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

EGTB: win in 1 half-moves

# move score
1 Rxb6 win in 41 half-moves
2 K5xb6 loss in 2 half-moves
3 K6xb6 loss in 2 half-moves
4 Rxe1 loss in 1 half-moves