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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Ra4 draw
3 Rc4 draw
4 Rd4 draw
5 Re4 draw
6 Rf4 draw
7 Rg2 draw
8 Rg5 draw
9 Rg6 draw
10 Rg7 draw
11 Ka7 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Kb8 loss in 2 half-moves
14 Rg1 loss in 2 half-moves
15 Rg3 loss in 2 half-moves
16 Rg8 loss in 2 half-moves
17 Rh4 loss in 2 half-moves