Chess Puzzles - June 1st

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Date: 31 May 2006 02:52:04
From: W T Harvey
Subject: Chess Puzzles - June 1st

Here are some chess puzzles taken from strong players in May
tournaments. It's White to move and win except where noted.

a) http://wtharvey.com/f2006a.png
Vladimir Moskvin vs Vladimir Grebionkin, Internet, 2006
3qr1k1/4ppbp/2np1np1/2p5/4PP2/2PPNQ1P/1r1B2P1/R3RBK1 w - - 0 1

b) http://wtharvey.com/f2006b.png
Loek Van Wely vs Jeroen Bosch, Netherlands, 2006
4k3/1R2b2p/4n1p1/4Pp2/1p3P1P/r4NP1/3B4/1K6 w - - 0 1

c) http://wtharvey.com/f2006c.png
Suat Atalik vs Ljubomir Orak, Sibenik, 2006
2rr2k1/1b3ppp/1pn1p1q1/p7/P1PP4/1PQ2B2/1B4PP/3R1RK1 w - - 0 1

d) http://wtharvey.com/f2006d.png
White Mates in 7.
Veselin Topalov vs Gata Kamsky, Sofia, 2006
4k3/1p2prQ1/p1p2np1/2PrRB1p/8/2Bq2PP/PP3PK1/8 w - - 0 1

e) http://wtharvey.com/f2006e.png
Black to move and win.
Vladimir Moskvin vs Boris Savchenko, Internet, 2006
3r2k1/5pp1/p4b2/Pp2nq2/2b1p3/2P1B1PP/1PQN3K/R3R3 b - - 0 1

Solutions are posted at the top of http://www.wtharvey.com/prodex.html

WH

Date: 03 Jun 2006 08:41:53
From: ParTizan
Subject: Re: Chess Puzzles - June 1st

can u plz post this puzzels in my group too
http://groups.google.com/group/CheckMates
thx!!!

[email protected] wrote:
> Warning: His link has popup ads. Wow, these are hard. I suppose a
> professional needs to be able to accurately visualize 4-5 plies out,
> but I can only see 2-3.
>
> f2006a
>
> My Analysis (+2 points)
>
> We have no forcing moves or captures, the enemy king is protected.
> Eliminating the well-posted enemy rook on b2 should be a priority. Our
> bishop on d2 is en-prise!
>
> 1. Nc4
> ... Rb3 2. e5! (double attack: Qxc6 or exd7) - right
> ... Rb7 2. e5! (double attack: Qxc6 or exd7) - right
> ... Rb8 2. e5! (double attacK: Qxc6 or exd7) - right
> ... Rxd2 2. Nxd2 - right
>
> Crafty Analysis (+2 points)
>
> 1. Bc1 Rxd2 2. Nxd2
> 1. Nc4 Rxd2 2. Nxd2
> 1. Nc4 Rb3 2. e5!
> 1. Nc4 Rb8 2. e5!
> 1. Nc4 Rb7 2. e5!
>
> f2006b
>
> My Analysis (+1? = -3)
>
> Our knight on f3 is en-prise! The enemy king can be check via Rb8, but
> he can escape to d7 or f7
>
> 1. Bxb4 Bxb4 2. Rxb4 (+1) - wrong
> 1. Rb8 f7 2. Ng5 Nxg5 3. hxg5 Rxg3 (-1) - right
>
> Crafy Analysis (+3)
>
> 1. Rxe7 Kxe7 2. Bxb4 Kd8 3. Bxa3 (+6)
> 1. Rxe7 Kd8 2. Rxe6 Rxf3 (+3)
> 1. Rxe7 Kd8 2. Rxe6 Rxf3 3. Bxb4? Kc2 4. Rxb4 (+0)
> 1. Bxb4 Bxb4 2. Rxb4 Rxf3 (-3)
> 1. Ng5 hxg3 2. Rxg3 (-1)
>
>
> f2006c
>
> My Analysis (+2, perhaps more)
>
> No pieces en-prise. Our king is under attack. Enemy planning along the
> lines: 1. Nxd4 Rxd4 2. Rxd4 Qxd4 3. Bxf3 Rxf3 4. Qb1. This doesn't
> quite work, but it's close to working. If the enemy queen and d4 pawn
> were gone, we might have checkmate.
>
> 1. d5 exd5 2. Bh5 Qxh5 3. Qxg7# (win) - right
> 1. d5 Nb4 2. Bh5 Qg5 3. Bxf7 Qxf2# (loss) - wrong (+5)
> 1. d5 Nb4 2. Bh5 Qg5 3. Bc1 Qe7 4. Rxf7 (+2) - wrong (-3)
>
> Crafty Analysis (+2, perhaps more)
>
> 1. d5 exd5 2. Bxd5 Rf8 (It believes more is there, 4-5 moves away)
> 1. d5 exd5 2. Bh5 d4 3. Bxg6 dxc6 4. Bxf7 Kh8 5. Bxc3 (+2)
> 1. d5 Nb4 2. Bh5 Qxg5 3. Bc1 Qxh5 (-3)
> 1. d5 exd5 2. Bh5 Qxg5 3. Qxg7# (win)

Date: 31 May 2006 13:06:13
From: [email protected]
Subject: Re: Chess Puzzles - June 1st

Warning: His link has popup ads. Wow, these are hard. I suppose a
professional needs to be able to accurately visualize 4-5 plies out,
but I can only see 2-3.

f2006a

My Analysis (+2 points)

We have no forcing moves or captures, the enemy king is protected.
Eliminating the well-posted enemy rook on b2 should be a priority. Our
bishop on d2 is en-prise!

