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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rc1 win in 3 half-moves
3 Kb7 draw
4 Kb8 draw
5 Kc7 draw
6 Kcd7 draw
7 Kcd8 draw
8 Ked7 draw
9 Ked8 draw
10 Kf8 draw
11 Ra2 draw
12 Ra3 draw
13 Ra7 draw
14 Ra8 draw
15 Rd1 draw
16 Re1 draw
17 Ke7 loss in 2 half-moves
18 Kf7 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Ra5 loss in 2 half-moves
21 Ra6 loss in 2 half-moves
22 Rf1 loss in 2 half-moves
23 Rg1 loss in 2 half-moves
24 Rh1 loss in 2 half-moves