Hello Puzzzlers, This problem is from Larry Evans' book "Chess: Beginner to Expert" available on tape from your NLS library. Note this book uses descriptive notation not algebraic. Problem 4: 8/ p4pkp/ 8/ 3B1b2/ 3b1ppP/ P1N1r1n1/ 1PP3PR/ R4QK1 Points 2 Black to mate in one.