In the part 4, I talked about naming trump when, as the dealer, you only hold one card from the suit that is turned up. The pick-up will give you two trump. As long as you also hold a green ace this hand is a potential point maker. Keep in mind that for the hand to be completed successfully, every opportunity must be given to your partner to take a trick.
However, that changes if the ace is in next. Why should that make a difference you ask? Part of the reason is the fact that the suit of 'next' loses a card to the trump suit. There are only five cards in next whereas the green suits have six. This significantly increases the chance of next being trumped.
The dealer is in the West position and turned up the queen of hearts. North has a nice bid in next if dealer passes plus a possible euchre if they pick it up. They make the correct call by passing. East and South both pass. The dealer(W) picks up the queen and discards the 9 of spades.
North starts off the hand by playing the ace of spades. East follows with the king, and South plays the queen. The dealer/maker(W) takes the trick with the queen of hearts. One trump is now gone and the team making trump have the first trick.
Next the maker(W) leads the ace of diamonds. North follows suit with the king. East throws off a 10 of clubs and South plays the 10 of diamonds. This is their second trick.
Now, the maker(W) is hoping his partner can take a trick and he leads the queen of clubs. North trumps in with the 9 of hearts. East plays the jack and South plays the ace of clubs. Two trump played. The opponents have one trick.
North, after taken the last trick with the 9 and knowing his queen of diamonds is a boss card leads the right. This pulls all remaining trump, which gives the opponents the last two tricks. It also gives them two points for the euchre.
The dealer sits in the north position and turns up the king of diamonds. The bid is passed back and he picks it up.
East leads the 9 of spades South takes the trick with the queen of spades. West follows suit with the 10. North throws off the jack of clubs. The bidding team takes the first trick.
After taking the trick with the queen, South leads the 10 of diamonds (trump) back to his partner(N). West follows suit with the 9. The maker(N) plays the king and East takes the trick with the ace. Both teams now both have a trick.
Now East leads back the queen of clubs. South throws away the 9 of hearts. West takes the trick with the ace of clubs. The maker(N) has to follow suit and plays the 10 of clubs. This gives the opponents their second trick. Being that West still holds the top trump. - It's an euchre time.