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

EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Ra4 draw
3 Rb4 draw
4 Rc5 draw
5 Rc6 draw
6 Rc7 draw
7 Rc8 draw
8 Rf4 draw
9 Rh4 draw
10 K1e2 loss in 2 half-moves
11 K1f2 loss in 2 half-moves
12 K1g2 loss in 2 half-moves
13 K3e2 loss in 2 half-moves
14 K3f2 loss in 2 half-moves
15 K3g2 loss in 2 half-moves
16 Ke1 loss in 2 half-moves
17 Ke3 loss in 2 half-moves
18 Ke4 loss in 2 half-moves
19 Kf4 loss in 2 half-moves
20 Kg1 loss in 2 half-moves
21 Kg3 loss in 2 half-moves
22 Kg4 loss in 2 half-moves
23 Rc1 loss in 2 half-moves
24 Rc2 loss in 2 half-moves
25 Rc3 loss in 2 half-moves
26 Rd4 loss in 2 half-moves
27 Re4 loss in 2 half-moves