Solutions to Problems on Page 45 o. I Kt e5—c6 ch. The check is by the Queen ( a discovered check) and the Knight move wins Black's Queen.
b. 1 P c6 X P b7 ch. If I . . . Pa6X B b5; 2 P b7 X R a8, becoming a Queen.
c. 1 R g7 x Kt d7 ch K h8—g8 3 R g7 x ? c7 ch K h8—g8 2 R d7—g 7 ch! 4 R c7—g7 ch K g8—h8 Forces the King back into 5 R g7 x B b7 ch K h8—g8
the discovered check. 6 R b7 x Q a7 completing
White must interrupt the line of the Queen on the sixth rank, else Black answers . . . Q d6—h6.
And the game is drawn by perpetual check. This is a fortunate result for White since he is so much material behind. It also teaches us another way to draw a game. ( So far we have learned two others: 1 When neither party has sufficient material to win—for example, King and Bishop against King; 2 Stalemate.)
There is another way in which a game, according to the FIDE * rules, is a draw: "When a position has occurred three times with the same player to move, said player may claim a draw." This is interpreted in the United States to mean either player. The purpose of the rule is to prevent a player in a tournament where there is a time limit, from gaining too much time and thereby doing away with the time limit. You will notice that neither player is forced to claim the draw if he does not want it.
0 Fédération Internationale des Echecs (International Chess Federation)
Double check in cases of discovered check where the obstructing piece also checks the opposing King, we have a "double check " This is the most deadly type of check, for the King must move. In Diagrams c and d we have examples of "Philidor s
white black black black
white white black
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