Practical Chess Notebooks 4: Tactical Endgames
 We call tactical endgames those in which the fight, generally technical, of this last phase of the game is influenced by threatened kings, or by combinatorial sequences to promote a pawn, exploit a certain advantage, or discover a surprising life-saving maneuver. In other words, endgames in which tactical play predominates, because sacrifices or not very characteristic combinatorial elements intervene in them, when there are few pieces left in play. The Chess School manuals (1 and 2) do not study tactical endgames per se, but when studying combinatorial figures (chapters 5 and 7 of EDX, chapter 2 of EDX 2) several examples were included that can be catalogued as such. In any case, this is not a technical topic that is studied systematically in the manuals, but this notebook is more than justified by its considerable practical value: the positions will give the chess student a broader perspective and
 vision when facing endings with similar ideas (which are very varied here and, in many cases, very original).
 There is only one formula for progressing in chess: playing as many tournaments as possible, along with theoretical study and analysis of one's own games. The ideal complement to this formula, as many Grand Masters recommend, is for the player to develop and perfect his tactical and strategic ability by solving numerous exercises, specially selected for their usefulness. Like the ones we offer you here.