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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Ka2 draw
3 Ka4 draw
4 Kb2 draw
5 Kb4 draw
6 Rb2 draw
7 Rb3 draw
8 Rb4 draw
9 Rb7 draw
10 Rc6 draw
11 Rf6 draw
12 Re6 loss in 20 half-moves
13 Kb3 loss in 6 half-moves
14 Ra6 loss in 6 half-moves
15 Rb5 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rd6 loss in 2 half-moves
18 Rg6 loss in 1 half-moves
19 Rh6 loss in 1 half-moves