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

EGTB: draw

# move score
1 Kb6 draw
2 Kb7 draw
3 Kb8 draw
4 Ra3 draw
5 Rb3 draw
6 Rc5 draw
7 Rc6 draw
8 Rc7 draw
9 Rc8 draw
10 Ka6 loss in 4 half-moves
11 Ka8 loss in 4 half-moves
12 Rc4 loss in 4 half-moves
13 Rd3 loss in 4 half-moves
14 Re3 loss in 4 half-moves
15 Rc1 loss in 2 half-moves
16 Rc2 loss in 2 half-moves
17 Rf3 loss in 2 half-moves
18 Rh3 loss in 2 half-moves
19 Rg3 loss in 1 half-moves