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 Kb6 draw
3 Kc6 draw
4 Kd6 draw
5 Rc1 draw
6 Rc2 draw
7 Rc3 draw
8 Rd4 draw
9 Re4 draw
10 Rg4 draw
11 Kb4 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rh4 loss in 2 half-moves