GameKnot: Comments - Chess Tactics #24962

CHESS TACTICS #24962

Problem's rating:	1977
Avg. time to solve:	02:48
Total attempts:	375
Solved percentage:	41.6%

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delapiedra
06-Aug-11, 19:20

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Please explain how 3.Qb8 is wrong...

After 2...Qf6, 3.Qb8 wins because white has to immediately address the attack on the queen since 4.Rb1+ forces 4...QxR 5. QxQ (since the black queen covers the h2 square), and white cannot simply block with 3...Rb3 since that loses to 4. RxR. But the "correct" move is supposedly 3.Qf6. I disagree. 3...Rf3 refutes it. Any comments?

perdurabo
07-Aug-11, 14:35

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I don't think 3...Rf3 refutes 3.Qf6:
1. Kg1 Rb2
2. Re3 Qf6
3. Rf3 Rxa2
4. Rxf6 gxf6
and black has a rook for a pawn.

As for 3.Qb8: Sorry, but I'm not sure I get you right on this one. You say that after 2...Qf6, 3.Qb8 wins. But after 2...Qf6 it is white to move. And white can not go to b8.

Do you perhaps mean 2...Qb8 instead of 2...Qf6? In that case white can defend with 3.Qe6. If now 3...Rb1+ then simply interpose the rook on e1 (now protected by the queen on e6).

delapiedra
07-Aug-11, 18:29

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thanks perdurable, you are absolutely right, and yes, I meant 2...Qb8

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CHESS TACTICS #24962