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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kd7 draw
3 Ke7 draw
4 Ke8 draw
5 Rc4 draw
6 Rg4 draw
7 Rh3 draw
8 Rh5 draw
9 Rh8 draw
10 Kc7 loss in 2 half-moves
11 Kc8 loss in 2 half-moves
12 Ra4 loss in 2 half-moves
13 Rd4 loss in 2 half-moves
14 Re4 loss in 2 half-moves
15 Rf4 loss in 2 half-moves
16 Rh1 loss in 2 half-moves
17 Rh2 loss in 2 half-moves
18 Rh6 loss in 2 half-moves
19 Rh7 loss in 2 half-moves