(Kin wa naname ni sasoe)
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.White's King is in the Yagura castle. How will you go about to attack the Yagura?
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.The second Pawn drop on 4c is quite devastating, which is again luring the Gold on 3b diagonally forward.
..... 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 +P5cThe last move in Diagram 3 is check and claiming a Gold at the same time, which leaves White almost defenseless.
Remember that dangling Pawns can lure Golds away from the King.