The ornamental design for baseball game board, as shown and described.
FIG. 1 is a perspective view of a baseball game board, showing my new
design, the broken line showing of the game pieces is for illustrative
purposes only, and forms no part of the claimed design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof; and,
FIG. 5 is a right side elevational view thereof, the left side being
identical.