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

EGTB: win in 4 half-moves

# move score
1 Re1 win in 3 half-moves
2 Ke1 draw
3 Kf2 draw
4 Kfg1 draw
5 Kfg2 draw
6 Kh2 draw
7 Khg1 draw
8 Khg2 draw
9 Rd5 draw
10 Rd6 draw
11 Rd7 draw
12 Rd8 draw
13 Ke2 loss in 2 half-moves
14 Ra1 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rc1 loss in 2 half-moves
17 Rd2 loss in 2 half-moves
18 Rd3 loss in 2 half-moves
19 Rd4 loss in 2 half-moves