Dilemma (chess)

the dilemma is i.e. a special motive for chess, a special form of departure chess. In a consequence of chess requirements and departure chess wins one material. A dilemma occurs in tournament practice very rarely.

The dilemma became famous by the portion of Torre - Lasker, Moscow 1925. Here 24 developed after that. Course of black the following position:

Torre - Lasker, Moscow 1925
Image:chess_zhor_26.png
Image:chess_zver_26.png
Image:chess_zver_26.png
Image:chess_zhor_26.png
Diagram 1: White at the course





on the first view is white in difficulties. The Lg5 is attacked, if it pulls goes through Dxh5 the lady away lost.

Torre played 25.Lf6!. After 25. - Dxh5 (forced, because otherwise the black lady is probably lost) 26.Txg7+ to have we a dilemma.



Torre - Lasker, Moscow 1925
Image:chess_zhor_26.png
Image:chess_zver_26.png
Image:chess_zver_26.png
Image:chess_zhor_26.png
Diagram 2: Black at the course 
 26.  -   Kh8   only course 27.Txf7+ -    Departure chess 27. -    Kg8   only course 28.Tg7+ Kh8   etc.
29.Txb7+ Kg8 30.Tg7+ Kh8Torre does without Txa7+ not to bring around the black tower on a8 in the play 31.Tg5+   -    now it fetches still the lady 31. -    Kh7   The dilemma is terminated 32.Txh5 Kg6 33.Th3   Kxf6 34.Txh6+ White has now 3 multi-farmers. 
Lasker played still some courses further and gave up in the 43.Zug.


 

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