How To Do It
Start by holding the edges of the three chips with your finger and index finger. Your grip should be slightly above the equator of the chips, which means you’ll need to apply a bit more pressure to have a firm hold on them.
raise your ring finger so that it is just under the index finger. Pull the middle finger back out of the way for now. With the ring finger, ease the inner two chips down and away from the index finger. Keep holding the remaining chip with the thumb and index finger. As the two chips get halfway past the single chip, the middle finger comes in where the two groups of chips meet.
The index finger should almost be at the top of the single chip at this point. Pull the index finger over the top of the other two chips and the chip will follow. As the chip falls, use the index finger to guide it into position.