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 Kb3 win in 5 half-moves
3 Re6 win in 5 half-moves
4 K4b4 draw
5 K4b5 draw
6 K5b4 draw
7 K5b5 draw
8 Ka3 draw
9 Ka6 draw
10 Kb6 draw
11 Ra1 draw
12 Rc1 draw
13 Rd1 draw
14 Re2 draw
15 Re7 draw
16 Re8 draw
17 Rf1 draw
18 Re3 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Re5 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rh1 loss in 2 half-moves