Because MTD(f) only uses zero-window searches, while Alpha-Beta and NegaScout also use wide window searches, MTD(f) is more efficient.
In 1999 Illinois Terminal was created in downtown Champaign which serves as both a transit hub for the MTD and a connection between the MTD, Amtrak and intercity bus lines.
It is part of the mtd-utils package, unrelated to the above, proprietary, closed source, Windows software.
With the help of thrust vectoring nozzles, this aircraft can perform the famous Pugachev's Cobra maneuver.