var correctchoices=new Array()
correctchoices[1]='b3b7'
correctchoices[2]='e5e6'
correctchoices[3]='f4e4'
correctchoices[4]='d2b4'
correctchoices[5]='b2e2'
correctchoices[6]='e4e6'
correctchoices[7]='b4b7'
correctchoices[8]='c2c4'
correctchoices[9]='a4c6'
correctchoices[10]='e3c3'
var correctanswer=new Array()
correctanswer[1]='Qb3xb7'
correctanswer[2]='Qe5xe6+'
correctanswer[3]='Qf4xe4'
correctanswer[4]='Qd2xb4'
correctanswer[5]='Qb2xe2'
correctanswer[6]='Qe4xe6+'
correctanswer[7]='Qb4xb7'
correctanswer[8]='Qc2xc4+'
correctanswer[9]='Qa4xc6+'
correctanswer[10]='Qe3xc3'