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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Ka6 win in 7 half-moves
3 R3a4 win in 7 half-moves
4 Ka8 draw
5 Kb7 draw
6 Kb8 draw
7 R5a4 draw
8 Ra6 draw
9 Rb5 draw
10 Rd5 draw
11 Re3 draw
12 Re5 draw
13 Rf3 draw
14 Rf5 draw
15 Rh3 draw
16 Rh5 draw
17 Ra1 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rc3 loss in 2 half-moves
21 Rc5 loss in 2 half-moves
22 Rd3 loss in 2 half-moves
23 Rg3 loss in 2 half-moves
24 Rg5 loss in 2 half-moves