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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 K1b1 draw
3 Ra5 draw
4 Ra6 draw
5 Ra7 draw
6 Ra8 draw
7 Re3 draw
8 Rf3 draw
9 Rg3 draw
10 K2b1 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 K1b2 loss in 1 half-moves
13 K2b2 loss in 1 half-moves
14 Rb3 loss in 1 half-moves
15 Rc3 loss in 1 half-moves
16 Rd3 loss in 1 half-moves
17 Rh3 loss in 1 half-moves