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

EGTB: win in 2 half-moves

# move score
1 Kb7 win in 1 half-moves
2 Rd5 win in 1 half-moves
3 Ra1 draw
4 Kb5 loss in 2 half-moves
5 Kb6 loss in 2 half-moves
6 Ra2 loss in 2 half-moves
7 Ra3 loss in 2 half-moves
8 Ra4 loss in 2 half-moves
9 Rb5 loss in 2 half-moves
10 Rc5 loss in 2 half-moves
11 Re5 loss in 2 half-moves
12 Rf5 loss in 2 half-moves
13 Rg5 loss in 2 half-moves
14 Rh5 loss in 2 half-moves
15 Ka7 loss in 1 half-moves