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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb6 draw
3 Rd7 draw
4 Re7 draw
5 Rf7 draw
6 Rg7 draw
7 Kaa3 loss in 2 half-moves
8 Kaa5 loss in 2 half-moves
9 Kab3 loss in 2 half-moves
10 Kab5 loss in 2 half-moves
11 Kba3 loss in 2 half-moves
12 Kba5 loss in 2 half-moves
13 Kbb3 loss in 2 half-moves
14 Kbb5 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Kc5 loss in 2 half-moves
18 Ra7 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rh7 loss in 2 half-moves