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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kc2 draw
3 Kc3 draw
4 Kc4 draw
5 Kd2 draw
6 Kd4 draw
7 Ke2 draw
8 Ke3 draw
9 Ra4 draw
10 Rc4 draw
11 Re1 draw
12 Re3 draw
13 Re5 draw
14 Re6 draw
15 Re7 draw
16 Re8 draw
17 Rf4 draw
18 Rg4 draw
19 Rd4 loss in 2 half-moves
20 Re2 loss in 2 half-moves
21 Rh4 loss in 2 half-moves