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 Rc2 draw
3 Rd6 draw
4 Rd7 draw
5 Rd8 draw
6 Rg2 draw
7 Rh2 draw
8 K1b1 loss in 2 half-moves
9 K1b2 loss in 2 half-moves
10 K2b1 loss in 2 half-moves
11 K2b2 loss in 2 half-moves
12 Ka3 loss in 2 half-moves
13 Kb3 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Rd3 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Rd5 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Rf2 loss in 2 half-moves