1. Nc4
... Rb3 2. e5! (double attack: Qxc6 or exd7) - right
... Rb7 2. e5! (double attack: Qxc6 or exd7) - right
... Rb8 2. e5! (double attacK: Qxc6 or exd7) - right
... Rxd2 2. Nxd2 - right

Crafty Analysis (+2 points)

1. Bc1 Rxd2 2. Nxd2
1. Nc4 Rxd2 2. Nxd2
1. Nc4 Rb3 2. e5!
1. Nc4 Rb8 2. e5!
1. Nc4 Rb7 2. e5!

f2006b

My Analysis (+1? = -3)

Our knight on f3 is en-prise! The enemy king can be check via Rb8, but
he can escape to d7 or f7

1. Bxb4 Bxb4 2. Rxb4 (+1) - wrong
1. Rb8 f7 2. Ng5 Nxg5 3. hxg5 Rxg3 (-1) - right

Crafy Analysis (+3)

1. Rxe7 Kxe7 2. Bxb4 Kd8 3. Bxa3 (+6)
1. Rxe7 Kd8 2. Rxe6 Rxf3 (+3)
1. Rxe7 Kd8 2. Rxe6 Rxf3 3. Bxb4? Kc2 4. Rxb4 (+0)
1. Bxb4 Bxb4 2. Rxb4 Rxf3 (-3)
1. Ng5 hxg3 2. Rxg3 (-1)

f2006c

My Analysis (+2, perhaps more)

No pieces en-prise. Our king is under attack. Enemy planning along the
lines: 1. Nxd4 Rxd4 2. Rxd4 Qxd4 3. Bxf3 Rxf3 4. Qb1. This doesn't
quite work, but it's close to working. If the enemy queen and d4 pawn
were gone, we might have checkmate.

1. d5 exd5 2. Bh5 Qxh5 3. Qxg7# (win) - right
1. d5 Nb4 2. Bh5 Qg5 3. Bxf7 Qxf2# (loss) - wrong (+5)
1. d5 Nb4 2. Bh5 Qg5 3. Bc1 Qe7 4. Rxf7 (+2) - wrong (-3)

Crafty Analysis (+2, perhaps more)

1. d5 exd5 2. Bxd5 Rf8 (It believes more is there, 4-5 moves away)
1. d5 exd5 2. Bh5 d4 3. Bxg6 dxc6 4. Bxf7 Kh8 5. Bxc3 (+2)
1. d5 Nb4 2. Bh5 Qxg5 3. Bc1 Qxh5 (-3)
1. d5 exd5 2. Bh5 Qxg5 3. Qxg7# (win)

Date: 31 May 2006 05:33:01
From:
Subject: Re: Chess Puzzles - June 1st

Here are representations of all these puzzles in ChessUp
(http://chessup.net), a free online tool for creating chess diagrams:

a) http://tinyurl.com/ma2ko
b) http://tinyurl.com/nxauf
c) http://tinyurl.com/n253d
d) http://tinyurl.com/qngwd
e) http://tinyurl.com/m2asg

W T Harvey wrote:
> Here are some chess puzzles taken from strong players in May
> tournaments. It's White to move and win except where noted.
>
> a) http://wtharvey.com/f2006a.png
> Vladimir Moskvin vs c, Internet, 2006
> 3qr1k1/4ppbp/2np1np1/2p5/4PP2/2PPNQ1P/1r1B2P1/R3RBK1 w - - 0 1
>
> b) http://wtharvey.com/f2006b.png
> Loek Van Wely vs Jeroen Bosch, Netherlands, 2006
> 4k3/1R2b2p/4n1p1/4Pp2/1p3P1P/r4NP1/3B4/1K6 w - - 0 1
>
> c) http://wtharvey.com/f2006c.png
> Suat Atalik vs Ljubomir Orak, Sibenik, 2006
> 2rr2k1/1b3ppp/1pn1p1q1/p7/P1PP4/1PQ2B2/1B4PP/3R1RK1 w - - 0 1
>
> d) http://wtharvey.com/f2006d.png
> White Mates in 7.
> Veselin Topalov vs Gata Kamsky, Sofia, 2006
> 4k3/1p2prQ1/p1p2np1/2PrRB1p/8/2Bq2PP/PP3PK1/8 w - - 0 1
>
> e) http://wtharvey.com/f2006e.png
> Black to move and win.
> Vladimir Moskvin vs Boris Savchenko, Internet, 2006
> 3r2k1/5pp1/p4b2/Pp2nq2/2b1p3/2P1B1PP/1PQN3K/R3R3 b - - 0 1
>
> Solutions are posted at the top of http://www.wtharvey.com/prodex.html
>
> WH