Stalemate

If a player, without being in check, cannot make any move which would not get his King into check, he is said to be STALEMATE. In this case the game is considered a draw. Diagram 7 shows an example.

White on the move, although his forces are much inferior, can draw the game by checking with the Rook on f3. Black cannot very well make a move with his King in reply, as then White's Rook would take the Queen. Black, therefore, must capture the Rook with the Queen and with this move he stalemates White, as the latter has no move left which would not bring his King into check.


       +---------------------------------------+
     8 |    |    |    |    |    |    |    |    |
       |---------------------------------------|
     7 |    |    |    |    |    |    |    |    |
       |---------------------------------------|
     6 |    |    |    |    |    |    |    |    |
       |---------------------------------------|
     5 |    |    |    |    |    |    |    |    |
       |---------------------------------------|
     4 |    |    |    |    |    |    |    |    |
       |---------------------------------------|
     3 |    |    |    | #Q |    |    |    | #K |
       |---------------------------------------|
     2 |    |    |    |    |    | ^R |    |    |
       |---------------------------------------|
     1 |    |    |    |    | #R | ^Kt| ^K |    |
       +---------------------------------------+
         a    b    c    d    e    f    g    h

                Diagram 7.

If it were Black's move he would easily win. In fact he has two different ways of checkmating White in three moves. One of them would be to take the Knight with the Rook, attacking the King and forcing White's Rook to recapture as the King has no square to go to; then to give check with the Queen on g3 forcing White's King to h1 and enabling the mate with the Queen on g2 or h2.

The other way would be to start with the check on g3. As White's Knight is pinned he cannot capture the Queen.

       +---------------------------------------+
     8 |    |    |    |    |    |    | #K |    |
       |---------------------------------------|
     7 |    |    |    |    |    |    | #P |    |
       |---------------------------------------|
     6 |    |    |    |    |    |    |    |    |
       |---------------------------------------|
     5 |    |    |    |    |    |    |    |    |
       |---------------------------------------|
     4 |    |    |    |    | ^Q |    |    |    |
       |---------------------------------------|
     3 |    | #Q |    |    |    |    | ^P |    |
       |---------------------------------------|
     2 | #P |    |    |    |    |    |    | ^P |
       |---------------------------------------|
     1 |    |    |    |    |    |    |    | ^K |
       +---------------------------------------+
         a    b    c    d    e    f    g    h

                Diagram 8

Interposing the Rook on g2 would not help either as the Queen would simply take him at the same time checkmating the King. White's only move is, therefore, to play the King into the corner, and Black then mates by first taking the Knight and then moving the Queen to g2 or h2.

Perpetual Check

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