Robert Lincoln (USA)
 
#2 4+3

Try: 1.Rb4? [2.Rb8]

But 1...Sb5!

Solution: 1.Rb6 [2.Rb8]

1...axb6 2.axb6

1...a6 2.Rxa6

Key, defense, & mate on same square

A second defense & mate on same square