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 Kg1 draw
3 Kg4 draw
4 Kgg3 draw
5 Kgh2 draw
6 Kh1 draw
7 Khg3 draw
8 Khh2 draw
9 Rf4 draw
10 Rg4 draw
11 Rh5 draw
12 Rh6 draw
13 Rh7 draw
14 Rh8 draw
15 Kf1 loss in 2 half-moves
16 Kf2 loss in 2 half-moves
17 Kf3 loss in 2 half-moves
18 Ra4 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Re4 loss in 2 half-moves