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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rh1 loss in 4 half-moves
3 Ka7 loss in 2 half-moves
4 Kb7 loss in 2 half-moves
5 Kb8 loss in 2 half-moves
6 Ra1 loss in 2 half-moves
7 Rc1 loss in 2 half-moves
8 Rd3 loss in 2 half-moves
9 Rd4 loss in 2 half-moves
10 Rd6 loss in 2 half-moves
11 Rd7 loss in 2 half-moves
12 Rd8 loss in 2 half-moves
13 Rf1 loss in 2 half-moves
14 Rg1 loss in 2 half-moves
15 Rd2 loss in 1 half-moves
16 Rd5 loss in 1 half-moves
17 Re1 loss in 1 half-moves