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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Kb2 draw
3 Kb3 draw
4 Kc2 draw
5 Kd2 draw
6 Kd3 draw
7 Ke1 draw
8 Ke2 draw
9 Kf2 draw
10 Kg1 draw
11 Kg2 draw
12 Ra8 draw
13 Rb1 draw
14 Rb3 draw
15 Rh8 draw
16 Kb4 loss in 2 half-moves
17 Kc4 loss in 2 half-moves
18 Kd4 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rb7 loss in 2 half-moves
23 Rc8 loss in 2 half-moves
24 Rd8 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg8 loss in 2 half-moves