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 Kb1 draw
3 Kb3 draw
4 Kc1 draw
5 Kc3 draw
6 Kd1 draw
7 Kd2 draw
8 Rb1 draw
9 Rb3 draw
10 Rb8 draw
11 Ra2 loss in 4 half-moves
12 Kd3 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves