«Hay que conocer las fortalezas, al igual que las aperturas»

por ChessBase Shop - la tienda online de ChessBase
23/09/2024 – Si Ud. no se conoce al dedillo las variantes de apertura, podría quedar condenado al naufragio desde el comienzo de la partida. Por otra parte, si no sabe cómo construir una fortaleza, acabará perdiendo algunas de sus partidas sin que hubiese sido necesario. En la edición más reciente de la revista ChessBase Magazine, Dorian Rogozenco inició su serie La fortaleza", que poco a poco se convertirá en una colección sistemática de trampas clásicas. En el nuevo número CBM #221, presenta dos motivos relacionados del final alfil y peón vs. peón. El ex entrenador de la selección alemana comienza explicando los motivos en el vídeo. Le siguen nada menos que cinco vídeos interactivos en los que puedes poner a prueba tus habilidades de construcción de forma lúdica. ¡Eche un vistazo a la muestra de lectura gratuita del ChessBase Magazine CBM de esta semana!

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"The fortress"  - muestra gratuita de la revista digital ChessBase Magazine #221

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In the second part of his new series, Dorian Rogozenco presents two closely related fortress motifs. Both times the attacker is a bishop up, in the first case the pawns are facing each other on h6 and h7 (or a6 and a7): 

In the second case, the pawn pair is merely shifted to the b- or g-file:

In both cases - provided the defender has reached one of the saving squares with the king - these are fortresses. In the second example, the defender must know a few of the attackers tricks, especially if the bishop has the option of sacrificing itself for the opponent’s pawn. The former coach of the German national team presents the finer points in his introductory video.

Fortress or not? Spassky-Fischer 1972

Following the introduction, Rogozenco makes a small digression: did Bobby Fischer have the chance to build a fortress in the first game of the 1972 World Championship match against Boris Spassky? 

Couldn't he have simply brought his king to c8 instead of the text move 50...a5 and thus  saved himself with a draw? It almost looks like it, because with a slightly different pawn constellation – with the white pawn on a5 instead of on a4 – we would have one of the fortresses on the board that Rogozenco discusses in the introductory video.

But there is just this one small difference. With the pawn on a4, White can create a "Zugzwang" position in which Black has to advance his a-pawn. White then plays Kd6 or Kd7, wins Black's a-pawn and then the game by advancing his own a-pawn.

Interactive training videos

If you really want to memorise the two fortress motifs, you should definitely play through the five interactive videos with which Dorian Rogozenco concludes his article. Here is one of the more advanced training questions (interactive video 3):

Black to move and draw – if you know the fortress motif, the solution to the problem is almost ‘obvious’. Have fun with Dorian Rogozenco's new column!

Tip: If you subscribe to ChessBase Magazine as a download, you already have full access to CBM #221 as a ChessBase Book with your ChessBase account. Simply log in to ChessBase  Books with your ChessBase account. If you have purchased CBM #221 on DVD, unlock the ChessBase Book at the same place using the serial number from your booklet (on page 2)!

Highlights of CBM #221

From the Biel 2024 Chess Festival to a universal setup against the Dutch and Jan Markos' "Practical Tips for the Tournament Player" to the series "The Fortress" with Dorian Rogozenco:

Over 5 hours of video playing time with Daniel King, Rainer Knaak, Jan Markos, Mihail Marin, Karsten Mueller, Oliver Reeh, Robert Ris, Dorian Rogozenco, Ivan Sokolov and Nico Zwirs!

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