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 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Kc6 draw
6 Kc8 draw
7 Kd6 draw
8 Kd7 draw
9 Kd8 draw
10 Rb1 draw
11 Rb2 draw
12 Rb3 draw
13 Rb7 draw
14 Rb8 draw
15 Rc5 draw
16 Rd5 draw
17 Re5 draw
18 Rf5 draw
19 Rg5 draw
20 Rh5 draw
21 Ra5 loss in 2 half-moves
22 Rb6 loss in 2 half-moves