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 Kf7 win in 5 half-moves
3 Rf4 win in 5 half-moves
4 Rg6 win in 5 half-moves
5 Kf8 win in 7 half-moves
6 Kb7 draw
7 Kb8 draw
8 Kc8 draw
9 Kcd7 draw
10 Kcd8 draw
11 Ke7 draw
12 Ked7 draw
13 Ked8 draw
14 Ra4 draw
15 Rg5 draw
16 Rg7 draw
17 Rg8 draw
18 Rh4 draw
19 Kb6 loss in 2 half-moves
20 Kc6 loss in 2 half-moves
21 Kd6 loss in 2 half-moves
22 Rc4 loss in 2 half-moves
23 Rd4 loss in 2 half-moves
24 Re4 loss in 2 half-moves
25 Rg1 loss in 2 half-moves
26 Rg2 loss in 2 half-moves
27 Rg3 loss in 2 half-moves