Chiral condensate from the Banks-Casher relation

We report on our ongoing project of determining the chiral condensate of two-flavor QCD from the Banks-Casher relation. We compute the mode number of the O(a)-improved Wilson-Dirac operator for several values of \Lambda, and we discuss different fitting strategies to extract the chiral condensate from its mass and \Lambda dependence. Our preliminary results haven been obtained at two different lattice spacings by using CLS-configurations.