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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Rg1 win in 1 half-moves
3 Rb6 draw
4 Rb7 draw
5 Ka5 loss in 2 half-moves
6 Ka7 loss in 2 half-moves
7 Ra1 loss in 2 half-moves
8 Rb3 loss in 2 half-moves
9 Rb4 loss in 2 half-moves
10 Rb8 loss in 2 half-moves
11 Rc1 loss in 2 half-moves
12 Rd1 loss in 2 half-moves
13 Re1 loss in 2 half-moves
14 Rf1 loss in 2 half-moves
15 Rh1 loss in 2 half-moves
16 Kb5 loss in 1 half-moves
17 Kb6 loss in 1 half-moves
18 Kb7 loss in 1 half-moves
19 Rb5 loss in 1 half-moves