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

EGTB: win in 2 half-moves

# move score
1 Rg5 win in 1 half-moves
2 Re1 draw
3 Re7 draw
4 K3a4 loss in 2 half-moves
5 K3b4 loss in 2 half-moves
6 K5a4 loss in 2 half-moves
7 K5b4 loss in 2 half-moves
8 Ka2 loss in 2 half-moves
9 Ka6 loss in 2 half-moves
10 Kb2 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rc5 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Re2 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Re6 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rf5 loss in 2 half-moves
23 Rh5 loss in 2 half-moves