In playing a lone hand, it is a great advantage to have the lead. The next best thing is to have the last play on the first trick. The elder hand or the dealer may, therefore, venture to play alone on a weaker hand than either of the other players.
When your opponent is playing alone, and trumps a suit led by yourself or your partner, take every opportunity to throw away cards of that suit upon his subsequent leads.
When, opposing a lone hand, you find that your partner throws away high cards of any particular suit, you may be sure that he holds high cards in some other suit; you should, therefore, retain to the last your highest card of the suit he throws in preference to any other card, short of an ace.
Discarding.
When the dealer takes up the trumps before the play begins, it is his duty to discard or reject a card from his hand in lieu of the one taken up. We will suppose that the ten of hearts has been turned up, and the dealer holds the king and Right Bower, with the ace and nine of clubs, and king of diamonds. The proper card to reject would be the king of diamonds. There would be no absolute certainty of its taking a trick, for the ace might be held by the opponents; whereas, retaining the ace and nine of clubs, the whole suit of clubs might be exhausted by the ace, and then the nine might be good. If the trump were one of the red suits, and the dealer held three trumps, seven of spades and seven of hearts, it would be better for him to discard the spade than the heart; for, as the dealer's strength is in the red suit, the probabilities are that the other side will be correspondingly weak, and the heart would therefore be better than the spade.
Where you have two of one suit and one of another to discard from, always discard the suit in which you have one only, for then you may have an opportunity to trump.
Leading.
Where the dealer has been assisted, it is a common practice to lead through the assisting hand, and frequently results favourably; for in the event of the dealer having but the one trump turned, a single lead of trumps exhausts his strength, and places him at the mercy of a strong plain suit. It is not, however,
always advisable to lead a trump; for, if the elder hand hold a tenace, his duty is to manœuvre so as to secure two tricks; but this is an exceptional case. The proper lead must be determined by the quality of the hand, and the purpose to be accomplished. The elder hand, holding two aces and a king, with two small trumps, would, of course, lead trump through the assisting hand; for the only hope of securing a euchre would be dependent upon the success of the non-trump suits, and they can only be made available after trumps have been exhausted.