I purchased Nimzovitch's "Chess Praxis" in 1963 for $2.00. The section on blockading quickly puzzled me. I couldn't make any sense of it. One game ended in a draw, yet Nimozvitch claimed the blockade had triumphed. I soon gave up on the book. About twelve years later I attempted again to understand the blockade. It made a little more sense but much of it still puzzled me. The following game occurred after studying John Cox's "The Berlin Wall". One of the major Black ideas is establishing a light squared blockade and playing through the games reminded me of the ideas in "Chess Praxis" I would like to take another stab at Chess Praxis, but I think it would costs more than $2.00 now.