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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kd1 draw
3 Kd2 draw
4 Kd3 draw
5 Rb1 draw
6 Rb2 draw
7 Rb4 draw
8 Kc3 loss in 16 half-moves
9 Kb2 loss in 12 half-moves
10 Kc1 loss in 10 half-moves
11 Kb1 loss in 6 half-moves
12 Ra3 loss in 6 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rc3 loss in 2 half-moves
17 Rd3 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Rf3 loss in 1 half-moves
20 Rg3 loss in 1 half-moves
21 Rh3 loss in 1 half-moves