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 Rb5 draw
3 Rf6 draw
4 Rg6 draw
5 Rh6 draw
6 Kaa2 loss in 2 half-moves
7 Kaa4 loss in 2 half-moves
8 Kab2 loss in 2 half-moves
9 Kab4 loss in 2 half-moves
10 Kba2 loss in 2 half-moves
11 Kba4 loss in 2 half-moves
12 Kbb2 loss in 2 half-moves
13 Kbb4 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Ra6 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rd6 loss in 2 half-moves
22 Re6 loss in 2 half-moves