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

EGTB: win in 2 half-moves

# move score
1 Kb7 win in 1 half-moves
2 Rd4 win in 1 half-moves
3 Rf8 win in 1 half-moves
4 Kc1 loss in 2 half-moves
5 Kc2 loss in 2 half-moves
6 Kc7 loss in 2 half-moves
7 Kd2 loss in 2 half-moves
8 Kd7 loss in 2 half-moves
9 Ke1 loss in 2 half-moves
10 Ke2 loss in 2 half-moves
11 Rd2 loss in 2 half-moves
12 Rd3 loss in 2 half-moves
13 Rd5 loss in 2 half-moves
14 Rd6 loss in 2 half-moves
15 Rd7 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh8 loss in 2 half-moves
19 Kb8 loss in 1 half-moves