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 win in 3 half-moves
3 Kb2 win in 7 half-moves
4 Rc1 win in 7 half-moves
5 Rc2 win in 7 half-moves
6 Ka2 draw
7 Kb1 draw
8 Kb4 draw
9 Kb5 draw
10 Kb6 draw
11 Kc6 draw
12 Kd4 draw
13 Kd5 draw
14 Kd6 draw
15 Rc3 draw
16 Rd4 draw
17 Re4 draw
18 Rf4 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rh4 loss in 2 half-moves