Problem p30602
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see solution

Technical Merit
Rating1763.4
RD6.2
To Play
Statereleased
 
Artistic Impression
Star Rating3.7
Stars
Votes16

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Star Ratings
DateTacticianRatingStars
2008-08-06 16:15:44Hyperbeam1613
2008-09-19 08:27:07mruto1611
2009-03-24 11:37:23jokim2000
2010-01-13 04:13:51grom431821
2010-03-10 21:53:12bvmcheckking1812
2010-10-28 12:38:00JSorel1774
2010-11-22 11:58:41Tiger4life1580
2010-12-07 23:47:07QuickFire1625
2010-12-22 18:33:38television1694
2011-10-07 06:42:47Garryback1679
2011-10-27 23:25:50mykingislonely1781
2011-12-21 19:12:41SirRick1703
2012-05-28 13:01:47forestry1507
2012-06-18 07:41:3210101631
2015-11-23 20:49:37chessisajedrez1731
2017-08-07 14:56:16Bisonratte1501

Comments
DateTacticianRatingComment
2008-11-14 09:52:30drad1651real Art of Attack type stuff 
2009-01-29 17:00:18UriBlass202514.8 seconds 
2009-03-24 11:37:23jokim2000Is Bg6+ on the last move really that bad? I believe it leads more or less to mate as well. 
2010-01-13 04:13:51grom431821I too played Bg6+, but 5 Rf1+ is far superior with 6 Bg6 the huge threat that wins black's queen. 
2010-11-22 11:03:19QuickFire162522.8 seconds 
2010-11-22 11:58:41Tiger4life1580I think i got a bug, 2 Qg5+ was marked as wrong 
2010-12-07 23:47:07QuickFire162553.3 seconds 
2010-12-22 18:33:38television1694poor black king 
2011-05-19 18:52:06barz1628◄ Position ► r2r1k2/pp1b1pp1/4pn1B/q7/7P/2PB4/P1PQ2P1 /1K2RR2 b - - 0 1 
2011-10-27 23:25:50mykingislonely1781Bg6+ is clearly winning. 
2015-11-23 20:49:28chessisajedrez1731I thought Bg6+ was a mistake. Then I saw the notes. After looking with Stockfish I still think the solution is correct. You need to play Rf1+. Bg6+ is superfluous. 
2017-08-07 14:56:12Bisonratte1501annihilation of the pawn shelter 

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Crafty 19.19 3GHZ 5sec

1. ... Nd5
2. Bxg7+
({8:+3.59} 2. Bxg7+ Ke8 3. Ka1 Rdc8 4. Qg5 Qc5 5. Bd4 Qe7 6. Qg7 $18)
({8:-1.01} 2. Qf2 Nxc3+ 3. Kb2 Qxa2+ 4. Kxc3 Rac8+ 5. Kd2 Qa5+ 6. Kc1 Be8 7. Bxg7+ Kxg7 8. Kb1 $17)
2. ... Kxg7
3. Qg5+
({10:+8.37} 3. Qg5+ Kf8 4. Rxf7+ Kxf7 5. Rf1+ Nf4 6. Qxa5 b5 7. Qc7 Ke7 8. Rxf4 Rac8 9. Qe5 $18)
({9:-2.60} 3. Kb2 f6 4. Rf3 Rac8 5. Rg3+ Kf8 6. Bg6 Rxc3 7. Qh6+ Ke7 8. Qd2 $19)
3. ... Kf8
4. Rxf7+
({10:+9.35} 4. Rxf7+ Kxf7 5. Rf1+ Nf4 6. Qxa5 b5 7. Qc7 e5 8. Qxe5 Kg8 9. Qg5+ Kh8 10. Qh6+ Kg8 11. Rxf4 $18)
({9:-2.25} 4. Qh6+ Ke7 5. Bc4 Nxc3+ 6. Ka1 Rf8 7. Re3 Nd5 8. Bxd5 Qxd5 9. Qf6+ Kd6 10. Rd3 $19)
4. ... Kxf7
5. Rf1+
({9:+9.35} 5. Rf1+ Nf4 6. Qxa5 b5 7. Qc7 e5 8. Qxe5 Kg8 9. Qg5+ Kh8 10. Qh6+ Kg8 11. Rxf4 $18)
({9:+4.49} 5. Bg6+ Kg7 6. Be4+ Kh8 7. Qh6+ Kg8 8. Qh7+ Kf8 9. Rf1+ Nf4 10. Rxf4+ Qf5 11. Bxf5 exf5 12. Rd4 Ke8 13. Qg7 $18)