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

EGTB: win in 2 half-moves

# move score
1 Ra2 win in 1 half-moves
2 Rf1 draw
3 Ka3 loss in 2 half-moves
4 Ka6 loss in 2 half-moves
5 Kaa5 loss in 2 half-moves
6 Kab4 loss in 2 half-moves
7 Kb3 loss in 2 half-moves
8 Kb6 loss in 2 half-moves
9 Kba5 loss in 2 half-moves
10 Kbb4 loss in 2 half-moves
11 Kc4 loss in 2 half-moves
12 Kc5 loss in 2 half-moves
13 Kc6 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rc1 loss in 2 half-moves
17 Rd1 loss in 2 half-moves
18 Re1 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rh1 loss in 2 half-moves