From: Manabu Terao <Manabu.Terao <at> JAPAN <dot> SUN <dot> COM>
Date: 9 apr 1999
Subject: Shogi strength drill - #23

Dear Shogi Fans,

Here is Problem #23.

Manabu Terao(on behalf of ISPS)


Problem #23

This problem is the position right after P1e and Px1e.
Black has 3 Pawns in hand. There must be something
effective if you have 3 Pawns in hand. You should
have an eye on the edge.


   9    8    7    6    5    4    3    2    1
+--------------------------------------------+       White in hand:
|    |    |    |    |    | wK |    |    | wL |  a   +------------------+
+--------------------------------------------+      |                  |
|    |    |    |    |    |    | wG | wB |    |  b   |                  |
+--------------------------------------------+      +------------------+
|    |    |    |    | wP | wS | wN | wP |    |  c
+--------------------------------------------|
|    |    |    |    |    | wP | wP |    |    |  d
+--------------------------------------------+
|    |    |    |    |    |    |    |    | wP |  e
+--------------------------------------------+
|    |    |    |    |    | bP | bP |    |    |  f
+--------------------------------------------+
|    |    |    |    | bP | bS | bN |    |    |  g
+--------------------------------------------+      Black in hand:
|    |    |    |    |    |    |    | bR |    |  h   +------------------+
+--------------------------------------------+      | PPP              |
|    |    |    |    |    |    |    |    | bL |  i   |                  |
+--------------------------------------------+      +------------------+



Answer #23

   9    8    7    6    5    4    3    2    1
+--------------------------------------------+       White in hand:
|    |    |    |    |    | wK |    |    |    |  a   +------------------+
+--------------------------------------------+      | PPP              |
|    |    |    |    |    |    | wG | wB |    |  b   |                  |
+--------------------------------------------+      +------------------+
|    |    |    |    | wP | wS | wN | wP |    |  c
+--------------------------------------------|
|    |    |    |    |    | wP | wP |    | bR |  d
+--------------------------------------------+
|    |    |    |    |    |    |    |    | wP |  e
+--------------------------------------------+
|    |    |    |    |    | bP | bP |    |    |  f
+--------------------------------------------+
|    |    |    |    | bP | bS | bN |    |    |  g
+--------------------------------------------+      Black in hand:
|    |    |    |    |    |    |    |    |    |  h   +------------------+
+--------------------------------------------+      | LP               |
|    |    |    |    |    |    |    |    | bL |  i   |                  |
+--------------------------------------------+      +------------------+

The answer is P*1c, Lx1c, P*1d, Lx1d, P*2d, Px2d, Rx2d, P*2c, Rx1d.

Point : There must be something in the edge if you have 3 Pawns in hand.

The proveb say "There must be somthing in the edge if you have 3 Pawns
in hand."  The position is right after P1e and Px1e.

The one who drops a Pawn on 1d and then makes his Lance run by Lx1e is
a beginner. He will be annoyed by White's defending response of P*1b.

Drop a Pawn on 1c. If White neglect it, your Lx1e aiming at P1b+ will
be fine. If White respond it by Bx1c, Lx1e will encourage Black.

After White respond your P*1c by Lx1c, make the Lance isolated to Lx1d by
sacrificing a Pawn of P*1d and capture it by the sequence of P*2d, Px2d,
Rx2d, P*2c and Rx1d which will promises you to promote the Rook by R1b+.

This is the tactic of activating a Rook both vertically and horizontally.
If you think of the tactic showed in the answer at a glance, you are no
longer a beginner.

End