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 Kb7 draw
3 Kcc7 draw
4 Kcd7 draw
5 Kdd7 draw
6 Ra8 draw
7 Rb1 draw
8 Rb2 draw
9 Rb6 draw
10 Rb7 draw
11 Kdc7 loss in 2 half-moves
12 Ke7 loss in 2 half-moves
13 Ke8 loss in 2 half-moves
14 Rb3 loss in 1 half-moves
15 Rb5 loss in 1 half-moves