Reversi in all languages in chars. 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 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 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 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 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 Chars Time Submitted 301st Shanethegamer 🇺🇸 574 202 107ms 13 Jun 2024 302nd edsrzf 🇳🇿 572 241 48ms 4 Apr 2025 303rd bac0id 572 259 79ms 24 Jun 2024 304th bizy-coder 571 139 31ms 1 Jun 2024 304th cros107 🇦🇺 571 139 29ms 19 Jun 2024 306th error256 567 90 5ms 4 Sep 2024 307th davecame 567 140 21ms 16 Jul 2024 307th snoozingnewt 🇺🇸 567 140 13ms 11 hours ago 309th MostParsingVex 565 238 346ms 23 Jul 2024 310th Yewzir 🇧🇪 563 268 183ms 9 Jun 2024 311th snoozingnewt 🇺🇸 559 252 111ms 8 hours ago 312th dokutan 554 133 47ms 15 Aug 2024 313th Shanethegamer 🇺🇸 551 152 1,066ms 1 Jun 2024 314th Shanethegamer 🇺🇸 548 189 7ms 28 Sep 2024 315th msbranicky 547 278 8ms 11 Aug 2024 316th MeWhenI 🇻🇦 545 155 138ms 3 Aug 2024 317th commandblockguy 🇺🇸 543 147 569ms 1 Sep 2025 318th Shanethegamer 🇺🇸 540 171 94ms 13 Jun 2024 319th dokutan 538 182 13ms 15 Jun 2025 320th dokutan 537 172 30ms 1 Jul 2024 321st dokutan 528 159 988ms 30 Aug 2025 322nd OllieBoyne 🇬🇧 526 151 28ms 6 Jun 2024 323rd jerrandolph 526 363 255ms 29 Sep 2025 324th bac0id 524 237 2ms 24 Jun 2024 325th commandblockguy 🇺🇸 522 152 27ms 3 Jun 2024 326th wh3n3v3r 🇨🇿 519 153 50ms 12 Nov 2024 327th Yax42 🇫🇷 515 261 402ms 16 Oct 2025 328th msbranicky 513 372 295ms 14 Aug 2024 329th madex 🇩🇪 503 247 2ms 10 Jun 2024 330th Yewzir 🇧🇪 501 323 6ms 9 Jun 2024 331st dokutan 499 160 487ms 5 Jun 2024 332nd olleicua 🇺🇸 497 132 40ms 25 Feb 2025 333rd MeWhenI 🇻🇦 497 186 20ms 10 Jun 2024 334th Yewzir 🇧🇪 497 371 33ms 9 Jun 2024 335th dokutan 496 160 18ms 5 Jun 2024 336th dokutan 494 171 124ms 21 Jun 2025 337th Shanethegamer 🇺🇸 485 228 6ms 13 Jun 2024 338th Shanethegamer 🇺🇸 483 136 57ms 1 Jun 2024 339th mousetail 🇳🇱 482 183 23ms 27 Sep 2024 340th msbranicky 479 315 161ms 14 Aug 2024 341st bac0id 477 284 356ms 24 Jun 2024 342nd EnTerr 473 168 19ms 5 Jun 2024 343rd msbranicky 464 349 10ms 14 Aug 2024 344th dokutan 463 290 400ms 24 Sep 2025 345th Yewzir 🇧🇪 463 293 580ms 22 Dec 2024 346th ahmetdemirag 🇨🇾 462 172 47ms 5 Feb 2025 347th dokutan 461 191 560ms 15 Jun 2024 348th MeWhenI 🇻🇦 461 299 46ms 3 Sep 2024 349th hacker112 🇸🇪 460 213 12ms 27 Jun 2024 350th h3ra993huskp 🇯🇵 445 302 377ms 9 Jun 2024 350th Yewzir 🇧🇪 445 302 96ms 19 Dec 2024 352nd yuchuehw 441 180 22ms 4 Jun 2024 353rd CaedenHarper 🇨🇦 439 309 368ms 21 Oct 2025 354th BREMAUCY 🇫🇷 427 186 21ms 4 Oct 2025 355th acollett89 424 231 10ms 18 Jul 2025 356th bac0id 424 317 351ms 24 Jun 2024 357th targrik 423 245 34ms 29 Jul 2025 358th Yewzir 🇧🇪 422 188 19ms 10 Jun 2024 359th didion0 🇺🇸 415 236 16ms 21 Feb 2025 360th annaproxy 414 192 197ms 28 Aug 2025 361st MeWhenI 🇻🇦 414 293 1,413ms 20 Jun 2024 362nd Babafaba 411 194 369ms 21 days ago 363rd madeforlosers 406 241 45ms 18 Oct 2024 364th dokutan 406 334 354ms 5 Jun 2024 365th Yewzir 🇧🇪 402 410 227ms 9 Jun 2024 366th Babafaba 401 198 21ms 21 days ago 367th coreynash 401 244 16ms 12 Jun 2024 368th LHLaurini 🇧🇷 396 314 2ms 29 Jun 2024 369th CaedenHarper 🇨🇦 393 249 12ms 25 Sep 2025 370th CaedenHarper 🇨🇦 392 343 406ms 7 Oct 2025 371st InigoK 🇺🇸 387 205 22ms 22 Sep 2025 372nd dokutan 376 273 3,535ms 23 Oct 2024 373rd elgan65536 369 215 15ms 3 Oct 2024 374th TobyBoyne 🇬🇧 356 223 20ms 6 Jun 2024 375th msbranicky 356 288 2,545ms 9 Jan 2025 First Prev 301–375 of 426 Next Last