25 Nov 06
1 edit
Originally posted by PaeskovskiIt seems the Rook sacrifice 1...Rxd3+ wins. Variations:
I only recently discovered this great site, so here's my first attempt at making an FEN... this is a position I encountered a couple days ago in a game ... black to move [fen]1k6/pp5p/5pqb/8/5p1Q/2pPr1P1/2P4P/R2K3R b - - 0 1[/fen]
A) 2.cxd3 Qxd3+ 3.Ke1 Qd2+ 4.Kf1 f3 5.Qc4 Qg2+ 6.Ke1 Qxh1+ 7.Kf2 Qg2+ 8.Ke1 f2+
...A1) 5.Qh3 Qe2+ 6.Kg1 f2+ 7.Kg2 f1=R#
...A2) 5.Ra2 Qd3+ 6.Ke1 [6.Kg1 Be3+ 7.Rf2 Qd1#] 6...Bd2+ 7.Kd1 Qb1#
B) 2.Ke2 Qe4+ 3.Kf2 Rd2+ 4.Kf1 Qg2+ 5.Ke1 Qf2#
Edit: Just noticed C) 2.Kc1. Black already has a material edge, but the best line I've found is 2...Rd2 3.Ra2 fxg3. Can anyone find a 'cleaner' win?
25 Nov 06
2 edits
Originally posted by BigDoggProblem1. ... Rxd3+ 2. Kc1 fxg3+ 3. Kb1
It seems the Rook sacrifice [b]1...Rxd3+ wins. Variations:
A) 2.cxd3 Qxd3+ 3.Ke1 Qd2+ 4.Kf1 f3 5.Qc4 Qg2+ 6.Ke1 Qxh1+ 7.Kf2 Qg2+ 8.Ke1 f2+
...A1) 5.Qh3 Qe2+ 6.Kg1 f2+ 7.Kg2 f1=R#
...A2) 5.Ra2 Qd3+ 6.Ke1 [6.Kg1 Be3+ 7.Rf2 Qd1#] 6...Bd2+ 7.Kd1 Qb1#
B) 2.Ke2 Qe4+ 3.Kf2 Rd2+ 4.Kf1 Qg2+ 5.Ke1 Qf2#
Edit: Just noticed C) 2.Kc1. Black already h ...[text shortened]... al edge, but the best line I've found is 2...Rd2 3.Ra2 fxg3. Can anyone find a 'cleaner' win?[/b]
this looks like a great start. I was looking at: 3. ... f5 but 4. Qa4 slows things down quite a bit
edit: actually after moves like Rd2 and gxh2 things are still going pretty good.
26 Nov 06
Originally posted by preachingforjesusYeah, the main idea of delaying ...fxg3 is not to let the wQ have access to the full 4th rank so soon.
1. ... Rxd3+ 2. Kc1 fxg3+ 3. Kb1
this looks like a great start. I was looking at: 3. ... f5 but 4. Qa4 slows things down quite a bit
edit: actually after moves like Rd2 and gxh2 things are still going pretty good.
26 Nov 06
Originally posted by BigDoggProblemI indeed played 1...Rxd3+
It seems the Rook sacrifice [b]1...Rxd3+ wins. Variations:
A) 2.cxd3 Qxd3+ 3.Ke1 Qd2+ 4.Kf1 f3 5.Qc4 Qg2+ 6.Ke1 Qxh1+ 7.Kf2 Qg2+ 8.Ke1 f2+
...A1) 5.Qh3 Qe2+ 6.Kg1 f2+ 7.Kg2 f1=R#
...A2) 5.Ra2 Qd3+ 6.Ke1 [6.Kg1 Be3+ 7.Rf2 Qd1#] 6...Bd2+ 7.Kd1 Qb1#
B) 2.Ke2 Qe4+ 3.Kf2 Rd2+ 4.Kf1 Qg2+ 5.Ke1 Qf2#
Edit: Just noticed C) 2.Kc1. Black already h ...[text shortened]... al edge, but the best line I've found is 2...Rd2 3.Ra2 fxg3. Can anyone find a 'cleaner' win?[/b]
After 2.cxd3, I played 2...Qxd3+ 3.Ke1 f3 resulting in a much faster mate than you proposed, because Qc4 is now impossible for white (4. Ra2? c2!)
I figured the only way to prevent a mate for white is 2.Kc1 and the variation I had in mind was: 2...fxg3+ 3.Kb1 g2 4. Rg1 Rd2 5.Qa4 Be3 and a definite advantage for black...
...fortunately however my opponent took the bate, played 2.cxd3 and resigned after 3...f3
