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

EGTB: win in 4 half-moves

# move score
1 Rc3 win in 3 half-moves
2 Rd3 win in 3 half-moves
3 Kb7 win in 5 half-moves
4 Kc7 win in 5 half-moves
5 Kd3 win in 5 half-moves
6 Kd7 win in 11 half-moves
7 Kb8 draw
8 Kd8 draw
9 Kf2 draw
10 Kf3 draw
11 Ra3 draw
12 Rb1 draw
13 Rb8 draw
14 Kd2 loss in 2 half-moves
15 Kd4 loss in 2 half-moves
16 Ke2 loss in 2 half-moves
17 Ke4 loss in 2 half-moves
18 Kf4 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rb5 loss in 2 half-moves
22 Rb6 loss in 2 half-moves
23 Rb7 loss in 2 half-moves