Q-463
In the following example, V. Chekhover (1951) tried unsuccessfully to solve the problem of distracting the queen from the control of the a2 square.
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Category: Q vs B+Ps
Q-462
The weaker side can sometimes be saved when its isolated pawns are two steps away from the promotion square. A great example on this theme is seen in V. Chekhover’s 1954 study.
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Q-461
Isolated pawns offer greater chances to save the game, but only if they are far advanced. We see a simple case of this kind in V. Chekhover’s study from 1956.
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Q-460
When black pawns are one row back, the situation is much more favorable for the stronger side. The position is won if pawns can be blocked, which means that the white king must not be too far. We see the critical case in the following position (V. Kovacevic 2012).
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Q-459
When in a similar position the king of the weaker side controls the promotion square, without the help of her king, the queen usually has to fight for a draw either by repeating the position or with perpetual (V. Kovacevic 2012).
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Q-458
QUEEN AGAINST BISHOP AND TWO PAWNS Queen usually wins easily against a bishop and two pawns, provided she can seize the square in front of a more advanced pawn. Even when that pawn is only a step away from the promotion square (B. Horwitz and I. Kling 1851).
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