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 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Ra4 draw
6 Rc3 draw
7 Rc6 draw
8 Rc7 draw
9 Rc8 draw
10 Rd4 draw
11 Re4 draw
12 Rc1 loss in 2 half-moves
13 Rc2 loss in 2 half-moves
14 Rc5 loss in 2 half-moves
15 Rf4 loss in 2 half-moves
16 Rg4 loss in 2 half-moves
17 Rh4 loss in 2 half-moves