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

EGTB: win in 4 half-moves

# move score
1 Rd2 win in 3 half-moves
2 Rb6 draw
3 Rb7 draw
4 Rb8 draw
5 Rc2 draw
6 K1d1 loss in 2 half-moves
7 K1d2 loss in 2 half-moves
8 K1f1 loss in 2 half-moves
9 K1f2 loss in 2 half-moves
10 K2d1 loss in 2 half-moves
11 K2d2 loss in 2 half-moves
12 K2f1 loss in 2 half-moves
13 K2f2 loss in 2 half-moves
14 Kd3 loss in 2 half-moves
15 Ke3 loss in 2 half-moves
16 Kf3 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rb5 loss in 2 half-moves