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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kb7 draw
3 Kb8 draw
4 Kc7 draw
5 Kd7 draw
6 Kd8 draw
7 R8a5 draw
8 R8a6 draw
9 R8a7 draw
10 Re4 draw
11 R4a5 loss in 2 half-moves
12 R4a6 loss in 2 half-moves
13 R4a7 loss in 2 half-moves
14 Ra1 loss in 2 half-moves
15 Ra3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Rd4 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves
22 Ra2 loss in 1 half-moves