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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 K5b6 win in 9 half-moves
3 Kb4 win in 9 half-moves
4 K6b6 win in 11 half-moves
5 Ka4 win in 11 half-moves
6 K5b5 draw
7 K6b5 draw
8 Kb7 draw
9 Ra8 draw
10 Rc7 draw
11 Rd7 draw
12 Rh7 draw
13 Re7 loss in 2 half-moves
14 Rf7 loss in 2 half-moves
15 Rg7 loss in 2 half-moves