# Alpha zero before move 8

The Alpha zero paper says that the The first set of features are repeated for each position in a T = 8-step history. So what happens before the first 8 moves? Do they just repeat the starting position?

Each set of planes represents the board position at a time-step $$t - T + 1, \dots, t$$, and is set to zero for time-steps less than $$1$$.