Vocabulary: kin=Gold, naname ni=diagonally, sasoe (imperative)=to lure

A Gold can move diagonally forward, but needs two moves to get back to where it was.

White in hand: nothing
  9  8  7  6  5  4  3  2  1
+---------------------------+
| *  *  *  *  *  *  * wN wL |a
| *  *  * bR bP+ * wG wK  * |b
| *  *  *  *  * wG wS wP wP |c
| *  *  *  *  * wP wP  *  * |d
| *  *  *  *  *  *  *  *  * |e
| *  *  *  *  *  *  *  *  * |f
| *  *  *  *  *  *  *  *  * |g
| *  *  *  *  *  *  *  *  * |h
| *  *  *  *  *  *  *  *  * |i
+---------------------------+
Black in hand: P2 
Diagram 1. 

P*5d

A Pawn dropped like this is called a dangling Pawn. It is very effective here.

P*4b is another possibility. However, you will need two more moves (P-4a+ and +P-4b) to make it work. If you play P*5d in the first place, your next intended move, P-5c+, will do the job more quickly.

So, in response to P*5d, White will have to play Gx5d: a Gold lured diagonally forward.

P*4c (Diagram 2)

White in hand: P 
  9  8  7  6  5  4  3  2  1
+---------------------------+
| *  *  *  *  *  *  * wN wL |a
| *  *  * bR bP+ * wG wK  * |b
| *  *  *  *  * bP wS wP wP |c
| *  *  *  * wG wP wP  *  * |d
| *  *  *  *  *  *  *  *  * |e
| *  *  *  *  *  *  *  *  * |f
| *  *  *  *  *  *  *  *  * |g
| *  *  *  *  *  *  *  *  * |h
| *  *  *  *  *  *  *  *  * |i
+---------------------------+
Black in hand: nothing
Diagram 2. Up to P*4c.

.....   Gx4c
+P-5c   (Diagram 3)

White in hand: P2 
  9  8  7  6  5  4  3  2  1
+---------------------------+
| *  *  *  *  *  *  * wN wL |a
| *  *  * bR  *  *  * wK  * |b
| *  *  *  * bP+wG wS wP wP |c
| *  *  *  * wG wP wP  *  * |d
| *  *  *  *  *  *  *  *  * |e
| *  *  *  *  *  *  *  *  * |f
| *  *  *  *  *  *  *  *  * |g
| *  *  *  *  *  *  *  *  * |h
| *  *  *  *  *  *  *  *  * |i
+---------------------------+
Black in hand: nothing
Diagram 3. Up to +P5c

Remember that dangling Pawns can lure Golds away from the King.