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 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 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 Multitap Input NFA Simulator 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 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 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 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 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 Multitap Input NFA Simulator 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 226th Kacarott 🇦🇺 693 127 266ms 4 Jun 2024 227th sisyphus-ppcg 🇦🇺 689 74 4ms 1 Jun 2024 227th SirBogman 🇺🇸 689 74 5ms 2 Jun 2024 229th albanian-laundromat 687 348 878ms 11 days ago 230th adyache 🇺🇸 683 325 803ms 21 Jun 2024 231st Shanethegamer 🇺🇸 682 221 1,366ms 1 Jun 2024 232nd Yewzir 🇧🇪 681 301 1,910ms 9 Jun 2024 233rd primo-ppcg 🇹🇭 680 75 19ms 23 Jan 2025 234th albanian-laundromat 679 117 65ms 21 days ago 235th mousetail 🇳🇱 679 183 2ms 23 Sep 2025 236th Shanethegamer 🇺🇸 679 352 578ms 10 Apr 2025 237th error256 677 97 36ms 1 Jun 2024 238th Shanethegamer 🇺🇸 676 240 228ms 14 Jun 2024 239th MeWhenI 🇻🇦 673 131 36ms 13 Aug 2024 240th Shanethegamer 🇺🇸 671 235 12ms 13 Jun 2024 241st Yewzir 🇧🇪 668 286 288ms 9 Jun 2024 242nd Yax42 🇫🇷 666 147 23ms 10 Sep 2025 243rd Shanethegamer 🇺🇸 662 148 12ms 12 Jun 2024 244th MeWhenI 🇻🇦 661 205 380ms 1 Jun 2024 245th ovs-code 🇩🇪 659 121 652ms 2 Jul 2024 246th Shanethegamer 🇺🇸 658 214 117ms 1 Jun 2024 247th orthoplex 🇨🇽 657 121 22ms 1 Jun 2024 248th KasperKivimaeki 🇫🇮 657 189 3ms 3 Sep 2025 249th rucin93 🇵🇱 655 129 134ms 31 Oct 2024 250th Shanethegamer 🇺🇸 655 207 365ms 12 Jun 2024 251st scpchicken 🇵🇼 654 78 6ms 3 Jun 2024 252nd MeWhenI 🇻🇦 654 122 550ms 1 Jun 2024 253rd Yewzir 🇧🇪 653 233 7ms 9 Jun 2024 253rd rucin93 🇵🇱 653 233 45ms 17 hours ago 255th MeWhenI 🇻🇦 652 216 123ms 1 Jun 2024 256th nwellnhof 🇩🇪 651 122 18ms 1 Jun 2024 256th MeWhenI 🇻🇦 651 122 24ms 7 Jun 2024 256th sisyphus-ppcg 🇦🇺 651 122 18ms 25 Jul 2024 259th kritixilithos 647 114 35ms 1 Jun 2024 259th error256 647 114 32ms 16 Jun 2024 259th MeWhenI 🇻🇦 647 114 36ms 15 Jul 2025 262nd MeWhenI 🇻🇦 646 79 6ms 1 Jun 2024 263rd ovs-code 🇩🇪 646 123 18ms 1 Jun 2024 263rd ryyyn 🇺🇸 646 123 26ms 5 Nov 2025 265th namelessiw 646 208 792ms 16 Oct 2025 266th xsot 🇸🇬 638 125 549ms 2 Jun 2024 266th SirBogman 🇺🇸 638 125 504ms 2 Jun 2024 268th Shanethegamer 🇺🇸 637 216 449ms 7 Jun 2024 269th ovs-code 🇩🇪 636 116 32ms 1 Jun 2024 269th retrohun 636 116 36ms 7 Jun 2024 271st KatieLG 🇬🇧 633 126 3,150ms 6 Oct 2025 272nd helbling 🇨🇭 632 155 15ms 1 Jun 2024 273rd MeWhenI 🇻🇦 632 295 36ms 12 Jul 2025 274th 5cw 🇺🇸 630 126 18ms 1 Jun 2024 274th stefangimmillaro 630 126 18ms 30 Jan 2025 274th bricknellj 630 126 17ms 6 Feb 2025 274th edsrzf 🇳🇿 630 126 16ms 9 Sep 2025 274th KatieLG 🇬🇧 630 126 2,640ms 15 Sep 2025 279th MeWhenI 🇻🇦 629 157 10ms 20 Jun 2024 280th Shanethegamer 🇺🇸 625 158 10ms 13 Jun 2024 281st error256 622 238 3,467ms 15 Apr 2025 282nd AlephSquirrel 621 128 30ms 4 Jun 2024 283rd AlephSquirrel 619 225 38ms 21 Oct 2024 284th MeWhenI 🇻🇦 619 255 6ms 10 Jun 2024 285th ovs-code 🇩🇪 617 137 130ms 17 Apr 2025 286th ndren 616 129 298ms 11 Jul 2025 287th emgordon154 616 150 11ms 10 Dec 2024 288th GrayJoKing 🇦🇺 612 138 142ms 14 Aug 2024 288th error256 612 138 132ms 6 May 2025 290th albanian-laundromat 606 463 16ms 18 Sep 2025 291st albanian-laundromat 600 133 462ms 10 Sep 2025 292nd retrohun 600 202 185ms 19 Aug 2024 293rd galloj 🇨🇿 599 123 28ms 9 Jun 2024 294th Shanethegamer 🇺🇸 599 189 563ms 12 Jun 2024 295th jatloe 597 133 366ms 28 Oct 2024 296th stefangimmillaro 595 124 36ms 26 days ago 297th Shanethegamer 🇺🇸 595 234 39ms 4 Oct 2024 298th Shanethegamer 🇺🇸 594 203 344ms 13 Jun 2024 299th GolfingSuccess 🇬🇷 593 134 20ms 1 Jun 2024 300th MeWhenI 🇻🇦 591 204 462ms 27 Jul 2024 First Prev 226–300 of 434 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