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

EGTB: win in 2 half-moves

# move score
1 Rd4 win in 1 half-moves
2 Kb2 draw
3 Kc2 draw
4 Kd1 draw
5 Kd2 draw
6 Rb8 draw
7 Rc8 draw
8 Rd3 draw
9 Re8 draw
10 Kb1 loss in 4 half-moves
11 Ra8 loss in 4 half-moves
12 Rd1 loss in 2 half-moves
13 Rd2 loss in 2 half-moves
14 Rd5 loss in 2 half-moves
15 Rd6 loss in 2 half-moves
16 Rd7 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves