You could collapse all 0 (empty) tiles making it look like this:
{| border="1" cellspacing="0" cellpadding="3" style="text-align:center;"
|R || R || X R || R || R
|-
|R || X || X R || X || R
|-
|R || R || X R || R || R
|-
|R || R || X R || X || R
|-
|R || R || X R || R || R
|}R=Rock; X=Support Beamed Tile<BR>