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

EGTB: win in 4 half-moves

# move score
1 K3a4 win in 3 half-moves
2 K5a4 win in 3 half-moves
3 Ka2 win in 3 half-moves
4 Rf5 win in 3 half-moves
5 Rf6 win in 3 half-moves
6 Ka6 draw
7 Kb5 draw
8 Kb6 draw
9 Ra4 draw
10 Rf7 draw
11 Rf8 draw
12 Rg4 draw
13 Rh4 draw
14 K3b4 loss in 2 half-moves
15 K5b4 loss in 2 half-moves
16 Kb2 loss in 2 half-moves
17 Kb3 loss in 2 half-moves
18 Rb4 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
22 Rf1 loss in 2 half-moves
23 Rf2 loss in 2 half-moves
24 Rf3 loss in 2 half-moves