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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Ra1 win in 3 half-moves
3 Rd6 win in 5 half-moves
4 K4b3 win in 7 half-moves
5 Ra4 win in 11 half-moves
6 K2a3 draw
7 K2b3 draw
8 K4a3 draw
9 Ka1 draw
10 Ka2 draw
11 Ka4 draw
12 Ka5 draw
13 Kb1 draw
14 Kc1 draw
15 Ra2 draw
16 Ra7 draw
17 Ra8 draw
18 Rb6 draw
19 Rc6 draw
20 Rf6 draw
21 Rh6 draw
22 K2c3 loss in 2 half-moves
23 K4c3 loss in 2 half-moves
24 Kc2 loss in 2 half-moves
25 Kc4 loss in 2 half-moves
26 Kc5 loss in 2 half-moves
27 Ra3 loss in 2 half-moves
28 Ra5 loss in 2 half-moves
29 Re6 loss in 2 half-moves
30 Rg6 loss in 2 half-moves