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 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Kc6 draw
6 Kc8 draw
7 Kd6 draw
8 Kd7 draw
9 Kd8 draw
10 Ra4 draw
11 Rb5 draw
12 Rb6 draw
13 Rb7 draw
14 Rb8 draw
15 Rc4 draw
16 Rd4 draw
17 Rh4 draw
18 Rb1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Re4 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rg4 loss in 2 half-moves