var correctchoices=new Array()
correctchoices[1]='d1d4'
correctchoices[2]='c3d5'
correctchoices[3]='h7g8'
correctchoices[4]='c3d5'
correctchoices[5]='d3h7'
correctchoices[6]='d1d3'
correctchoices[7]='e2e3'
correctchoices[8]='c2c3'
correctchoices[9]='e4c6'
correctchoices[10]='a4b6'
var correctanswer=new Array()
correctanswer[1]='Qd1xd4'
correctanswer[2]='Nc3xd5'
correctanswer[3]='Bh7-g8+'
correctanswer[4]='Nc3xd5'
correctanswer[5]='Bd3-h7+'
correctanswer[6]='Qd1-d3'
correctanswer[7]='Qe2-e3'
correctanswer[8]='c2-c3'
correctanswer[9]='Qe4xc6+'
correctanswer[10]='Na4-b6+'