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 Ra4 draw
14 Rb3 draw
15 Rb5 draw
16 Rf4 draw
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Rg4 loss in 2 half-moves
23 Rh4 loss in 2 half-moves