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 Ka4 win in 5 half-moves
3 Ka2 draw
4 Kab2 draw
5 Kc2 draw
6 Kd2 draw
7 Kd3 draw
8 Rb1 draw
9 Rb8 draw
10 Kab4 loss in 2 half-moves
11 Kc4 loss in 2 half-moves
12 Kcb2 loss in 2 half-moves
13 Kcb4 loss in 2 half-moves
14 Kd4 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb7 loss in 2 half-moves