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

EGTB: win in 2 half-moves

# move score
1 Kb3 win in 1 half-moves
2 Kb4 draw
3 Rb7 draw
4 Ra6 loss in 8 half-moves
5 Ra8 loss in 8 half-moves
6 Re7 loss in 6 half-moves
7 Ka5 loss in 4 half-moves
8 Kb5 loss in 2 half-moves
9 Ra5 loss in 2 half-moves
10 Rc7 loss in 2 half-moves
11 Rf7 loss in 2 half-moves
12 Rg7 loss in 2 half-moves
13 Rh7 loss in 2 half-moves
14 Ka3 loss in 1 half-moves
15 Rd7 loss in 1 half-moves