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 Kd2 draw
7 Kd3 draw
8 Ra8 draw
9 Rb2 draw
10 Rb3 draw
11 Rc8 draw
12 Rd8 draw
13 Re8 draw
14 Rh8 draw
15 Kd1 loss in 4 half-moves
16 Kb3 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves