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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kb8 win in 3 half-moves
3 Kc3 win in 3 half-moves
4 Rb7 win in 3 half-moves
5 Rc3 win in 3 half-moves
6 Rb8 win in 7 half-moves
7 Kc7 draw
8 Kd7 draw
9 Kd8 draw
10 Ra3 draw
11 Rb4 draw
12 Rb5 draw
13 Rb6 draw
14 Kc2 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Kd2 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Ke2 loss in 2 half-moves
19 Ke3 loss in 2 half-moves
20 Ke4 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves