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 Rc4 win in 3 half-moves
3 Kg1 win in 5 half-moves
4 Kg2 win in 7 half-moves
5 Rg4 win in 7 half-moves
6 Rh1 win in 7 half-moves
7 Kb1 draw
8 Kb2 draw
9 Kc2 draw
10 Kd1 draw
11 Kd2 draw
12 Ke1 draw
13 Ke2 draw
14 Ke3 draw
15 Kf1 draw
16 Kf3 draw
17 Kg3 draw
18 Ra4 draw
19 Rh2 draw
20 Rh3 draw
21 Rh5 draw
22 Rh6 draw
23 Rd4 loss in 2 half-moves
24 Re4 loss in 2 half-moves
25 Rf4 loss in 2 half-moves
26 Rh7 loss in 2 half-moves
27 Rh8 loss in 2 half-moves