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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Rb6 win in 1 half-moves
3 Re1 draw
4 Kc7 loss in 2 half-moves
5 Kc8 loss in 2 half-moves
6 Ra1 loss in 2 half-moves
7 Rb2 loss in 2 half-moves
8 Rb3 loss in 2 half-moves
9 Rb4 loss in 2 half-moves
10 Rc1 loss in 2 half-moves
11 Rd1 loss in 2 half-moves
12 Rf1 loss in 2 half-moves
13 Rg1 loss in 2 half-moves
14 Rh1 loss in 2 half-moves
15 Kaa7 loss in 1 half-moves
16 Kab7 loss in 1 half-moves
17 Kba7 loss in 1 half-moves
18 Kbb7 loss in 1 half-moves
19 Rb7 loss in 1 half-moves