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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Ra2 draw
3 Ra3 draw
4 Ra4 draw
5 Raa1 draw
6 Rb5 draw
7 Rf1 draw
8 Rf5 draw
9 Rga1 draw
10 Rh1 draw
11 Rh5 draw
12 Ra6 loss in 2 half-moves
13 Ra7 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rc1 loss in 2 half-moves
16 Rc5 loss in 2 half-moves
17 Rd1 loss in 2 half-moves
18 Rd5 loss in 2 half-moves
19 Re1 loss in 2 half-moves
20 Re5 loss in 2 half-moves
21 Rg5 loss in 2 half-moves