Puzzle of the week #63

Submitted by oldadmin on

Attack and counter attack

Level
4-Rook
Chess Diagram
[Event "Puzzle #63"][Date "2009.03.20"][Result "0-1"][SetUp "1"][FEN "r1b1qrk1/p1p1N1pp/4n3/8/8/1Q1P2P1/PP2PpBP/RN3K2 b - - 0 17"]
Sometimes both players throw caution into the wind and go "all in" as they say in pocker, meaning they go for the win as soon as possible. Have you ever tried this strategy? It is extremely fun if you like the roller coaster experience it gives you because the game goes on really fast and the emotions are very high. This used to be the major style of play at the beginning of the 20th Century, the so called time of "romantic" chess. In those days players would develop partially and then launch a quick attack; given the fact the art of defence was not very well developed, lots of those attacks ended in spectacular wins.
Tim Krabbe has uncovered a nice gem Bruckner - S. Rubinstein, Vienna 1936 as an example. Your tasks:
a) Analyse the position and decides who stays better (10 points)
b) Black to move. What is the best line you can think of and who wins? (10 points)

Total available points for this puzzle is 20. The answers will be published next week together with puzzle #64.

Puzzle #62 solution:
Here are the best answers of the week by Andy Y and Joshua.
Andy Y:
a) This initial position depicts material as being even.
Black possesses the two bishops but is very far behind in development, while White has most of his forces developed.
White's King is fairly safe, while Black's King is open and subject to attack. In addition, White's forces are well placed to exploit these kingside weaknesses.
Black's has a Rook on the second rank, but it does little good with his other rook on h8, and any threats are easily stopped.
White's Knight on c7 seems a bit overextended: at a glance, it is difficult to tell whether it is well or poorly placed.
Overall, White appears to be in much better shape than Black. A further examination reveals the Knight on c7 to be very well placed.
b) See solution:

[Event "Puzzle #62"][Date "2009.03.13"][Result "1-0"][SetUp "1"][FEN "2k2bnr/1pN3pp/p1b2p2/2p5/5B2/1N3P2/PPP1r1PP/R2R2K1 w - - 0 1"]{Andy Y} 1.Na8 {Threatens Nb6# (the Barendregt mate)} 1...b5 2.Nb6+ Kb7 3.Nd7 {Attacking the f8 Bishop and double-attacking the c5-pawn} 3...Bxd7 ({Joshua} 3...Kc8 4.Nxf8 Ne7 5.Re1 Rxe1+ 6.Rxe1 {White is up a piece}) 4.Rxd7+ Kb6 5.Rd8 Ne7 6.Rb8+ Ka7 7.Rd1 a5 8.Rd7+ Ka6 9.Nxc5#

Correct solutions:
John - 20 points
Andy Y - 19 points
Joshua - 18 points
Andy Q, Humphrey, Marcus, Mark - 15 points
Karl - 12 points
Katerina, Jeremy, James, Wilson - 10 points

Standings:
John - 235 points
Joshua - 227 points
Andy Qian - 217 points
Mark - 213 points
Jeremy - 204 points
Karl - 180 points
Andy Yee - 171 points
James - 119 points
Wilson - 110 points
Humphrey - 104 points
Marcus - 89 points
Jacky - 80 points
Katerina - 72 points
Nathaniel - 42 points
Joanne - 21 points
Darren - 20 points