1. R. to Q Kt. 4th. If K. take R., White plays R. to K. 5th and Mates. If B. or Q. check, K. R. interposes, mating. If Kt. check, R. takes Kt. mating. If he play Kt. to Q. 4th, with the view of interposing next move at K. 2d, or of taking the R., Rook mates at B. 6th. If Q |