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 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 Chars Time Submitted 376th IISResetMe 340 232 1,319ms 14 Jun 2024 377th KatieLG 🇬🇧 340 398 370ms 14 Oct 2024 378th gigaprofisi 🇺🇸 318 308 11ms 7 days ago 379th CaedenHarper 🇨🇦 315 253 1,067ms 25 Sep 2025 380th msbranicky 313 254 42ms 9 Aug 2024 381st msbranicky 312 256 675ms 2 Jun 2024 382nd zakariamouhid 310 316 12ms 8 Jun 2024 383rd Bulmenisaurus 307 259 46ms 5 Jan 2025 384th madex 🇩🇪 306 320 12ms 6 Jun 2024 385th CaedenHarper 🇨🇦 302 263 29ms 25 Sep 2025 386th mathisfun271 300 265 30ms 7 Oct 2024 386th blaztoma 🇱🇹 300 265 27ms 12 Oct 2025 388th msbranicky 299 294 230ms 18 Sep 2024 389th Yax42 🇫🇷 276 421 189ms 7 Oct 2025 390th Yax42 🇫🇷 268 245 141ms 7 Oct 2025 391st alemelis 259 306 19ms 17 Oct 2024 392nd Flekay 🇩🇪 256 310 26ms 11 Jul 2025 393rd klixel 🇨🇦 253 314 287ms 14 Jul 2025 394th mbittner20 243 327 14ms 28 Apr 2025 395th markusgraube 241 329 18ms 1 Jul 2024 396th knutae 🇳🇴 232 343 22ms 23 Jun 2024 396th jameswmccarty 232 343 26ms 11 Oct 2024 398th snoozingnewt 🇺🇸 232 492 120ms 5 Oct 2025 399th mrmena 🇦🇺 230 636 49ms 9 Jun 2024 400th madex 🇩🇪 210 379 13ms 3 Jun 2024 401st adamnielson42 🇺🇸 209 380 18ms 16 Oct 2024 402nd FlorianCassayre 🇫🇷 201 396 56ms 1 Jun 2024 403rd croc54 197 403 15ms 3 Feb 2025 404th jtaxen 187 425 96ms 3 Jun 2024 405th FortuiteMan 🇫🇷 180 441 25ms 6 Oct 2024 406th iczelia 🇩🇪 159 499 12ms 17 days ago 407th Upload-and-View 🇺🇦 156 508 16ms 21 Aug 2025 408th two-bad 🇬🇧 153 638 15ms 10 Aug 2025 409th scpchicken 🇵🇼 150 529 13ms 1 Jun 2024 410th Jacob385 149 903 381ms 22 Jun 2024 411th hiichbindermax 146 545 15ms 4 Jun 2024 411th KatieLG-Transpiler 🇬🇧 146 545 14ms 16 Aug 2024 413th Msleizak 🇫🇷 109 725 311ms 23 Jul 2025 414th KatieLG 🇬🇧 99 3,659 59ms 9 Jun 2024 415th Zhenyu-Bo 95 833 14ms 1 Aug 2025 416th aksyristos 93 852 16ms 5 Oct 2025 417th ovs-code 🇩🇪 0 90 14ms 20 Jun 2025 418th error256 0 121 1,051ms 4 May 2025 419th aiwana 0 135 42ms 18 days ago 420th edsrzf 🇳🇿 0 170 316ms 29 May 2025 421st dokutan 0 171 66ms 28 Jun 2025 First Prev 376–421 of 421