# How does Monte Carlo Tree Search UCT exploitation value change based on perspective?

In this blog toward the end, the author writes the following:

For the sake of my question, let’s assume that a terminal state gives a reward of +1 for a win and -1 for a loss.

When the author says “for any two consecutive nodes this perspective is opposite,” does that mean that if $$Q_i$$ is positive (for example, 4) for player A at a given node, the same node will have the negative of that value for player B (-4 in my hypothetical)?

Do I need to compute two statistics to store the node value (one for each player) or can I simply store statistics for one player and flip the sign at every consecutive node?