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

EGTB: win in 4 half-moves

# move score
1 Rf4 win in 3 half-moves
2 Rf5 win in 3 half-moves
3 Ra1 win in 5 half-moves
4 Rb1 win in 5 half-moves
5 Rc1 win in 5 half-moves
6 Rf3 win in 7 half-moves
7 Ka4 draw
8 Ka5 draw
9 Ka6 draw
10 Kbb4 draw
11 Kbc4 draw
12 Kcb4 draw
13 Kcc4 draw
14 Kd4 draw
15 Kd5 draw
16 Rf2 draw
17 Rg1 draw
18 Rh1 draw
19 Kbb6 loss in 2 half-moves
20 Kbc6 loss in 2 half-moves
21 Kcb6 loss in 2 half-moves
22 Kcc6 loss in 2 half-moves
23 Kd6 loss in 2 half-moves
24 Rd1 loss in 2 half-moves
25 Re1 loss in 2 half-moves
26 Rf6 loss in 2 half-moves
27 Rf7 loss in 2 half-moves
28 Rf8 loss in 2 half-moves