A Representation for Learned Function

$$w_{0} + w_{1}\cdot bp(b) + w_{2}\cdot rp(b) + w_{3}\cdot bk(b) + w_{4}\cdot rk(b) + w_{5}\cdot bt(b) + w_{6}\cdot rt(b)$$

• bp(b): number of black pieces on board b

• rp(b): number of red pieces on b

• bk(b): number of black kings on b

• rk(b): number of red kings on b

• bt(b): number of red pieces threatened by black (i.e., which can be taken on black's next turn)

• rt(b): number of black pieces threatened by red