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 Ka4 draw
3 Ka7 draw
4 Kaa5 draw
5 Kab6 draw
6 Kb4 draw
7 Kb7 draw
8 Kba5 draw
9 Kbb6 draw
10 Kc4 draw
11 Kc5 draw
12 Kc6 draw
13 Ra3 draw
14 Rc3 draw
15 Rd3 draw
16 Rh3 draw
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Re3 loss in 2 half-moves
20 Rf3 loss in 2 half-moves
21 Rg3 loss in 2 half-moves