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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Kcd4 win in 3 half-moves
4 Kd5 win in 3 half-moves
5 Rb3 win in 3 half-moves
6 Kb3 win in 5 half-moves
7 Kc5 win in 5 half-moves
8 Ra3 draw
9 Kc2 loss in 2 half-moves
10 Kd2 loss in 2 half-moves
11 Kdd4 loss in 2 half-moves
12 Ke2 loss in 2 half-moves
13 Ke3 loss in 2 half-moves
14 Ke4 loss in 2 half-moves
15 Rc1 loss in 2 half-moves
16 Rc2 loss in 2 half-moves