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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Rb8 win in 1 half-moves
3 Rf4 win in 1 half-moves
4 Kb5 draw
5 Kb6 draw
6 Kc7 draw
7 Rb7 draw
8 Rc4 draw
9 Rd4 draw
10 Re4 draw
11 Kc5 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves
22 Kb7 loss in 1 half-moves