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

EGTB: win in 2 half-moves

# move score
1 Kb6 win in 1 half-moves
2 Rh3 win in 1 half-moves
3 Rf4 draw
4 Ka4 loss in 2 half-moves
5 Ka6 loss in 2 half-moves
6 Kb5 loss in 2 half-moves
7 Ra4 loss in 2 half-moves
8 Rc4 loss in 2 half-moves
9 Rd4 loss in 2 half-moves
10 Re4 loss in 2 half-moves
11 Rg4 loss in 2 half-moves
12 Rh1 loss in 2 half-moves
13 Rh2 loss in 2 half-moves
14 Rh5 loss in 2 half-moves
15 Rh6 loss in 2 half-moves
16 Rh7 loss in 2 half-moves
17 Rh8 loss in 2 half-moves
18 Kb4 loss in 1 half-moves
19 Rb4 loss in 1 half-moves