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

EGTB: win in 4 half-moves

# move score
1 Ra5 win in 3 half-moves
2 Bb1 draw
3 Bc2 draw
4 Bg6 draw
5 Bg8 draw
6 Nb2 draw
7 Nb6 draw
8 Nc3 draw
9 Nc5 draw
10 Ra7 draw
11 Rb8 draw
12 Rc8 draw
13 Rh8 draw
14 Bd3 loss in 2 half-moves
15 Be4 loss in 2 half-moves
16 Bf5 loss in 2 half-moves
17 Ra6 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves