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

EGTB: win in 4 half-moves

# move score
1 Ke2 win in 3 half-moves
2 Rb2 win in 3 half-moves
3 Rb1 win in 5 half-moves
4 Kd1 draw
5 Kf1 draw
6 Ra3 draw
7 Rb4 draw
8 Rh3 draw
9 Kd2 loss in 2 half-moves
10 Kf2 loss in 2 half-moves
11 Rb5 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rc3 loss in 2 half-moves
16 Rd3 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rg3 loss in 2 half-moves