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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rc8 win in 3 half-moves
3 Kb1 draw
4 Kb2 draw
5 Kc2 draw
6 Kcd1 draw
7 Kcd2 draw
8 Ked1 draw
9 Ked2 draw
10 Kf1 draw
11 Ra1 draw
12 Ra2 draw
13 Ra6 draw
14 Ra7 draw
15 Rd8 draw
16 Re8 draw
17 Ke2 loss in 2 half-moves
18 Kf2 loss in 2 half-moves
19 Ra3 loss in 2 half-moves
20 Ra4 loss in 2 half-moves
21 Ra5 loss in 2 half-moves
22 Rf8 loss in 2 half-moves
23 Rg8 loss in 2 half-moves
24 Rh8 loss in 2 half-moves