  Employing the Polyakov extended Nambu-Jona-Lasinio model, we determine the
net-baryon number fluctuations of magnetized three-flavor quark matter. We show
that the magnetic field changes the nature of the strange quark transition from
crossover to first-order at low temperatures. In fact, the strange quark
undergoes multiple first-order phase transitions and several critical end
points emerge in the phase diagram.
