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

EGTB: win in 4 half-moves

# move score
1 Ra4 win in 3 half-moves
2 Rb4 draw
3 Rc4 draw
4 Rf5 draw
5 Rf6 draw
6 Rf7 draw
7 Rf8 draw
8 Rg4 draw
9 Rh4 draw
10 Ka1 loss in 2 half-moves
11 Ka3 loss in 2 half-moves
12 Kab1 loss in 2 half-moves
13 Kab2 loss in 2 half-moves
14 Kab3 loss in 2 half-moves
15 Kc1 loss in 2 half-moves
16 Kc3 loss in 2 half-moves
17 Kcb1 loss in 2 half-moves
18 Kcb2 loss in 2 half-moves
19 Kcb3 loss in 2 half-moves
20 Kd1 loss in 2 half-moves
21 Kd2 loss in 2 half-moves
22 Kd3 loss in 2 half-moves
23 Rd4 loss in 2 half-moves
24 Re4 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