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

EGTB: win in 2 half-moves

# move score
1 Ra7 win in 1 half-moves
2 Kb4 draw
3 Rd4 draw
4 Re4 draw
5 Rf4 draw
6 K1a2 loss in 2 half-moves
7 K1b2 loss in 2 half-moves
8 K3a2 loss in 2 half-moves
9 K3b2 loss in 2 half-moves
10 Kb1 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Ra5 loss in 2 half-moves
13 Ra6 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rg4 loss in 2 half-moves
18 Rh4 loss in 2 half-moves