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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Rb3 win in 3 half-moves
3 Rc3 win in 3 half-moves
4 Ka6 draw
5 Kaa8 draw
6 Kab7 draw
7 Kb6 draw
8 Kba8 draw
9 Kbb7 draw
10 Rd3 draw
11 Rh1 draw
12 Rh2 draw
13 Rh4 draw
14 Rh5 draw
15 Kc7 loss in 2 half-moves
16 Kc8 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rg3 loss in 2 half-moves
20 Rh6 loss in 2 half-moves
21 Rh7 loss in 2 half-moves
22 Rh8 loss in 2 half-moves