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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rb4 win in 3 half-moves
3 Ka2 win in 7 half-moves
4 Ka4 win in 7 half-moves
5 Kc2 win in 7 half-moves
6 Kc4 win in 7 half-moves
7 Kd2 win in 7 half-moves
8 Kd3 win in 7 half-moves
9 Kd4 win in 7 half-moves
10 Kab2 draw
11 Kab3 draw
12 Kab4 draw
13 Kcb2 draw
14 Kcb3 draw
15 Kcb4 draw
16 Ra6 draw
17 Rb1 draw
18 Rb3 draw
19 Rb5 draw
20 Rc6 draw
21 Rh6 draw
22 Rb7 loss in 2 half-moves
23 Rb8 loss in 2 half-moves
24 Rd6 loss in 2 half-moves
25 Re6 loss in 2 half-moves
26 Rf6 loss in 2 half-moves
27 Rg6 loss in 2 half-moves