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

EGTB: win in 4 half-moves

# move score
1 Kb1 win in 3 half-moves
2 K1b2 draw
3 K3b2 draw
4 Kb3 draw
5 Rc2 draw
6 Ka4 loss in 2 half-moves
7 Kb4 loss in 2 half-moves
8 Rb2 loss in 2 half-moves
9 Rd2 loss in 2 half-moves
10 Re2 loss in 2 half-moves
11 Rf2 loss in 2 half-moves
12 Rg2 loss in 2 half-moves
13 Rh2 loss in 2 half-moves