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 Kc4 draw
3 Kd4 draw
4 Rb1 draw
5 Rb3 draw
6 Rb5 draw
7 Rb6 draw
8 Rb7 draw
9 Rb8 draw
10 Rg4 draw
11 Rh4 draw
12 Kb2 loss in 2 half-moves
13 Kb3 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Kd2 loss in 2 half-moves
16 Kd3 loss in 2 half-moves
17 Ra4 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Re4 loss in 2 half-moves