Chess Crackers
July/August 2010

The following represent a variety of positions by talented players of African descent. In the following diagrams, you're challenged to find the best line of play. Each position ends with decisive material gain or mate. Solve each of the four problems (as deep as possible) and check your answers by scrolling below. No peeking!!

No. 2

No. 1

Kassa Korley - GM Surya Ganguly
White to Move (after 26 a7-a5)

FM Shinsaku Uesugi - GM Amon Simutowe
Black to Move (after 36.Ne5-f3)

No. 3

No. 4

Justus Williams - FM Alex Barnett
White to Move (after 34 Rd8-d6)

FM Farai Mandizha - GM Surya Ganguly
White to Move (after 35...Qe8-g8)


Solutions

No. 1 Korley-Ganguly (2010 New York International, New York, USA)
This game would be the subject of Korley's first GM scalp. The talented 17-year old faced one of India's finest in the first round. This position had repeated when Korley had missed the winning move. However, after collecting himself, he found 27.Rxe5! and Ganguly resigned in live of 27fxe5 (27Qxe5 also loses) 28.Qg4+ and 29.Qxc8. (See game)

No. 2  Uesugi-Simutowe (2010 World Open, King of Prussia, USA)
Zambia vs. Japan in this World Open battle! Black hunkered down against the positional Catalan and allowed white to seized an impressive center. However, the Japanese national saw his center collapse under the weight of black's flank attack. On 34.Nf3, black played the devastating 34Rde8! after missing the move earlier. The pin on the e-file becomes deadly and black always has Ba6 and Bd3. Uesugi was losing a piece, but played on until move 49. (See game)

No. 3  Williams-Barnett (2010 World Open, King of Prussia, USA)
This was an impressive game by the 12-year star. White played well after 1.Nf3 b5!? 2. e4 Bb7. The game had a Sicilian theme and entered a line where white sacrifices a pawn to attack the black king. This is exactly what happened as black was forced to find exact moves to stay alive. Williams attacked beautifully and ended matters with a nice 35.Rf5+! Kg7 36.Qe5+! (See game)

No. 4  Mandizha-Ganguly (2010 New York International, New York, USA)
This was Ganguly's second loss of this tournament. Kassa Korley was Ganguly's first scalper. In this position, the Indian GM played aggressively and waited on Mandizha to make a mistake. He successfully waded through the complications and developed a nice spatial advantage. In the position, white had sacrificed the queen and gave it back for a positional advantage. The move is not easy to find, but 35.Kg3! gives white an overwhelming advantage in the ending. After 35Rxb2 36.R1d7 Rxa2 37.Bd5 Ra3+ 38.Kh2 black resigned. (See game)


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