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

EGTB: win in 2 half-moves

# move score
1 Rg3 win in 1 half-moves
2 Rb6 draw
3 Rb7 draw
4 Rb8 draw
5 Ka3 loss in 2 half-moves
6 Kaa2 loss in 2 half-moves
7 Kab1 loss in 2 half-moves
8 Kba2 loss in 2 half-moves
9 Kbb1 loss in 2 half-moves
10 Kc1 loss in 2 half-moves
11 Kc2 loss in 2 half-moves
12 Kc3 loss in 2 half-moves
13 Ra3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Rc3 loss in 2 half-moves
17 Rd3 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rh3 loss in 2 half-moves