No and sometimes. You know that the middle dark 3 above you has a 2 and the light 4 means that 2 can only be North or Northwest from the 3. The middle dark 4 above the light 4 only needs a 1 and it can't be West of the light 4 because the dark 3's last 1 is either West or East from it. So West of the light 4 is empty. This means that the last 1 for the middle dark 4 is West from it so North and Northwest from the middle dark 3 above the middle dark 4 is also empty. Which means that the last 1 for the middle dark 5 is Northwest from it. This means that there is a 1 below the left of the 2 light 3's. Depending on the numbers revealed you might now have to chance it!