> Throw one knife at the left wall, aimed to reflect off the wall so that the middle of the resulting spread will shoot by just behind Kaguya.
> Immediately after that first knife is thrown, throw our other knife at the floor, aimed to reflect off the floor so that the middle of the resulting spread will shoot toward Kaguya's midsection.
> Keep up the pursuit while doing these things (or resume pursuit if we have to stop to throw things).