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

EGTB: win in 4 half-moves

# move score
1 b5 win in 3 half-moves
2 Rd1 draw
3 Rd3 draw
4 Rd4 draw
5 Rf8 draw
6 Re8 loss in 4 half-moves
7 Ra8 loss in 2 half-moves
8 Rb8 loss in 2 half-moves
9 Rc8 loss in 2 half-moves
10 Rd2 loss in 2 half-moves
11 Rd5 loss in 2 half-moves
12 Rd6 loss in 2 half-moves
13 Rd7 loss in 2 half-moves
14 Rg8 loss in 2 half-moves
15 Rh8 loss in 2 half-moves