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 Kab8 draw
5 Kba6 draw
6 Kba8 draw
7 Kbb8 draw
8 Kc7 draw
9 Kc8 draw
10 Ra1 draw
11 Rb5 draw
12 Rf1 draw
13 Rg1 draw
14 Rh1 draw
15 Kab6 loss in 2 half-moves
16 Kbb6 loss in 2 half-moves
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 Rc1 loss in 2 half-moves
22 Rd1 loss in 2 half-moves
23 Re1 loss in 2 half-moves