Problem p20249
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see solution

Technical Merit
Rating1898.0
RD10.8
To Play
Statereleased
 
Artistic Impression
Star Rating4.8
Stars
Votes6

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Star Ratings
DateTacticianRatingStars
2008-10-23 13:09:36Improchess2055
2010-05-02 15:28:27Hyperbeam1613
2011-03-14 16:42:03HermioneG1807
2013-03-02 21:11:40Garryback1679
2013-10-11 10:00:58yarmoe1759
2017-09-09 21:09:17grom431850

Comments
DateTacticianRatingComment
2008-09-26 10:55:21ngnblcn2309nice 
2008-10-23 13:09:36Improchess20556 stars 
2008-10-23 13:10:24Improchess2055I thing this problem must be 2250. 
2009-09-23 23:03:35UriBlass19672250 is clearly too high for it. 
2009-12-16 14:13:15JSorel177420.0 seconds, not so exotic... 
2010-05-02 15:28:27Hyperbeam1613cool 
2011-03-14 16:42:03HermioneG18074.1 seconds 

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Crafty 19.19 3GHZ 5sec

1. ... Kg8
2. Ne7+
({11:Mat06} 2. Ne7+ Kh7 3. Ng6 Rf8 4. Nxf8+ Kg8 5. Rd8 b1=Q 6. Ng6+ Kh7 7. Rh8# $18)
({11:+1.41} 2. Rb7 b1=Q 3. Rxb1 Kh7 4. Rb7 Rxc8 5. Rxf7+ Kh8 6. Kxf1 Rd8 7. Ke2 Kg8 $16)
2. ... Kh7
3. Ng6
({9:Mat05} 3. Ng6 Rf8 4. Nxf8+ Kg8 5. Rd8 b1=Q 6. Ng6+ Kh7 7. Rh8# $18)
({9:+0.18} 3. Rb7 b1=Q 4. Rxb1 Nd2 5. Rb7 Rd8 6. Ng6 Kg8 7. Ne7+ Kh7 $10)