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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rb2 draw
3 Rb3 draw
4 Rb5 draw
5 Rb6 draw
6 Rb7 draw
7 Rb8 draw
8 Kb3 loss in 2 half-moves
9 Kb4 loss in 2 half-moves
10 Kc4 loss in 2 half-moves
11 Kd1 loss in 2 half-moves
12 Kd3 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Ra1 loss in 2 half-moves
15 K1b2 loss in 1 half-moves
16 K1c2 loss in 1 half-moves
17 K1d2 loss in 1 half-moves
18 K3b2 loss in 1 half-moves
19 K3c2 loss in 1 half-moves
20 K3d2 loss in 1 half-moves