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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rc1 draw
3 Rd1 draw
4 Re2 draw
5 Re3 draw
6 Re4 draw
7 Re7 draw
8 Rh1 draw
9 K1a2 loss in 2 half-moves
10 K1b2 loss in 2 half-moves
11 K3a2 loss in 2 half-moves
12 K3b2 loss in 2 half-moves
13 Ka4 loss in 2 half-moves
14 Kb1 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Kb4 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rg1 loss in 2 half-moves