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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 Kb1 draw
3 Kc1 draw
4 Ra2 draw
5 Re1 draw
6 Rf1 draw
7 Rg1 draw
8 Ka2 loss in 2 half-moves
9 Ka3 loss in 2 half-moves
10 Kb3 loss in 2 half-moves
11 Kc2 loss in 2 half-moves
12 Kc3 loss in 2 half-moves
13 Ra3 loss in 2 half-moves
14 Ra5 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Ra7 loss in 2 half-moves
17 Ra8 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rc1 loss in 2 half-moves
20 Rd1 loss in 2 half-moves
21 Rh1 loss in 2 half-moves