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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Ra4 draw
3 Rb5 draw
4 Rb6 draw
5 Rb7 draw
6 Rb8 draw
7 Rc4 draw
8 Rd4 draw
9 Re4 draw
10 Rb1 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rf4 loss in 2 half-moves
13 Rg4 loss in 2 half-moves
14 Rh4 loss in 2 half-moves