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

EGTB: win in 4 half-moves

# move score
1 Rd4 win in 3 half-moves
2 Kd4 win in 5 half-moves
3 Kb2 draw
4 Kb3 draw
5 Kb4 draw
6 Kc2 draw
7 Kc4 draw
8 Kd2 draw
9 Kd3 draw
10 Ra1 draw
11 Ra2 draw
12 Ra7 draw
13 Ra8 draw
14 Rg4 draw
15 Rh4 draw
16 Ra5 loss in 2 half-moves
17 Ra6 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Rf4 loss in 2 half-moves