var correctchoices=new Array()
correctchoices[1]='e4'
correctchoices[2]='c7'
correctchoices[3]='h2'
correctchoices[4]='f6'
correctchoices[5]='a1'
correctchoices[6]='e2'
correctchoices[7]='g8'
correctchoices[8]='b5'
correctchoices[9]='h4'
correctchoices[10]='c5'