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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Ra2 win in 5 half-moves
3 Ka5 draw
4 Ka7 draw
5 Rc2 draw
6 Rd1 draw
7 Rd3 draw
8 Rd4 draw
9 Re2 draw
10 Kb5 loss in 2 half-moves
11 Kb6 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Rd5 loss in 2 half-moves
14 Rd6 loss in 2 half-moves
15 Rd7 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Rf2 loss in 2 half-moves
18 Rg2 loss in 2 half-moves
19 Rh2 loss in 2 half-moves