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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Kaa1 draw
3 Kab2 draw
4 Kba1 draw
5 Kbb2 draw
6 Kc1 draw
7 Kc2 draw
8 Ra8 draw
9 Rg7 draw
10 Ka3 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Ra4 loss in 2 half-moves
13 Ra5 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rc7 loss in 2 half-moves
17 Rd7 loss in 2 half-moves
18 Re7 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rh7 loss in 2 half-moves