 unlocking additional parallelism starts to decrease strength because of value dilution. SBLE-PUCT can instead capture these &quot;free&quot; visits and explore additional sub-trees without backpropagating further up the tree.</p>
        <p>Self-play and tournament play both use a prediction cache to remember recent neural network evaluations, but tournament play uses it more aggressively as a <em>transposition table</em> to save time when a position is reached in multiple different ways; for example, c4, 