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

EGTB: win in 4 half-moves

# move score
1 Ra4 win in 3 half-moves
2 Rg3 draw
3 Rg5 draw
4 Rg6 draw
5 Rg7 draw
6 Rg8 draw
7 Bd8 loss in 2 half-moves
8 Be1 loss in 2 half-moves
9 Be7 loss in 2 half-moves
10 Bf2 loss in 2 half-moves
11 Bf6 loss in 2 half-moves
12 Bg5 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rf4 loss in 2 half-moves
18 Rg1 loss in 2 half-moves
19 Rg2 loss in 2 half-moves
20 Bg3 loss in 1 half-moves