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

EGTB: win in 4 half-moves

# move score
1 Kb1 win in 3 half-moves
2 Kc1 win in 3 half-moves
3 Kc3 win in 3 half-moves
4 Kcb3 win in 3 half-moves
5 Rb1 win in 3 half-moves
6 Ka4 win in 7 half-moves
7 Kd2 win in 7 half-moves
8 Rb8 win in 7 half-moves
9 Kb4 win in 9 half-moves
10 Ra2 win in 9 half-moves
11 Ka2 draw
12 Kab3 draw
13 Kd1 draw
14 Rb3 draw
15 Rb7 draw
16 Kd3 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves