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

EGTB: win in 4 half-moves

# move score
1 Ra5 win in 3 half-moves
2 Ra8 win in 3 half-moves
3 Ra6 win in 7 half-moves
4 Ra7 win in 7 half-moves
5 K6a6 draw
6 K6a7 draw
7 K6c6 draw
8 K6c7 draw
9 K7a6 draw
10 K7a7 draw
11 K7c6 draw
12 K7c7 draw
13 Ka5 draw
14 Ka8 draw
15 Kb8 draw
16 Kc8 draw
17 Rb1 draw
18 Rf1 draw
19 Kb5 loss in 2 half-moves
20 Kc5 loss in 2 half-moves
21 Ra2 loss in 2 half-moves
22 Ra3 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Rc1 loss in 2 half-moves
25 Rd1 loss in 2 half-moves
26 Re1 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rh1 loss in 2 half-moves