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 Ka6 draw
3 Kb7 draw
4 Kb8 draw
5 Ra4 draw
6 Rc4 draw
7 Rd4 draw
8 Re1 draw
9 Re5 draw
10 Ka8 loss in 4 half-moves
11 Rf4 loss in 4 half-moves
12 Kb6 loss in 2 half-moves
13 Re2 loss in 2 half-moves
14 Re3 loss in 2 half-moves
15 Re6 loss in 2 half-moves
16 Re7 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rg4 loss in 2 half-moves
19 Rh4 loss in 2 half-moves