I'm trying to enter a simple (so I thought) 3-If formula, but keep getting
errors:

2 IFs work:
=IF(B1C1,B1-C1,IF(D1C1,D1-C1,""))
This formula works nicely for most of what I need, either the # or nothing.
B C D result
1 1

B C D
1 1

B C D
1

First 2 samples above result in 1, the 3rd results in "", giving me the
result I need.

However, I also need a result of the D cell (2) if B=C=D.
Trying to enter that 3rd IF isn't working. My unworking formula:

=IF(B1C1,B1-C1,IF(B1=C1=D1,D1),IF(D1C1,D1-C1),"")

The #'s will vary, but the below example is the result(2) I'd need in this
situation:
B C D
2 2 2 2

Any help for this problem would be greatly appreciated.
Thanks much,

Steve