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

EGTB: win in 2 half-moves

# move score
1 Rf4 win in 1 half-moves
2 Kc2 draw
3 Kc3 draw
4 Kc4 draw
5 Kd2 draw
6 Ke2 draw
7 Ra4 draw
8 Rb4 draw
9 Rc4 draw
10 Re1 draw
11 Re2 draw
12 Re3 draw
13 Re5 draw
14 Re6 draw
15 Re7 draw
16 Re8 draw
17 Rg4 draw
18 Rh4 draw
19 Kd4 loss in 2 half-moves
20 Ke3 loss in 2 half-moves
21 Rd4 loss in 2 half-moves