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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Kb1 draw
3 Kc7 draw
4 Kc8 draw
5 Ke7 draw
6 Ke8 draw
7 Rc7 draw
8 Rd1 draw
9 Rd2 draw
10 Rd3 draw
11 Rd4 draw
12 Rd5 draw
13 Rd6 draw
14 Re7 draw
15 Rf7 draw
16 Rg7 draw
17 Rh7 draw
18 Ka2 loss in 1 half-moves
19 Kb2 loss in 1 half-moves
20 Ra7 loss in 1 half-moves