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 Ke2 draw
4 Kf2 draw
5 Kfg1 draw
6 Kfg2 draw
7 Kg3 draw
8 Kh1 draw
9 Kh3 draw
10 Khg1 draw
11 Khg2 draw
12 Rd2 draw
13 Rd3 draw
14 Rd7 draw
15 Ra1 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rc1 loss in 2 half-moves
18 Rd4 loss in 2 half-moves
19 Rd5 loss in 2 half-moves
20 Rd6 loss in 2 half-moves
21 Rd8 loss in 2 half-moves