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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rc4 win in 5 half-moves
3 Rd4 win in 5 half-moves
4 Bd2 draw
5 Be3 draw
6 Bf4 draw
7 Bh6 draw
8 Ra4 draw
9 Rb1 draw
10 Rb2 draw
11 Rb3 draw
12 Ba3 loss in 4 half-moves
13 Bb2 loss in 2 half-moves
14 Bg5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves