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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Rf4 draw
3 Rg4 draw
4 Rh4 draw
5 K7b7 loss in 2 half-moves
6 K7b8 loss in 2 half-moves
7 K8b7 loss in 2 half-moves
8 K8b8 loss in 2 half-moves
9 Ka6 loss in 2 half-moves
10 Kb6 loss in 2 half-moves
11 Ra4 loss in 2 half-moves
12 Rb1 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rd4 loss in 2 half-moves
20 Re4 loss in 2 half-moves