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.
Post Reply
duder
Posts: 2
Joined: Sun Jun 24, 2007 6:33 pm

Puzzle: White Mates in 10?

Post by 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

cnita
Posts: 38
Joined: Sat Jun 10, 2006 1:14 am
Location: Bucharest,Romania

White mate in 10 ?

Post by cnita » Thu Jul 19, 2007 10:27 pm

No

islanderfan
Posts: 880
Joined: Mon May 14, 2001 10:56 pm

Post by 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

Post by 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?

whitehorse
Posts: 1
Joined: Wed May 23, 2007 5:32 am

Post by whitehorse » Wed Aug 08, 2007 6:16 am

How about Bxb6, if Qxb6 then Qxd7+, Kb8 Qc8 checkmate!
Am I correct?

gregorgysi
Posts: 37
Joined: Thu May 11, 2000 7:57 am

Post by gregorgysi » Tue Aug 26, 2008 5:16 pm

@ whitehorse : Bxb6 and Bxb2+ and no checkmate in NEAR sight

jboger
Posts: 10
Joined: Tue Dec 16, 2008 3:44 pm

There's a mate in 7

Post by 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.

langelli
Posts: 148
Joined: Tue Sep 21, 2004 11:29 am

Post by langelli » Wed Dec 17, 2008 10:54 pm

post it

jboger
Posts: 10
Joined: Tue Dec 16, 2008 3:44 pm

Post by 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.)

Post Reply