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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Kb3 draw
3 Kc3 draw
4 Kd3 draw
5 Ra5 draw
6 Rb2 draw
7 Rb3 draw
8 Rb8 draw
9 Rd5 draw
10 Re5 draw
11 Rf5 draw
12 Kb1 loss in 2 half-moves
13 Kb2 loss in 2 half-moves
14 Kc1 loss in 2 half-moves
15 Kd1 loss in 2 half-moves
16 Kd2 loss in 2 half-moves
17 Ke1 loss in 2 half-moves
18 Ke2 loss in 2 half-moves
19 Kf2 loss in 2 half-moves
20 Kg1 loss in 2 half-moves
21 Kg2 loss in 2 half-moves
22 Rb4 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rb7 loss in 2 half-moves
25 Rc5 loss in 2 half-moves
26 Rg5 loss in 2 half-moves
27 Rh5 loss in 2 half-moves