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

EGTB: win in 4 half-moves

# move score
1 Ra8 win in 3 half-moves
2 Ra1 win in 13 half-moves
3 Ra2 win in 17 half-moves
4 Kb6 draw
5 Rb3 draw
6 Rb6 draw
7 Rc3 draw
8 Rd3 draw
9 Kd6 loss in 6 half-moves
10 Kb5 loss in 2 half-moves
11 Kb7 loss in 2 half-moves
12 Kc5 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Kd7 loss in 2 half-moves
16 R3a4 loss in 2 half-moves
17 R3a5 loss in 2 half-moves
18 R6a4 loss in 2 half-moves
19 R6a5 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Re3 loss in 2 half-moves
22 Rf3 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rh3 loss in 2 half-moves