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Daily chess puzzle: Check Mate #403

Another puzzle from Dragoslav Andric’s 1981 book “Matni Udar”.

 

White to play and mate Black

4031

Urzica v Ghinda, Bucharest 1975

 

Solution

It took me a short while to see that the way to break through was by deflecting the queen: examine all biffs again: 1 Bd8!

4032

Black must move his Q to a6, to continue guarding e6, when 2 Rg7 breaks through. 2…Kg7[] 3 Qg5+

4033

Kf8 (3…Kh7 4 Bf6 and if 4..Rg8, 5 Qh5 is mate) 4 Be7+ and 5 Bd6 and 1-0

4034

FEN

r1b2k1r/p2n1pp1/1q2p3/2ppP1B1/1b1N1Q1P/2N5/PPP2P2/R3K1R1 w Q – 0 17

 

Daily chess puzzle: Check Mate #402

Another puzzle from Dragoslav Andric’s 1981 book “Matni Udar”.

 

White to play and mate Black

4021

Ambrosimov v Ambajnes, 1975

 

Solution

A nice variation of a standard motif.

1 R1d4! ed[]

4022.JPG

2 Qh7+! Kh8[] 3 Rh5 mate.

4023

FEN

1r1r3k/4N1pp/1p1Pqp2/3Rp3/3n4/8/P4PPP/1Q1R2K1 w – – 0 1

Daily chess puzzle: Check Mate #401

Another puzzle from Dragoslav Andric’s 1981 book “Matni Udar”.

Black to play and mate White

4011

Solution

A pure trip down memory lane. I clearly remember this position, and the joy as a twelve year old seeing it, possibly for the first time in the February 1975 British Chess Magazine (BCM): I say possibly, because, oddly, the game isn’t given much profile in that magazine, which I had a look at in writing this posting.

A really liked Rafael Vaganian, who to my pre teenage eyes was (i) Russian [I suspect he was Armenian] and (ii) stylish; and the fact that he lost to someone I had not heard of, in fine style, with Na1!! was really notable. It has been nice to see Rafael playing in Biel last month, the first I have seen of him for many years.

So, 43 years later, the ‘solution’ came to me instantly. 1..Bf5

4012

2 Qa8 Qd6+

4013

3 Kc1 Na1

4014

4 Qb7 Qc7+!! – the final joyful coup.

4015

Vaganian resigned, rather than permitting 5 Qc7 Nb3 mate.

4016

Postscript

However, there is a spoiler


4 Qb7?? is a mistake. 4 Bc4! is considerably stronger, and my engine says is 0.0


After 4 Bc4! Qc7 5 Nc3 Qc4 6 Qd8 just about holds the balance. I have played a few variations out with my engine: White’s king is checked into the open board, so in human chess terms Black is having all the fun, but the engine regards the line as equal. 


Also, 3 Kc3 is just about playable, though I think Black is better and White would have a tough time holding on. The real mistake was therefore 4 Qb7??


FEN

r1b1Q3/pp3ppk/1q5p/8/8/P3P3/1PnK1PPP/3N1B1R b – – 0 19

Daily chess puzzle: Check Mate #400

Another puzzle from Dragoslav Andric’s 1981 book “Matni Udar”.

Black to play and mate White

4001

Solution

A miffed this one, choosing what I thought was the convincing 1..Re2??, seeing that most captures won for Black, but missing that 2 Ne2! wins: 2…Qh3+ 3 Kg1[] Qf3 is met by 4 Nf4, and the game is over (I also missed that 2 Ba8 is equal).

Alas, 1…Re3!! is the lovely winning move, and White resigned.

4002

If 2 fe Nh3 and mate.

4003

I fear that I could very well have played 1…Re2 in a game, expecting plaudits and praise, and then being devastated: chess can be a cruel game.

Finally, Komodo says that the rook life 1…Re5 is also winning.

FEN

r3r3/p1p2p1k/3p2pp/2p5/2P2n2/2N2B2/PPR1PP1q/3RQK2 b – – 0 26

Daily chess puzzle: Check Mate #399

Another puzzle from Dragoslav Andric’s 1981 book “Matni Udar”.

Black to play and mate White

3991

Andersson v Knutsson, Stockholm 1974

Solution

Not too hard today, the position being a variation of the motif often seen in puzzle books, but with White playing 1 Qd8+, Bg5+ or Ba5+ and Rd8 mate.

Here, 1…Qd1+ 2 Kd1 Bg4++ 3 K moves Rd1 mate.

3992

FEN

1k1r4/pp1b1R2/3q2pp/4p3/2B5/4Q3/PPP2B2/2K5 b – – 0 1

Daily chess puzzle: Check Mate #398

Another puzzle from Dragoslav Andric’s 1981 book “Matni Udar”.

Black to play and mate White

3981

Westerinen v Hubner, Oslo 1974

Solution

Quite an elegant solution, a one move one: 1…f4 and White is powerless to meet the threat of 2…Bc5+ and 3..bc mate. The position below is after 2 (null move) Bc5+ and 3…bc mate.

3982.JPG

Alas, my eyesight is poor, and I actually solved a different problem, but with the same solution:

3983

Here, 1…f4! is again the solution, and threatens 2…Rfc8-c4 and mate, which can only be stopped by losing the N.

FEN

5b2/3k4/1p2p2p/3pPpp1/1P1K4/P2R3P/2rN2P1/8 b – – 0 50

Daily chess puzzle: Check Mate #397

Another puzzle from Dragoslav Andric’s 1981 book “Matni Udar”.

Black to play and mate White

3971

Solution

Fairly easy today. The first move to consider is 1…Nf3+, and it is overpowering. ┬áIf 2 Kh1 then 2…Qd3 wins, but nicer is 2…Qd6 as played in the game, 3 g3 Qd3 4 Kg2

3972

4…Qf1+! 5 Kf1[] Bh3 mate (in the game, Black played 5..Re1+ and 6…Rg1 mate)

3972.JPG

 

FEN

1r2r1k1/Q1pq1ppp/8/4n3/6b1/3P4/PP3PPP/RNB2RK1 b – – 0 1