In this week’s position, White has to play and save the game.
He has a passed pawn on the seventh rank, but normally the Queen wins when the pawn is not on the Bishop or Rook files.
Nevertheless White can save the game.
Of course, if he promotes the pawn immediately, it is taken very quickly to a discovered check. So what does White do?
The solution to last Monday’s problem is that Black wins by playing 1… Kd5! 2. Kb4 Ke4 3. Kxb5 Kf3 4. Kc5 Kxf2 . 5. e4 h4! 6. e5 hxg3 7. e6 g2 8. e7 g1=Q and Black wins the Queen ending.