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

EGTB: win in 2 half-moves

# move score
1 Ra8 win in 1 half-moves
2 K1a2 draw
3 K1b2 draw
4 K3a2 draw
5 K3b2 draw
6 Kb1 draw
7 Kb3 draw
8 Re4 draw
9 Rf4 draw
10 Rg4 draw
11 Rh4 draw
12 Kb4 loss in 2 half-moves
13 Ra5 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Rd4 loss in 2 half-moves