2r2r2/b4p1k/p3bPp1/q2pP2p/2nP3P/PpN5/1P1Q4/KB4R1 w – – 0 1
White to move. How should White proceed?
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qg5 na3 qh5 kg8 rg6 fg6 qg6 kh8 qg7
eli
1. Qg5 is the start of good things for White. Some samples:
1. … Bf5
2. Bxf5 Qxa3+ (Black can only forestall the waiting mate)
3. bxa3 b2+
4. Kb1 Nd2+
5. Kxb2 Rb8+
6. Ka2 Rb2+
7. Kxb2 Nc4+
8. Ka2 Rh8
9. Bxg6+ Kg8
10. Bf5+ Kf8
11. Qg7+ Ke8
12. Qxh8#
Or, from 4. Kb1 above:
4. … Nxa3
5. Ka2 b1(Q)
6. Rxb1 Rh8 (6. … Nxb1 loses more quickly after 7. Qxh5+ etc.)
7. Bxg6+ Kg8 etc., as above.
1. … Bg4
2. Rxg4 hxg4
3. Qh5 Kg8
4. Qh6 Qxa3+
5. bxa3 b2+
6. Ka2 Bxd4
7. Qg7#
1. … Nxa3
2. Bxg6+ fxg6 (2. … Kh8 3. Qh6+ Kg8 4. Qg7#)
3. Qxg6+ Kh8
4. Qg7#
jcheyne
1. Bxg6+ fxg6
2. Rxg6 Kxg6 (or else Rg7+ and Qh6)
3. Qg2+ Kf5 (else Qg7++)
4. Qg5 mate
I’m not sure about 1. Bxg6:
1. Bxg6 fxg6
2. Rxg6
What will White do after 2. … Nxd2?
jcheyne
Another try for Black after 1. Qg5, who must be frustrated at not finding a mate against White:
1. … Qxa3+
2. bxa3 b2+
3. Ka2 Bf5
4. Bxf5 b1(Q)+
5. Nxb1 Rh8
6. Bxg6+
and the win is as posted before.
jcheyne
1.Rxg6 fxg6 (if not then mate with Rg7-h7) 2.Bxg6+ Kxg6 (or Kg8 3.Qh6 +-) 3.Qg5+ Kf7 4.Qg7+ Ke8 5.Qe7 mate.
“1.Rxg6 fxg6 (if not then mate with Rg7-h7) 2.Bxg6+ Kxg6 (or Kg8 3.Qh6 +-) 3.Qg5+ Kf7 4.Qg7+ Ke8 5.Qe7 mate.” – Anonymous
1. Rxg6 Nxd2 2. Rg7+ Kh8 and white only has perpetual.