var correctchoices=new Array()
correctchoices[1]='d3h7'
correctchoices[2]='d3g6'
correctchoices[3]='a3c4'
correctchoices[4]='e4e5'
correctchoices[5]='b2b4'
correctchoices[6]='b3b5'
correctchoices[7]='d5f6'
correctchoices[8]='b4b5'
correctchoices[9]='c4f7'
correctchoices[10]='c1h6'
var correctanswer=new Array()
correctanswer[1]='Bd3xh7+'
correctanswer[2]='Bd3-g6+'
correctanswer[3]='Na3-c4'
correctanswer[4]='e4-e5'
correctanswer[5]='b2-b4'
correctanswer[6]='Rb3-b5'
correctanswer[7]='Nd5-f6+'
correctanswer[8]='b4-b5'
correctanswer[9]='Bc4-f7+'
correctanswer[10]='Bc1xh6'