Read Monte Carlo Tree Search: A Review of Recent Modifications and Applications, by Maciej Swiechowski, Konrad Godlewski, Bartosz Sawicki, and Jacek Ma ´ ndziuk, ´ arXiv:2103.04931. Report on one or more of the following ideas for MCTS. Is the idea more help for minimax search or for MCTS? For what kinds of applications is the idea good for? 

a. Transposition tables 

b. History heuristic 

c. Opening books 

d. Action reduction 

e. Early termination