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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rc1 win in 5 half-moves
3 K6a7 draw
4 K8a7 draw
5 Ka5 draw
6 Ra1 draw
7 Rb2 draw
8 Rb3 draw
9 Rb4 draw
10 Re1 draw
11 Rh1 draw
12 K6b7 loss in 2 half-moves
13 K8b7 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Kb6 loss in 2 half-moves
16 Kb8 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rd1 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rg1 loss in 2 half-moves