Reversi in Python 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 1st 4atj 1,000 82 25ms 8 Apr 2025 2nd m-tkach 🇺🇦 953 86 22ms 2 Jun 2024 2nd Steffan153 🇫🇮 953 86 21ms 21 Feb 2026 4th xsot 🇸🇬 943 87 20ms 2 Jun 2024 4th JayXon 🇺🇸 943 87 25ms 2 Jun 2024 4th pardouin 🇫🇷 943 87 21ms 12 Jul 2024 4th GrayJoKing 🇦🇺 943 87 22ms 23 Jul 2024 4th sean-niemann 🇺🇸 943 87 19ms 4 Feb 2025 4th Seek64 🇩🇪 943 87 18ms 23 May 2025 4th emgordon154 943 87 19ms 6 Jun 2025 4th kg583 🇺🇸 943 87 24ms 25 Aug 2025 12th duckyluuk 🇳🇱 882 93 39ms 15 Aug 2024 13th SirBogman 🇺🇸 863 95 27ms 1 Jun 2024 13th plcc0 863 95 33ms 11 days ago 15th hallvabo 🇳🇴 854 96 34ms 6 Jun 2024 16th error256 837 98 32ms 1 Jun 2024 17th SB-945 820 100 34ms 8 Jun 2024 18th lifthrasiir 🇰🇷 804 102 74ms 16 Nov 2024 19th snoozingnewt 🇨🇦 774 106 27ms 14 Dec 2025 20th qpwoeirut 766 107 26ms 1 Oct 2025 21st CornerMercury 🇬🇧 739 111 1,489ms 24 Nov 2025 22nd Shanethegamer 🇺🇸 719 114 26ms 8 Apr 2025 23rd albanian-laundromat 🇺🇸 701 117 65ms 17 Nov 2025 24th orthoplex 🇨🇽 678 121 25ms 1 Jun 2024 25th nwellnhof 🇩🇪 672 122 21ms 1 Jun 2024 25th MeWhenI 🇻🇦 672 122 24ms 7 Jun 2024 25th sisyphus-ppcg 🇦🇺 672 122 21ms 25 Jul 2024 28th ovs-code 🇩🇪 667 123 22ms 1 Jun 2024 28th ryyyn 🇺🇸 667 123 21ms 5 Nov 2025 30th edsrzf 🇳🇿 656 125 19ms 9 Dec 2025 31st 5cw 🇺🇸 651 126 20ms 1 Jun 2024 31st stefangimmillaro 651 126 20ms 30 Jan 2025 31st bricknellj 651 126 23ms 6 Feb 2025 31st KatieLG 🇬🇧 651 126 2,345ms 15 Sep 2025 31st Flekay 🇩🇪 651 126 15ms 15 Feb 2026 31st jusaka 651 126 14ms 7 days ago 37th AlephSquirrel 641 128 33ms 4 Jun 2024 38th ndren 636 129 258ms 11 Jul 2025 39th jatloe 617 133 377ms 28 Oct 2024 40th GolfingSuccess 🇬🇷 612 134 25ms 1 Jun 2024 41st bzijlema 🇳🇱 603 136 38ms 14 Jan 2026 42nd blaztoma 🇱🇹 594 138 37ms 11 Dec 2025 42nd Lv0Sys 🇵🇱 594 138 27ms 23 Feb 2026 44th bizy-coder 590 139 44ms 1 Jun 2024 44th cros107 🇦🇺 590 139 32ms 19 Jun 2024 46th davecame 586 140 22ms 16 Jul 2024 46th Emutis 🇱🇹 586 140 27ms 12 Dec 2025 48th OllieBoyne 🇬🇧 543 151 30ms 6 Jun 2024 49th commandz0 🇺🇸 539 152 28ms 3 Jun 2024 50th wh3n3v3r 🇨🇿 536 153 53ms 12 Nov 2024 51st StefanHabel 🇨🇦 529 155 340ms 8 days ago 52nd ZakkkkAttackkkk 🇵🇭 519 158 50ms 9 Feb 2026 52nd dokutan 519 158 22ms 26 days ago 54th EnTerr 488 168 23ms 5 Jun 2024 55th anter69 🇭🇺 480 171 30ms 20 Feb 2026 56th ahmetdemirag 🇨🇾 477 172 47ms 5 Feb 2025 57th yuchuehw 456 180 21ms 4 Jun 2024 58th BREMAUCY 🇫🇷 441 186 24ms 4 Oct 2025 58th aksyristos 441 186 21ms 13 days ago 60th Yewzir 🇧🇪 436 188 16ms 10 Jun 2024 61st annaproxy 427 192 201ms 28 Aug 2025 62nd Babafaba 414 198 22ms 30 Oct 2025 63rd InigoK 🇺🇸 400 205 26ms 22 Sep 2025 64th guilhem-roy 🇫🇷 387 212 2,323ms 22 Nov 2025 65th elgan65536 🇺🇸 381 215 16ms 3 Oct 2024 66th YAJUE114514 373 220 15ms 28 Dec 2025 67th TobyBoyne 🇬🇧 368 223 19ms 6 Jun 2024 68th mousetail 🇳🇱 357 230 32ms 22 Sep 2025 69th CaedenHarper 🇨🇦 353 232 34ms 11 Dec 2025 70th HumanoidCPU 350 234 21ms 31 Dec 2025 71st madex 🇩🇪 324 253 23ms 23 Dec 2025 72nd msbranicky 323 254 38ms 9 Aug 2024 73rd Bulmenisaurus 317 259 37ms 5 Jan 2025 74th mathisfun271 309 265 36ms 7 Oct 2024 75th alemelis 268 306 22ms 17 Oct 2024 76th klixel 🇨🇦 261 314 304ms 14 Jul 2025 77th mbittner20 251 327 18ms 28 Apr 2025 78th markusgraube 249 329 17ms 1 Jul 2024 79th FortuiteMan 🇫🇷 246 334 26ms 27 Nov 2025 80th knutae 🇳🇴 239 343 21ms 23 Jun 2024 1–80 of 95 Next Last