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

EGTB: win in 4 half-moves

# move score
1 Re1 win in 3 half-moves
2 Re6 win in 5 half-moves
3 Rd4 draw
4 Re3 draw
5 Re7 draw
6 Re8 draw
7 d8=B loss in 2 half-moves
8 d8=K loss in 2 half-moves
9 d8=N loss in 2 half-moves
10 d8=Q loss in 2 half-moves
11 d8=R loss in 2 half-moves
12 Nf1 loss in 2 half-moves
13 Nf3 loss in 2 half-moves
14 Ng4 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Re5 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves
22 Rf4 loss in 1 half-moves