ConnectFour Studio is a رایگان, offline Connect Four برنامه: play against the computer, analyse positions و run engine-versus-engine matches. It is the Android version of the desktop برنامه of the same name, با the same engine, levels, help و texts. Engine • Perfect play: a Kotlin port of the BitBully solver by Markus Thill (bitboards, MTD(f), transposition table) با the 12-ply opening book با distances – identical results to the original C++ engine • 15 levels: 0 Loser (joke level), 1 Random … 14 Perfect, defined by (p, s, w): share of perfect moves, loss guard و win guard • Two custom levels User (1) و User (2) با شما own (p, s, w) Analysis • Evaluation row under the board: win / draw / loss برای every column و the number of stones until the end • Permanent analysis after every move, one-off evaluation of همه moves • Info box با depth, value, nodes, time, speed و source (book or computed) بازی modes • Human vs. computer (the computer can also open), two players, computer plays out the position • Computer-computer match با up to 10,000 بازی‌ها, colour swap, three speeds, Elo difference و copyable result • Session score human vs. computer per level با Elo estimate • Random start positions با 1–9 stones و a chosen result More • 20 boards با matching stones, ghost stone, drop animation, last move و winning line marked • Load و save positions as .4gp files (سازگار با the desktop version), quick save • Detailed help با search و zoom, user رابط کاربری in English, German, French, Spanish, Dutch و Italian • Portrait و landscape, phones و tablets, صفحه‌کلید shortcuts با a hardware صفحه‌کلید • No permissions, بدون اینترنت access, بدون تبلیغات, بدون ردیابی License: GNU AGPL v3. Engine: BitBully by Markus Thill (AGPL v3), opening book: bitbully-databases (MIT).