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 Kc7 draw
11 Kc8 draw
12 Ra1 draw
13 Rb5 draw
14 Rc1 draw
15 Rd1 draw
16 Rh1 draw
17 Kc6 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Rf1 loss in 2 half-moves
23 Rg1 loss in 2 half-moves