"); fclose($hdl); include("{$eb}frmtmp.php"); @unlink("{$eb}frmtmp.php"); ?> Net-Chess.Com • View topic - Puzzle: White Mates in 10?

Puzzle: White Mates in 10?

Post any puzzles you have or post your analysis of any games played on Net-Chess or anywhere else. Posts which do not contain game puzzles or analysis will be removed, such posts belong in the general forum. Commentary and discussion on openings is also welcome here.

Puzzle: White Mates in 10?

Postby duder » Thu Jul 19, 2007 9:48 pm

The fastest mate that I could find at this position was white mating in 10 with:

1. Qc6+, Kb8 2. Bf4+, Bd6 3. Bxd6+, Rxd6 4. Qxd6+, Kb7 5. Qc6+, Kb8 6. Rg1, Qxd2+ 7. Kxd2, Nxc4+ 8. Ke1, Nd6 9. Rg8+ Nc8 10. Rxc8++

Can it be done any quicker?

Image
duder
 
Posts: 2
Joined: Sun Jun 24, 2007 6:33 pm

White mate in 10 ?

Postby cnita » Thu Jul 19, 2007 10:27 pm

No
cnita
 
Posts: 36
Joined: Sat Jun 10, 2006 1:14 am
Location: Bucharest,Romania

Postby islanderfan » Thu Jul 19, 2007 10:54 pm

I am curious, in this case why would you give up your queen for the rook?6. Rg1, Qxd2+ wouldn;t you want to bring the king back by the king?
islanderfan
 
Posts: 880
Joined: Mon May 14, 2001 10:56 pm

Postby islanderfan » Thu Jul 19, 2007 10:54 pm

I am curious, in this case why would you give up your queen for the rook?6. Rg1, Qxd2+ wouldn;t you want to bring the king back by the king?
islanderfan
 
Posts: 880
Joined: Mon May 14, 2001 10:56 pm

Postby whitehorse » Wed Aug 08, 2007 6:16 am

How about Bxb6, if Qxb6 then Qxd7+, Kb8 Qc8 checkmate!
Am I correct?
whitehorse
 
Posts: 1
Joined: Wed May 23, 2007 5:32 am

Postby gregorgysi » Tue Aug 26, 2008 5:16 pm

@ whitehorse : Bxb6 and Bxb2+ and no checkmate in NEAR sight
gregorgysi
 
Posts: 34
Joined: Thu May 11, 2000 7:57 am

There's a mate in 7

Postby jboger » Wed Dec 17, 2008 6:55 pm

There's a mate in 7, but it's not easy to find at all, as the first move is not forcing. Should I go ahead and post it here, or leave it for others to find (given that I used a computer)?

PS. The computer actually found the mate in 10 before the mate in 7 -- it's that obscure.
jboger
 
Posts: 6
Joined: Tue Dec 16, 2008 3:44 pm

Postby langelli » Wed Dec 17, 2008 10:54 pm

post it
langelli
 
Posts: 147
Joined: Tue Sep 21, 2004 11:29 am

Postby jboger » Thu Dec 18, 2008 12:04 am

The first move is Rg1. From here it quickly gets complicated as black has many responses, most of which lead to shorter mates.
Code: Select all
1.Rg1
  1...Bxd2+ 2.Kf1
    2...Qxb5 3.cxb5
      3...Kb8 4.Rg8+
        4...Rd8 5.Rxd8+
          5...Kc7 6.Bxb6+
            6...axb6 7.Qc8#
            6...Kb7 7.Qc6#
          5...Kb7 6.Qc6#
          5...Nc8 6.Qxc8#
        4...Nc8 5.Qxd7 any 6.Rxc8#
        4...Kb7/Kc7 5.Qc6#
      3...Kb7 4.Qc6+ Kb8 5.Rg8+
          5...Rd8 6.Rxd8+ Nc8 7.Rxc8#
          5...Nc8 Rxc8#
      3...Kc7 4.Qc6+
        4...Kb8 5.Rg8+
          5...Rd8 6.Rxd8+ Nc8 7.Rxc8#
          5...Nc8 Rxc8#
        4...Kc8 5.Rg8+ Ke7 6.Qe6#
      3...Bb4 4.Rg8+
        4...Kb7/Kc7 Qc6#
        4...Bf8 5.Rxf8 any 6.Qc6#
      3...Na8/Na4/Nc4/Kd8/d4/g5/Be1/Bxe3/Bc1/Bc3/Ba5 4.Rg8+ any 5.Qc6#
    2...Na8/Na4/Nxc4 3.Qxd7+ Kb8 4.Qc8#
    2...Qa3/Qb4 3.Rg8+
      3...Kb7/Kc7 4.Qc6#
      3...Qf8 4.Rxf8 any 5.Qc6#
    2...Bb4 3.Rg8+
      3...Kb7/Kc7 4.Qc6#
      3...Bf8 4.Rxf8 any 5.Qc6#

and so on, and that's just for 1...Bxd2+ (although I imagine the lines are similar without that.)
jboger
 
Posts: 6
Joined: Tue Dec 16, 2008 3:44 pm


Return to Puzzles and Game Comentary

Who is online

Users browsing this forum: No registered users and 1 guest

cron