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

EGTB: win in 4 half-moves

# move score
1 R7a5 win in 3 half-moves
2 Rb1 win in 15 half-moves
3 Rc1 win in 15 half-moves
4 Kb7 draw
5 Kd7 draw
6 R1a2 draw
7 R1a3 draw
8 R1a5 draw
9 R7a2 draw
10 R7a3 draw
11 Rb7 draw
12 Rd1 draw
13 Kb6 loss in 2 half-moves
14 Kb8 loss in 2 half-moves
15 Kc6 loss in 2 half-moves
16 Kc8 loss in 2 half-moves
17 Kd6 loss in 2 half-moves
18 Kd8 loss in 2 half-moves
19 R1a4 loss in 2 half-moves
20 R1a6 loss in 2 half-moves
21 R7a4 loss in 2 half-moves
22 R7a6 loss in 2 half-moves
23 Ra8 loss in 2 half-moves
24 Re1 loss in 2 half-moves
25 Rf1 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves