+-----+-----+-----+-----+-----+-----+-----+
| EBF | EHG | EFG | EBE | AJD | EFJ | EIF |
+-----+-----+-----+-----+-----+-----+-----+
|  ?  | EFA | EIA | AJJ | EHC | EFI | EII |
+-----+-----+-----+-----+-----+-----+-----+
| EHD | EFD |  ?  | ACJ | EHB | EIH | EIH |
+-----+-----+-----+-----+-----+-----+-----+
| EFE | EIE | EBB | EHJ |  ?  | EBD | AJH |
+-----+-----+-----+-----+-----+-----+-----+
| EIJ |  ?  | AJB | EHI | EHG | EBG | EHA |
+-----+-----+-----+-----+-----+-----+-----+
| EIC | EBI | EHH |  ?  | EBA | AJG | EFC |
+-----+-----+-----+-----+-----+-----+-----+
|  ?  |  ?  |  ?  |  ?  |  ?  |  ?  |  ?  |
+-----+-----+-----+-----+-----+-----+-----+
                                           

1. Each of the letters represents a different digit from 0 to 9. No number can contain any leading zero.
2. J=0, G=E+A, B=C+I and, D=B-G
3. Each of the columns add up to 1990. So does each of the rows and, each of the main diagonals.