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

EGTB: win in 4 half-moves

# move score
1 Rf4 win in 3 half-moves
2 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Kc5 draw
6 Kc7 draw
7 Kcd7 draw
8 Kd5 draw
9 Kd6 draw
10 Kd8 draw
11 Ke7 draw
12 Ked7 draw
13 Kf7 draw
14 Kf8 draw
15 Ra3 draw
16 Ra5 draw
17 Ra6 draw
18 Ra7 draw
19 Ra8 draw
20 Re4 draw
21 Rg4 draw
22 Rh4 draw
23 Ra1 loss in 2 half-moves
24 Ra2 loss in 2 half-moves
25 Rb4 loss in 2 half-moves
26 Rc4 loss in 2 half-moves
27 Rd4 loss in 2 half-moves