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 K1a2 draw
3 K1b2 draw
4 K3a2 draw
5 K3b2 draw
6 Ka4 draw
7 Kb1 draw
8 Kb3 draw
9 Kb4 draw
10 Ra2 draw
11 Rc2 draw
12 Rd2 draw
13 Re1 draw
14 Re6 draw
15 Re7 draw
16 Re8 draw
17 Re3 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Re5 loss in 2 half-moves
20 Rf2 loss in 2 half-moves
21 Rg2 loss in 2 half-moves
22 Rh2 loss in 2 half-moves