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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Rb5 draw
3 Rb6 draw
4 Rb7 draw
5 Rc4 draw
6 Re4 draw
7 Rg4 draw
8 Rh4 draw
9 g1=B loss in 2 half-moves
10 g1=K loss in 2 half-moves
11 g1=N loss in 2 half-moves
12 g1=Q loss in 2 half-moves
13 g1=R loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rd4 loss in 2 half-moves
19 Rf4 loss in 2 half-moves