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

EGTB: draw

# move score
1 Kb7 draw
2 Ra4 draw
3 Rb4 draw
4 Rc1 draw
5 Rc5 draw
6 Rc6 draw
7 Rc7 draw
8 Rc8 draw
9 Re4 draw
10 Ka7 loss in 2 half-moves
11 Kb8 loss in 2 half-moves
12 Rc2 loss in 2 half-moves
13 Rc3 loss in 2 half-moves
14 Rd4 loss in 2 half-moves
15 Rf4 loss in 2 half-moves
16 Rg4 loss in 2 half-moves
17 Rh4 loss in 2 half-moves