Studies awarded for the Polish Chess Federation tournament 2020.


Gady Costeff comments on his study:

The main idea of this study is a rare theme called a 'Holst promotion', which is part of the logical school.
White's main plan is to reach the positional draw of nb-qq but in the tries on moves 1 and 2, black defeats this by promoting to the stronger(!) knight. 
In the solution white defeats black's plan by choosing a move order that excludes a knight promotion, forcing black to promote the weaker(!) queen, with the aforementioned positional draw.
In amost all studies and problems showing the Holst theme, white forces black to promote a knight, to exclude a later queen promotion, whereas here the paradoxical reverse occurs.