The pair provides the information on the relationship between USDZAR and USDNOK movement. The daily chart showed clearly that USDZAR would come under pressure and it explained why USDNOK moved to 10.1100 area quickly.
The 4-hourly is bit overdone and we should see back towards 1.7850 short-term. This means USDZAR will recover upwards, and lesser up for USDNOK. This is only an information and trading it is best with NOKZAR pair, if one has. Otherwise it means the margins are larger for using both USD legs.