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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Kb7 draw
3 Kb8 draw
4 Kcc7 draw
5 Kcd8 draw
6 Kdc7 draw
7 Kdd8 draw
8 Ke7 draw
9 Ke8 draw
10 Ra5 draw
11 Rb1 draw
12 Rb7 draw
13 Rb8 draw
14 Rh5 draw
15 Kc6 loss in 2 half-moves
16 Kd6 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rc5 loss in 2 half-moves
22 Rd5 loss in 2 half-moves
23 Re5 loss in 2 half-moves
24 Rf5 loss in 2 half-moves
25 Rg5 loss in 2 half-moves