A very serious mistake. I considered castling, which was the right move, but desisted because I was afraid that by playing 13 B × Kt, P × B; 14 Kt - Kt 3, B - Kt 3; 15 Kt - B 5, White would obtain a winning position for the end game. Whether right or wrong this shows how closely related are all parts of the game, and consequently how one will influence the other.
13. B × B
K × B
14. B × Kt
B - Kt 3
Not good. The natural and proper move would have been Kt - K 3, in order to bring all the Black pieces into play. B × Kt at once was also good, as it would have relieved the pressure against Black's King's Pawn, and at the same time have simplified the game.
Here it is seen how failure to comply with the elementary logical reasons, that govern any given position, often brings the player into trouble. I was no doubt influenced in my choice of moves by the fear of B - B 5, which was a very threatening move.
