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 Kc3 win in 5 half-moves
3 Rh3 win in 5 half-moves
4 Kb1 draw
5 Kb2 draw
6 Kb3 draw
7 Kc1 draw
8 Kcd1 draw
9 Kcd2 draw
10 Ke2 draw
11 Ked1 draw
12 Ked2 draw
13 Kf1 draw
14 Kf2 draw
15 Ra4 draw
16 Rc4 draw
17 Rg4 draw
18 Rh1 draw
19 Rh2 draw
20 Rh8 draw
21 Kd3 loss in 2 half-moves
22 Rd4 loss in 2 half-moves
23 Re4 loss in 2 half-moves
24 Rf4 loss in 2 half-moves
25 Rh5 loss in 2 half-moves
26 Rh6 loss in 2 half-moves
27 Rh7 loss in 2 half-moves