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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 301st error256 567 90 5ms 4 Sep 2024 302nd davecame 567 140 23ms 16 Jul 2024 303rd MostParsingVex 564 238 467ms 23 Jul 2024 304th Yewzir 🇧🇪 563 268 183ms 9 Jun 2024 305th dokutan 554 133 47ms 15 Aug 2024 306th Shanethegamer 🇺🇸 551 152 1,066ms 1 Jun 2024 307th Shanethegamer 🇺🇸 548 189 7ms 28 Sep 2024 308th msbranicky 547 278 9ms 11 Aug 2024 309th MeWhenI 🇻🇦 545 155 185ms 3 Aug 2024 310th commandblockguy 🇺🇸 542 147 569ms 1 Sep 2025 311th Shanethegamer 🇺🇸 540 171 94ms 13 Jun 2024 312th dokutan 537 172 30ms 1 Jul 2024 313th dokutan 537 182 18ms 15 Jun 2025 314th dokutan 528 159 1,526ms 30 Aug 2025 315th OllieBoyne 🇬🇧 526 151 34ms 6 Jun 2024 316th bac0id 524 237 2ms 24 Jun 2024 317th jerrandolph 524 363 340ms 24 days ago 318th commandblockguy 🇺🇸 522 152 28ms 3 Jun 2024 319th wh3n3v3r 🇨🇿 519 153 54ms 12 Nov 2024 320th Yax42 🇫🇷 514 261 871ms 7 days ago 321st msbranicky 511 372 277ms 14 Aug 2024 322nd madex 🇩🇪 503 247 2ms 10 Jun 2024 323rd Yewzir 🇧🇪 501 323 6ms 9 Jun 2024 324th dokutan 498 160 487ms 5 Jun 2024 325th olleicua 🇺🇸 497 132 40ms 25 Feb 2025 326th MeWhenI 🇻🇦 497 186 20ms 10 Jun 2024 327th Yewzir 🇧🇪 497 371 33ms 9 Jun 2024 328th dokutan 496 160 20ms 5 Jun 2024 329th dokutan 494 171 170ms 21 Jun 2025 330th MeWhenI 🇻🇦 487 299 71ms 3 Sep 2024 331st Shanethegamer 🇺🇸 485 228 6ms 13 Jun 2024 332nd Shanethegamer 🇺🇸 483 136 57ms 1 Jun 2024 333rd mousetail 🇳🇱 482 183 23ms 27 Sep 2024 334th msbranicky 479 315 161ms 14 Aug 2024 335th bac0id 476 284 363ms 24 Jun 2024 336th EnTerr 473 168 19ms 5 Jun 2024 337th msbranicky 464 349 10ms 14 Aug 2024 338th dokutan 463 290 570ms 24 Sep 2025 339th ahmetdemirag 🇨🇾 462 172 48ms 5 Feb 2025 340th Yewzir 🇧🇪 462 293 373ms 22 Dec 2024 341st dokutan 461 191 560ms 15 Jun 2024 342nd hacker112 🇸🇪 459 213 14ms 27 Jun 2024 343rd snoozingnewt 🇺🇸 453 176 489ms 11 Sep 2025 344th Yewzir 🇧🇪 445 302 90ms 19 Dec 2024 345th h3ra993huskp 🇯🇵 444 302 404ms 9 Jun 2024 346th yuchuehw 441 180 24ms 4 Jun 2024 346th snoozingnewt 🇺🇸 441 180 27ms 11 Sep 2025 348th CaedenHarper 🇨🇦 438 309 398ms 2 days ago 349th BREMAUCY 🇫🇷 427 186 24ms 19 days ago 350th targrik 426 245 39ms 29 Jul 2025 351st acollett89 423 231 10ms 18 Jul 2025 352nd bac0id 423 317 541ms 24 Jun 2024 353rd Yewzir 🇧🇪 422 188 16ms 10 Jun 2024 354th annaproxy 414 192 192ms 28 Aug 2025 355th didion0 🇺🇸 414 236 21ms 21 Feb 2025 356th MeWhenI 🇻🇦 414 293 1,413ms 20 Jun 2024 357th madeforlosers 406 241 43ms 18 Oct 2024 358th dokutan 405 334 391ms 5 Jun 2024 359th Yewzir 🇧🇪 402 410 227ms 9 Jun 2024 360th coreynash 401 244 17ms 12 Jun 2024 361st LHLaurini 🇧🇷 396 314 2ms 29 Jun 2024 362nd CaedenHarper 🇨🇦 393 249 15ms 25 Sep 2025 363rd CaedenHarper 🇨🇦 391 343 636ms 16 days ago 364th InigoK 🇺🇸 387 205 24ms 22 Sep 2025 365th dokutan 376 273 3,444ms 23 Oct 2024 366th elgan65536 369 215 13ms 3 Oct 2024 367th TobyBoyne 🇬🇧 356 223 20ms 6 Jun 2024 368th msbranicky 356 288 3,424ms 9 Jan 2025 369th CaedenHarper 🇨🇦 354 237 1,746ms 23 days ago 370th mousetail 🇳🇱 345 230 24ms 22 Sep 2025 371st MichalMarsalek 🇨🇿 343 352 489ms 7 Jun 2024 372nd IISResetMe 340 232 1,319ms 14 Jun 2024 373rd KatieLG 🇬🇧 340 398 370ms 14 Oct 2024 374th CaedenHarper 🇨🇦 315 253 1,067ms 25 Sep 2025 375th msbranicky 313 254 42ms 9 Aug 2024 First Prev 301–375 of 416 Next Last