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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Kb7 draw
3 Kb8 draw
4 Kc7 draw
5 Rb8 draw
6 Rc4 draw
7 Ra4 loss in 4 half-moves
8 Rd4 loss in 4 half-moves
9 Rh4 loss in 4 half-moves
10 Kd7 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Re4 loss in 1 half-moves
18 Rf4 loss in 1 half-moves
19 Rg4 loss in 1 half-moves