Each group spent about 15 minutes with me. When not with me, each group played chess games supervised by the Chess Program Director.

Basic Endgame Checkmates, part four (part 3 was 4-3-13). White to move.

For Beginners: White: Ke1 + Qd1 + Rh1 vs. Black Ke5 checkmate and also White Ke1 + Ra1 + Rh1 vs. Black Ke5 checkmate.

For Experienced: White Ke1 + Ra1 + Rh1 vs. Black Ke5 checkmate and also White Ke1 + Qa1 vs. Black Kd5 checkmate.

For Advanced: White Ke1 + Qa1 vs. Black Kd5 checkmate and also White Ke1 + Rh1 vs. Black Ke5.

For all groups, I demonstrated the second listed checkmate on the demonstration board. That checkmate is a new checkmate to that group. Then students partnered up to practice and to be tested by me. Students who were proficient moved on to more challenging basic checkmates.