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 Rd4 win in 3 half-moves
4 Re4 win in 3 half-moves
5 Ra4 draw
6 Rf4 draw
7 Rg2 draw
8 Rg7 draw
9 Rg8 draw
10 Kb6 loss in 2 half-moves
11 Kb7 loss in 2 half-moves
12 Kb8 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 Kcc6 loss in 2 half-moves
16 Kcd7 loss in 2 half-moves
17 Kd5 loss in 2 half-moves
18 Kd8 loss in 2 half-moves
19 Kdc6 loss in 2 half-moves
20 Kdd7 loss in 2 half-moves
21 Ke5 loss in 2 half-moves
22 Ke6 loss in 2 half-moves
23 Ke7 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rg3 loss in 2 half-moves
26 Rg5 loss in 2 half-moves
27 Rg6 loss in 2 half-moves
28 Rh4 loss in 2 half-moves