alue, despite minutes of thinking time. The second is that even after discovering value, it may take too long for the visit count of the better move to catch up and prove its value with high certainty. SBLE-PUCT helps to overcome these flaws at high NPS by directing otherwise-wasted visits into under-explored sub-trees, and does this incrementally throughout search so that less catch-up is required. Additionally, when tuning virtual exploration and loss, and exploration incentives, there comes a point where