Black puts a push (position from the debut “ reverse push ”)
A bogus is a white (black) simple c5 (f4), delaying in the absence of an enemy simple a5 (h4) his checkers a7 and c7 or a7 and e7 (f2 and h2 or d2 and h2). A characteristic detail for the debuts is reverse push , push , central push .
White after 6.e: c5 pushed (position from the debut Center poke