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

EGTB: win in 4 half-moves

# move score
1 Re1 win in 3 half-moves
2 Ra2 draw
3 Raa1 draw
4 Rb1 draw
5 Rb7 draw
6 Rc1 draw
7 Rc7 draw
8 Rd1 draw
9 Rd7 draw
10 Re7 draw
11 Rga1 draw
12 Ra3 loss in 2 half-moves
13 Ra4 loss in 2 half-moves
14 Ra5 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rf1 loss in 2 half-moves
18 Rf7 loss in 2 half-moves
19 Rg7 loss in 2 half-moves
20 Rh1 loss in 2 half-moves
21 Rh7 loss in 2 half-moves