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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Kc2 draw
3 Kc3 draw
4 Kc4 draw
5 Kd2 draw
6 Kde2 draw
7 Ke1 draw
8 Ke3 draw
9 Kf2 draw
10 Kfe2 draw
11 Kg1 draw
12 Kg2 draw
13 Ra8 draw
14 Rb1 draw
15 Rb2 draw
16 Rb3 draw
17 Rc8 draw
18 Rd8 draw
19 Rh8 draw
20 Kd4 loss in 2 half-moves
21 Ke4 loss in 2 half-moves
22 Rb5 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rb7 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