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b7
i vote for qb2
i go for the ff. line:
1. Qxc4 QxQ then
2. b7 . . . any move and white wins
i go for 1. Qxc4 QxQ
2. b7 . . . any move and white wins
i go for 1. Qxc4 QxQ
2. b7 . . . any move and white wins
1. b7? Qxb7
Better:
1. Qb2 Nb3 (or f.e. 1. … Bc8 2. Ne7+)
2. Bd4 and white will win because black can’t do anything against the white plan to promote the pawn on the b-file.
f.e. 2. … Kf7 3. Nc7 Qa5 4. Nxe6 Kxe6 5. e5 Kf7 (there are no really good moves for black in this position) 6. b7 Qc7 7. Ba7 1-0
Qc4x Qc4x b7
Ano 12:34, I do not get it: 1. b7 as you propose, Qxb7 2. ?
I’d prefer 1. Qb2!! and the simultaneous threat Qxc1 and b7 can only be answered by Nd3 but 2. b7! spoils black’s defense plans as Nxb2 3. b8Q ends in mate after Kf7 4. Qc7+ or in a lpst end game after 3. -, Bc8 5. Qxc8+! [5. Ne7+?, Kf7 6. Q/Nxc8??, Qa2+], Qxc8 6. Ne7+
I do not see any other defense and after 1. -, Qb7 2. Qxc1 black is totally lost as with the queen bound to the pawn there is no danger left to the white king.
Do I oversee anything? What is this 1. b7 solution by ano?
Best wishes from Germany
Jochen
I think Jochen is correct.
The maneuver, Qc4, advocated by a couple of commenters, seems like a clear loser to me:
1. Qc4 Qc4
2. b7 Qa2 followed by a quick mate.
I don’t understand why people are putting exclamation marks on Qb2. In a real game, I would play Qb2 in this situation, and I’m a patzer. The Black N threatens the Q, so you move the Q to threaten the Black N. And also to support the pawn at b7, thereby freeing the white N to do interesting things like giving check at f6. The great Petrosian surely thought of something better.
Mark