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

EGTB: win in 2 half-moves

# move score
1 Rg4 win in 1 half-moves
2 Ka1 draw
3 Ka2 draw
4 Kb2 draw
5 Kc1 draw
6 Kc2 draw
7 R4a5 draw
8 R4a6 draw
9 Ra1 draw
10 Ra2 draw
11 Ra3 draw
12 Rb4 draw
13 Rc4 draw
14 Rd4 draw
15 Re4 draw
16 Re7 draw
17 Rf4 draw
18 R7a5 loss in 2 half-moves
19 R7a6 loss in 2 half-moves
20 Ra8 loss in 2 half-moves
21 Rb7 loss in 2 half-moves
22 Rc7 loss in 2 half-moves
23 Rd7 loss in 2 half-moves
24 Rf7 loss in 2 half-moves
25 Rg7 loss in 2 half-moves
26 Rh7 loss in 2 half-moves
27 Rh4 loss in 1 half-moves