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 Kc1 draw
3 Kc2 draw
4 Kd1 draw
5 Kd3 draw
6 Rb3 draw
7 Rb5 draw
8 Rb6 draw
9 Rb7 draw
10 Rb8 draw
11 Rc2 draw
12 Kc3 loss in 2 half-moves
13 Ke1 loss in 2 half-moves
14 Ke2 loss in 2 half-moves
15 Ke3 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Rb1 loss in 2 half-moves