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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 K7a7 loss in 2 half-moves
3 K7a8 loss in 2 half-moves
4 K8a7 loss in 2 half-moves
5 K8a8 loss in 2 half-moves
6 Ka6 loss in 2 half-moves
7 Ra6 loss in 2 half-moves
8 Rb1 loss in 2 half-moves
9 Rb2 loss in 2 half-moves
10 Rb3 loss in 2 half-moves
11 Rb5 loss in 2 half-moves
12 Rd6 loss in 2 half-moves
13 Re6 loss in 2 half-moves
14 Rf6 loss in 2 half-moves
15 Rg6 loss in 2 half-moves
16 Rh6 loss in 2 half-moves
17 K7c7 loss in 1 half-moves
18 K7c8 loss in 1 half-moves
19 K8c7 loss in 1 half-moves
20 K8c8 loss in 1 half-moves
21 Kc6 loss in 1 half-moves
22 Rc6 loss in 1 half-moves