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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Ka5 draw
3 Kb4 draw
4 Kb5 draw
5 Rc4 draw
6 Rd2 draw
7 Re4 draw
8 Rf4 draw
9 Ka3 loss in 2 half-moves
10 Kb3 loss in 2 half-moves
11 Rd1 loss in 2 half-moves
12 Rd3 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 Rg4 loss in 2 half-moves
18 Rh4 loss in 2 half-moves