3.7.4. Isolated Pawns with One Passed Pawn
Although in positions with isolated pawns the possibilities of counter-play of the weaker side are better since two opponent’s weaknesses can be attacked, the prospects of a successful defence are, as a rule, slimmer than in endings with connected pawns. In knight endings a pawn plus represents huge advantage and very often guarantees victory. The outcome of the game is usually decided by king and knight activity! In endings with one blocked and one passed pawn, the weaker side draws very easily provided knight can attack the blocked and king the passed pawn. This is nicely illustrated in the ending of the game Botwinnik – Lisicin, Moscow, 1935.