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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Ra2 draw
3 Rc2 draw
4 Rd3 draw
5 Rd4 draw
6 Rd5 draw
7 Rd8 draw
8 Rg2 draw
9 Rh2 draw
10 K1a2 loss in 2 half-moves
11 K1b2 loss in 2 half-moves
12 K3a2 loss in 2 half-moves
13 K3b2 loss in 2 half-moves
14 Ka4 loss in 2 half-moves
15 Kb1 loss in 2 half-moves
16 Kb3 loss in 2 half-moves
17 Kb4 loss in 2 half-moves
18 Rd1 loss in 2 half-moves
19 Rd6 loss in 2 half-moves
20 Rd7 loss in 2 half-moves
21 Re2 loss in 2 half-moves
22 Rf2 loss in 2 half-moves