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 Ka4 draw
3 Ka5 draw
4 Kb5 draw
5 Kc5 draw
6 Rc4 draw
7 Re2 draw
8 Re3 draw
9 Re6 draw
10 Re7 draw
11 Re8 draw
12 Rf4 draw
13 Rg4 draw
14 Rh4 draw
15 Ka3 loss in 2 half-moves
16 Kb3 loss in 2 half-moves
17 Kc3 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Re1 loss in 2 half-moves
20 Re5 loss in 2 half-moves