This week’s example of positional transformations sees Akiba Rubinstein in action. In the diagram, position, White has more space and the better pawn centre. However, how can he best make use of this?
Rubinstein’s solution is to give up the space and pawn centre, in return for a passed d-pawn, plus an open position, where White has two bishops. The break 13.d5! achieves this. The aggressive follow-up 16.g4!, targetting the weak square at f7, forces further concessions from Black, and by move 20, the latter is forced to surrender the exchange, after which Rubinstein’s technique mops up.