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 Rb4 win in 3 half-moves
3 Rb1 win in 5 half-moves
4 Rb3 win in 5 half-moves
5 Ra7 draw
6 Rb5 draw
7 Rb6 draw
8 Rd7 draw
9 Re7 draw
10 Rf7 draw
11 Kd2 loss in 2 half-moves
12 Kd3 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Ke1 loss in 2 half-moves
15 Ke4 loss in 2 half-moves
16 Kee2 loss in 2 half-moves
17 Kef2 loss in 2 half-moves
18 Kf3 loss in 2 half-moves
19 Kf4 loss in 2 half-moves
20 Kfe2 loss in 2 half-moves
21 Kff2 loss in 2 half-moves
22 Kg1 loss in 2 half-moves
23 Kg2 loss in 2 half-moves
24 Rb8 loss in 2 half-moves
25 Rc7 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rh7 loss in 2 half-moves