You may be wondering why it took so long to translate this chapter. It's because there aren't any proper raws for it. Not yet, at least. Luckily, it was possible to stitch together a translation using various sources. However, keep in mind that this is a special case. If it becomes impossible to find raws, then this translation will have to stop. We'll see how it goes for the next chapter.
Saki ch171 (Mega)
Saki ch171 (Mediafire)