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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Ra3 draw
3 Rc3 draw
4 Rg4 draw
5 Rg5 draw
6 Rg6 draw
7 Rg8 draw
8 Rh3 draw
9 K2b3 loss in 2 half-moves
10 K2c3 loss in 2 half-moves
11 K2d3 loss in 2 half-moves
12 K4b3 loss in 2 half-moves
13 K4c3 loss in 2 half-moves
14 K4d3 loss in 2 half-moves
15 Kb1 loss in 2 half-moves
16 Kb2 loss in 2 half-moves
17 Kb4 loss in 2 half-moves
18 Kb5 loss in 2 half-moves
19 Kc1 loss in 2 half-moves
20 Kc5 loss in 2 half-moves
21 Kd1 loss in 2 half-moves
22 Kd2 loss in 2 half-moves
23 Kd4 loss in 2 half-moves
24 Kd5 loss in 2 half-moves
25 Rd3 loss in 2 half-moves
26 Re3 loss in 2 half-moves
27 Rf3 loss in 2 half-moves
28 Rg1 loss in 2 half-moves
29 Rg2 loss in 2 half-moves
30 Rg7 loss in 2 half-moves