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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kc4 win in 3 half-moves
3 Rb1 win in 3 half-moves
4 Rb2 win in 3 half-moves
5 Rb4 win in 3 half-moves
6 Ka2 win in 7 half-moves
7 Kb1 win in 7 half-moves
8 Kc2 win in 7 half-moves
9 Kd2 win in 7 half-moves
10 Kd3 win in 7 half-moves
11 Ra5 win in 7 half-moves
12 Rb3 win in 7 half-moves
13 Kab2 draw
14 Kb3 draw
15 Kcb2 draw
16 Kd4 draw
17 Rb6 draw
18 Rc5 draw
19 Rd5 draw
20 Rh5 draw
21 Rb7 loss in 2 half-moves
22 Rb8 loss in 2 half-moves
23 Re5 loss in 2 half-moves
24 Rf5 loss in 2 half-moves
25 Rg5 loss in 2 half-moves