Original: Additionally , rectangles are drawn where each balkline meets a rail , called anchor spaces , which developed to stop a number of nursing techniques that exploited the fact that if the object balls straddled a balkline , no count limit was in place .
Simplified: Additionally , rectangles are drawn where each balkline meets a rail , called anchor spaces . The anchor spaces were added to the game to stop nursing techniques that developed especially for the challenges of balkline without them .