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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Kaa6 draw
3 Kaa8 draw
4 Kab6 draw
5 Kab8 draw
6 Kba6 draw
7 Kba8 draw
8 Kbb6 draw
9 Kbb8 draw
10 Kc6 draw
11 Kc7 draw
12 Kc8 draw
13 Ra3 draw
14 Rb4 draw
15 Rb5 draw
16 Rc3 draw
17 Rg3 draw
18 Rh3 draw
19 Rb1 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Rd3 loss in 2 half-moves
22 Re3 loss in 2 half-moves
23 Rf3 loss in 2 half-moves