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

EGTB: win in 4 half-moves

# move score
1 Rd4 win in 3 half-moves
2 Rf5 win in 5 half-moves
3 Rf6 win in 5 half-moves
4 Rf7 win in 5 half-moves
5 Ka7 draw
6 Kab6 draw
7 Kab7 draw
8 Kc7 draw
9 Kcb6 draw
10 Kcb7 draw
11 Kd5 draw
12 Kd6 draw
13 Re4 draw
14 Rf8 draw
15 Rg4 draw
16 Rh4 draw
17 Ka5 loss in 2 half-moves
18 Kab5 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Kcb5 loss in 2 half-moves
21 Kd7 loss in 2 half-moves
22 Ra4 loss in 2 half-moves
23 Rb4 loss in 2 half-moves
24 Rc4 loss in 2 half-moves
25 Rf1 loss in 2 half-moves
26 Rf2 loss in 2 half-moves
27 Rf3 loss in 2 half-moves