Once the reader spots the tsuke-koshi tesuji of , reading out the rest is very easy. Of course, for those who never seen such a move before, then would not be very obvious. Note that unlike the usual tsuke-koshi play, this tsuke-koshi of is not followed by a cut.
If plays below , then connects the stone back and threatens to cut at . When connects, destroys the eye on the edge.
If makes a hane, then blocks. is forced to connect, and connects too. The edge is a five-in-a-row on the second edge, which gurantees an eye there, so White lives.