chess puzzle solving contest:(2)

winner's prize 500+es black has a Q and K against white's K,B and N. the puzzle is to find a fortress position for WHITE and thn prove that Black can't win from dat position, whoevr hv to move it is. NOTE:-for any query pls ask me. hv a gud luck

for solution pls see game no.693 ,, no participant so no prizes

I am not too good in playing chess on the web, more comfortable on at home..

wc chess lovers