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

EGTB: win in 4 half-moves

# move score
1 Rc7 win in 3 half-moves
2 g8=B draw
3 Nb2 draw
4 Nb6 draw
5 Nc3 draw
6 Nc5 draw
7 Ra7 draw
8 Rb7 draw
9 Rd4 draw
10 g8=K loss in 2 half-moves
11 g8=N loss in 2 half-moves
12 g8=Q loss in 2 half-moves
13 g8=R loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Rd2 loss in 2 half-moves
16 Rd3 loss in 2 half-moves
17 Rd5 loss in 2 half-moves
18 Rd6 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rf7 loss in 2 half-moves