LudÄ k Pachman suggested that Capablanca , who was unused to losing games or to any other type of setback , became depressed over his unnecessary loss of the eleventh game , a long , gruelling endgame , featuring errors by both players . LudÄ k Pachman suggested that Capablanca , who was unaccustomed to losing games or to any other type of setback , became depressed over his unnecessary loss of the eleventh game , a long , gruelling endgame , featuring errors by both players .