Lasker, Edward, 1885-1981, Du Mont, J. (Jules), 1881- · Philadelphia : D. McKay · leaf 32
in the following way. The pawn at Q 5 is attacked once and supported once to start with, and can be attacked by three more White units in three more moves (i R — Q i, 2 R (B 2) — Q 2, 3 B — B 2). Black can also mobilise three more units for the defence in the same number of moves (i Kt — B 4 or K… … Diag. 9. It would be obviously wrong to move the pawn to Q 6 after White’s R — Q i, because White could bring another two pieces to bear on the P, the other Rook and the Knight, whilst Black has only one more piece available for the defence, namely, his Rook. The following examples show typical…
Chess
Internet Archive · Duke University Libraries · Public domain (published before 1931). Free to use for anything.
