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

EGTB: win in 4 half-moves

# move score
1 Rd7 win in 3 half-moves
2 Ra4 draw
3 Rb4 draw
4 Rd1 draw
5 Rd5 draw
6 Rd6 draw
7 Rd8 draw
8 Rg4 draw
9 Kb7 loss in 2 half-moves
10 Kb8 loss in 2 half-moves
11 Kc7 loss in 2 half-moves
12 Kcd7 loss in 2 half-moves
13 Kcd8 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Ked7 loss in 2 half-moves
16 Ked8 loss in 2 half-moves
17 Kf7 loss in 2 half-moves
18 Kf8 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd2 loss in 2 half-moves
21 Rd3 loss in 2 half-moves
22 Re4 loss in 2 half-moves
23 Rf4 loss in 2 half-moves
24 Rh4 loss in 2 half-moves