W
This position is from the game Botvinnik-Chekhover, Moscow 1935. It is White's move, and he has to decide on how to pursue what is already a promising initiative. He has the upper hand in the centre, a strong knight on e5, and well-placed bishops all these factors together mean that he has some of the preconditions for an attack on the king, without yet having entered on any commitments. He can therefore be said to be on the threshold of the first phase and must consequently look for further...
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In this example Black is the attacker. He has already sacrificed his queen in order to reach this position, his intention being to mate White's king with a rook on hi. Doubling rooks is not a problem for Black in this position, but he is involved in a struggle for f2, which is important as a flight square for the white king. There are two methods of handling this the king can be allowed to get out and a mating net then woven round it, or the formation with the pawn at g3 and doubled rooks can...
