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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Rb7 win in 3 half-moves
4 K5b5 draw
5 K5b6 draw
6 K6b5 draw
7 K6b6 draw
8 Ka4 draw
9 Ka7 draw
10 Kb4 draw
11 Kb7 draw
12 Ra1 draw
13 Rb8 draw
14 Rc1 draw
15 Rh1 draw
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rd1 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rg1 loss in 2 half-moves