Static evaluation
A static evaluation function should estimate the true value of a node
- true value = value of node if we performed exhaustive search
- need not just be ?/0/-? even if those are only final scores
- can indicate degree of position
- e.g. nodes might evaluate to +1, 0, -10
Children learn a simple evaluation function for chess
- P = 1, N = B = 3, R = 5, Q = 9, K = 1000
- Static evaluation is difference in sum of scores
- chess programs have much more complicated functions