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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Rc5 draw
3 Re7 draw
4 K7b7 loss in 2 half-moves
5 K7b8 loss in 2 half-moves
6 K8b7 loss in 2 half-moves
7 K8b8 loss in 2 half-moves
8 Ka6 loss in 2 half-moves
9 Rb7 loss in 2 half-moves
10 Rc1 loss in 2 half-moves
11 Rc2 loss in 2 half-moves
12 Rc3 loss in 2 half-moves
13 Rc4 loss in 2 half-moves
14 Rc6 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd7 loss in 2 half-moves
17 Rf7 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh7 loss in 2 half-moves