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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Ka1 draw
3 Ka2 draw
4 Ka4 draw
5 Ka5 draw
6 Ka6 draw
7 Kb2 draw
8 Kb4 draw
9 Kb6 draw
10 Kc1 draw
11 Kc2 draw
12 Kc4 draw
13 Kc5 draw
14 Kc6 draw
15 Ra3 draw
16 Rc3 draw
17 Rd3 draw
18 Re3 draw
19 Rf3 draw
20 Rb2 loss in 2 half-moves
21 Rg3 loss in 2 half-moves
22 Rh3 loss in 2 half-moves