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

EGTB: win in 6 half-moves

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