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

EGTB: win in 4 half-moves

# move score
1 Rd5 win in 3 half-moves
2 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Kb8 draw
6 Kc4 draw
7 Kc6 draw
8 Kc7 draw
9 Kd4 draw
10 Kd5 draw
11 Kd6 draw
12 Kd7 draw
13 Kd8 draw
14 Re3 draw
15 Re4 draw
16 Re6 draw
17 Re7 draw
18 Re8 draw
19 Kb4 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Re2 loss in 2 half-moves
22 Rf5 loss in 2 half-moves
23 Rg5 loss in 2 half-moves
24 Rh5 loss in 2 half-moves