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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Kd4 draw
6 Kd5 draw
7 Kd6 draw
8 Kf4 draw
9 Kf5 draw
10 Rb4 draw
11 Rc4 draw
12 Rd4 draw
13 Re1 draw
14 Re2 draw
15 Re3 draw
16 Rf4 draw
17 Rh4 draw
18 Ke6 loss in 2 half-moves
19 Kf6 loss in 2 half-moves
20 Rg4 loss in 1 half-moves