A number of novel findings emerge from the present study that complement cognitively-oriented research on chess. Most importantly, gender stereotypes can have a greatly debilitating effect on female players leading to a 50% performance decline when playing against males. Interestingly, this disadvantage is completely removed when players are led to believe that they are playing against a woman. This may, in part, occur because women choose a more defensive style when playing with men.

A second and more general message of our study is that self-confidence and a win-oriented promotion motivation contribute positively to chess performance. Since women show lower chess-specific self-esteem and a more cautious regulatory focus than males, possibly as a consequence of widely held gender stereotypes, this may at least in part explain their worldwide underrepresentation and underperformance in chess.

Thus, women seem disadvantaged not because they are lacking cognitive or spatial abilities, but because they approach chess competitions with lesser confidence and with a more cautious attitude than their male opponents. Hence, a motivational perspective may be better suited to understand (and prevent) the underperformance of women in the ‘ultimate intellectual sport.’