ompetitive. It takes time to transfer data to and from GPUs and TPUs; therefore, neural network evaluations need to be processed in batches, which acts in tension with PUCT as a very sequential process, dependent on the previous result to make the next decision. Research into parallelizing tree search has provided valuable results, including <a href="https://arxiv.org/pdf/1810.11755v5.pdf">virtual exploration (Liu et al., 2020)</a> and <a href="https://translate.google.com/translate?sl=en&amp;tl=en&amp;u=ht