Click on the third or sixth rank to set the en passant target square.

EGTB: draw

# move score
1 b5 draw
2 Ra1 draw
3 Ra2 draw
4 Ra3 draw
5 Rc5 draw
6 Rd5 draw
7 Rb5 loss in 4 half-moves
8 Re5 loss in 4 half-moves
9 Ra6 loss in 2 half-moves
10 Ra7 loss in 2 half-moves
11 Ra8 loss in 2 half-moves
12 Rf5 loss in 2 half-moves
13 Rh5 loss in 2 half-moves
14 Ra4 loss in 1 half-moves
15 Rg5 loss in 1 half-moves