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 Kb5 win in 3 half-moves
3 Kd5 win in 3 half-moves
4 Kd6 win in 3 half-moves
5 Rb8 win in 3 half-moves
6 Ka3 draw
7 Ka5 draw
8 Kb3 draw
9 Kd7 draw
10 Ke5 draw
11 Ke7 draw
12 Ra8 draw
13 Rc1 draw
14 Rc6 draw
15 Rd8 draw
16 Re8 draw
17 Kf5 loss in 2 half-moves
18 Kf6 loss in 2 half-moves
19 Kf7 loss in 2 half-moves
20 Rc2 loss in 2 half-moves
21 Rc3 loss in 2 half-moves
22 Rc4 loss in 2 half-moves
23 Rc5 loss in 2 half-moves
24 Rc7 loss in 2 half-moves
25 Rf8 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves