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 Ka2 draw
3 Kb1 draw
4 Kb2 draw
5 Kd4 draw
6 Kd5 draw
7 Kd6 draw
8 Kf4 draw
9 Kf5 draw
10 Kf6 draw
11 Rc4 draw
12 Rd4 draw
13 Re1 draw
14 Re2 draw
15 Re3 draw
16 Rf4 draw
17 Rg4 draw
18 Rh4 draw
19 Ke6 loss in 1 half-moves
20 Rb4 loss in 1 half-moves