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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Rc8 win in 3 half-moves
3 Ka2 draw
4 Kab1 draw
5 Kab2 draw
6 Kc2 draw
7 Kcb1 draw
8 Kcb2 draw
9 Kd1 draw
10 Kd2 draw
11 Rb8 draw
12 Rd8 draw
13 Rh1 draw
14 Rh2 draw
15 Rh3 draw
16 Rh4 draw
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh5 loss in 2 half-moves
21 Rh6 loss in 2 half-moves
22 Rh7 loss in 2 half-moves