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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kb1 draw
3 Kb2 draw
4 Kc1 draw
5 Kc3 draw
6 Rb1 draw
7 Rb2 draw
8 Rb3 draw
9 Rc8 draw
10 Rd8 draw
11 Kd1 loss in 4 half-moves
12 Kd2 loss in 4 half-moves
13 Re8 loss in 4 half-moves
14 Kb3 loss in 2 half-moves
15 Kd3 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves
22 Ra8 loss in 1 half-moves