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

EGTB: draw

# move score
1 Ra4 draw
2 Rc1 draw
3 Ka4 loss in 2 half-moves
4 Ka6 loss in 2 half-moves
5 Kb4 loss in 2 half-moves
6 Kb5 loss in 2 half-moves
7 Kb6 loss in 2 half-moves
8 Ra2 loss in 2 half-moves
9 Ra3 loss in 2 half-moves
10 Rb1 loss in 2 half-moves
11 Rf1 loss in 2 half-moves
12 Rg1 loss in 2 half-moves
13 Rd1 loss in 1 half-moves
14 Re1 loss in 1 half-moves
15 Rh1 loss in 1 half-moves