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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kc2 draw
3 Kc3 draw
4 Kd2 draw
5 Kd4 draw
6 Kd7 draw
7 Kd8 draw
8 Ke2 draw
9 Ke3 draw
10 Ke7 draw
11 Ra1 draw
12 Ra2 draw
13 Ra3 draw
14 Ra5 draw
15 Ra8 draw
16 Rc4 draw
17 Rd4 draw
18 Re4 draw
19 Kc4 loss in 2 half-moves
20 Ke4 loss in 2 half-moves
21 Kf7 loss in 2 half-moves
22 Kf8 loss in 2 half-moves
23 Ra6 loss in 2 half-moves
24 Ra7 loss in 2 half-moves
25 Rf4 loss in 2 half-moves
26 Rg4 loss in 2 half-moves
27 Rh4 loss in 2 half-moves