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

EGTB: win in 2 half-moves

# move score
1 Rd4 win in 1 half-moves
2 Ka2 draw
3 Ka4 draw
4 Kb2 draw
5 Kb3 draw
6 Kb4 draw
7 Rc4 draw
8 Re1 draw
9 Re2 draw
10 Re3 draw
11 Re8 draw
12 Rf4 draw
13 Rg4 draw
14 Rh4 draw
15 Ra4 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Re7 loss in 2 half-moves