Understanding Hand Analysis

Generally, Deep Finesse will do a complete analysis of a deal in only a few seconds, churning out a solution that is guaranteed to be correct. Some deals, however, are particularly hard and might require a full minute to resolve if you have a slow PC. Exploring new play lines is usually quick once a deal has been fully solved because many of the intermediate positions associated with the deal have been stored in memory. Analysis time is directly related to the speed of your PC. For example, a 300 Mhz machine will solve a hand 3 times faster than a 100 Mhz machine.

Deals that the computer finds hard are not necessarily deals a human would find hard, but usually if Deep Finesse struggles a human would too. Interestingly, Deep Finesse will often solve hands that humans find very hard in sub-second time (e.g. the demo deals).

At each turn, Deep Finesse considers every possible legal play and labels it as a winner or loser. For example, at trick one Deep Finesse might first consider what happens when West leads the heart king. If it turns out this lead allows the defense to set the contract, Deep Finesse marks the heart king as a winning play for West. Then Deep Finesse continues by exploring what happens when other cards are led labeling them in turn with the appropriate mark.

For slow deals, unexplored card plays are temporarily marked with a until Deep Finesse gets around to resolving them. If you are only interested in exploring certain lines, you need not wait for Deep Finesse to finish resolving the hand completely. For example, if you click on a card that still has a on it, Deep Finesse plays that card and resumes the search starting with the next player's hand.