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

EGTB: win in 1 half-moves

# move score
1 Rxg1 win in 51 half-moves
2 K1xg1 loss in 2 half-moves
3 K2xg1 loss in 2 half-moves
4 Rxb4 loss in 1 half-moves