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 Raa1 draw
4 Rb4 draw
5 Rc4 draw
6 Rg4 draw
7 Rga1 draw
8 Rh1 draw
9 Rh4 draw
10 Ra3 loss in 2 half-moves
11 Ra5 loss in 2 half-moves
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 Rd1 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re1 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rf4 loss in 2 half-moves