I am studying a book about chess strategy, and in the chapter concerning the d4,e4 center I have this game:
(PACHMAN, VESELY, Pragues, 1953)
r1b2rk1/pp1nqppp/2pb1n2/4p3/2PP4/2N1PN2/P1Q1BPPP/R1B1R1K1 b - - 0 11
The last move of white is 11.Re1!, and the author said black can no more play exd4 because the queen has to retreat from the column e with a loss of time.
But there is still the bishop in the column e! Is it a master subtlety? I mean that if the bishop moves, it has no threats and the black queen has time to escape from the column e...