Study of the effect of c value on the success rate for UCT type MCTS variants. The tests here are 30 s tree expansion on the same test set as in Fig. 3. Here the values of compounds in the buyable catalogue are set to 1.

MCTS variants	c value	Success rate
		Test set	Training set
UCT-V	c = 0.1	0.548	0.584
	c = 1	0.505	0.552
mUCT-V	c = 0.1	0.533	0.570
		0.564	0.602