th mousetail 🇳🇱 346 230 23ms 22 Sep 2025 397th CaedenHarper 🇨🇦 343 232 22ms 11 Dec 2025 398th MichalMarsalek 🇨🇿 343 352 372ms 7 Jun 2024 399th KatieLG 🇬🇧 341 398 463ms 14 Oct 2024 400th IISResetMe 340 232 1,566ms 14 Jun 2024 First Prev 321–400 of 445 Next Last