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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Re5 win in 1 half-moves
3 Re6 win in 1 half-moves
4 Re7 draw
5 Re8 draw
6 Kc7 loss in 2 half-moves
7 Kc8 loss in 2 half-moves
8 Kd7 loss in 2 half-moves
9 Ra1 loss in 2 half-moves
10 Rc1 loss in 2 half-moves
11 Rd1 loss in 2 half-moves
12 Re2 loss in 2 half-moves
13 Re3 loss in 2 half-moves
14 Re4 loss in 2 half-moves
15 Rf1 loss in 2 half-moves
16 Rg1 loss in 2 half-moves
17 Rh1 loss in 2 half-moves
18 Ke7 loss in 1 half-moves
19 Ke8 loss in 1 half-moves