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

EGTB: win in 4 half-moves

# move score
1 Kd2 win in 3 half-moves
2 Ka1 draw
3 Ka3 draw
4 Kab1 draw
5 Kab3 draw
6 Rb8 draw
7 Kc1 loss in 2 half-moves
8 Kc3 loss in 2 half-moves
9 Kcb1 loss in 2 half-moves
10 Kcb3 loss in 2 half-moves
11 Kd1 loss in 2 half-moves
12 Kd3 loss in 2 half-moves
13 Rb1 loss in 2 half-moves
14 Rb3 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