一道数独，被难住了。。。555

pumpitup

<P>□7 □ □□□ □3□</P>
<P>5&nbsp;□□ □ 3 □&nbsp; 2 4□</P>
<P>□□&nbsp;6&nbsp; □□□&nbsp; 5□□</P>
<P>&nbsp;</P>
<P>□□□ 5 8 □&nbsp;&nbsp; □□1</P>
<P>□1 □&nbsp; 3 □ 2&nbsp; □□□</P>
<P>□□□&nbsp;□9□&nbsp; &nbsp;□□□</P>
<P>&nbsp;</P>
<P>□4 2&nbsp;&nbsp; □□□&nbsp; □□8</P>
<P>9 3 □&nbsp; □□□&nbsp; □□□</P>
<P>□□□ 9 □□&nbsp;&nbsp; 3 □5</P>

pumpitup