CHESS CAMEOS
No. XXVI
Black has made the false move Kt from Q sq to Kt 3. When this is replaced, and the king is moved as the proper penalty, White mates at once with one or other of the Knights.
No. XXVII
Replace the White Kt at B 7, and a Black Pawn at K 4; then P takes P en pas. Mate.
ANALYSIS AND PROOF
It can be proved that Black’s last move must have been P from K 2 to K 4, so that White may take the P en pas.
The Black King cannot have moved from any occupied square.
(The White Kt now occupies B 7.)