Level
3-Bishop
Chess Diagram
[Event "Puzzle #28"][Date "2008.07.10"][Result "?-?"][SetUp "1"][FEN "2R5/4pp1k/2p2b2/2p2p1p/7P/5P2/4K3/8 b - - 0 46"]
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Going back to the Suttles book there's another interesting position at the end of the game O Castro - D Suttles, Nice, Olympiad 1974 (part of the book; used with permission). After a lot of maneuvering and with the result hanging on the edge of a knife, they arrived here (see diagram). White has just moved 46. Rc8 ... and it looks like at least 1 pawn is going down. Questions:
a) Analyse the position and decide what is the most likely result (5 points)
b) Come up with a possible line (no longer than 10 moves) at best play for both sides (5 points)
Total available points for this puzzle is 10. The answers will be published next week together with puzzle #29.
Puzzle #27 solution:
The answers for this week were very simple:
a) Yes, White should exchange the Rooks
b) Looking carefully at the position we can see that after the Rooks are exchanged, Black must eliminate the c-pawn; while it does that White manages to win all 3 Black pawns and the game
c) See solution for how the game continued:
[Event "Puzzle #27"][Date "2008.07.03"][Result "1-0"][SetUp "1"][FEN "3r4/3Pk2p/6p1/4p1P1/8/8/2P4P/3R3K b - - 0 43"]43...Rxd7 44.Rxd7+ Kxd7 45.Kg2 Ke6 46.Kf3 Kf5 47.h4 e4+ 48.Ke3 Ke5 {It looks like Black reached a dominant position first; however it is time for the c-pawn to prove its value} (48...Kg4? 49.Kxe4 Kxh4 50.Kf4 {White is winning}) 49.c4 Kf5 50.c5 Ke5 51.c6 Kd6 52.Kxe4 Kxc6 53.Ke5 {Black resigns as it cannot defend either of the g6- or h7-pawns anymore. Even the Grand Masters have their bad days}
Correct solutions:
John, Jacob, Jeremy, Wilson and Karl - 10 points
Joshua - 2 points
Standings:
18.0 John
14.0 Wilson
11.0 Jeremy
10.0 Joshua, Jacob, Karl
Going back to the Suttles book there's another interesting position at the end of the game O Castro - D Suttles, Nice, Olympiad 1974 (part of the book; used with permission). After a lot of maneuvering and with the result hanging on the edge of a knife, they arrived here (see diagram). White has just moved 46. Rc8 ... and it looks like at least 1 pawn is going down. Questions:
a) Analyse the position and decide what is the most likely result (5 points)
b) Come up with a possible line (no longer than 10 moves) at best play for both sides (5 points)
Total available points for this puzzle is 10. The answers will be published next week together with puzzle #29.
Puzzle #27 solution:
The answers for this week were very simple:
a) Yes, White should exchange the Rooks
b) Looking carefully at the position we can see that after the Rooks are exchanged, Black must eliminate the c-pawn; while it does that White manages to win all 3 Black pawns and the game
c) See solution for how the game continued:
[Event "Puzzle #27"][Date "2008.07.03"][Result "1-0"][SetUp "1"][FEN "3r4/3Pk2p/6p1/4p1P1/8/8/2P4P/3R3K b - - 0 43"]43...Rxd7 44.Rxd7+ Kxd7 45.Kg2 Ke6 46.Kf3 Kf5 47.h4 e4+ 48.Ke3 Ke5 {It looks like Black reached a dominant position first; however it is time for the c-pawn to prove its value} (48...Kg4? 49.Kxe4 Kxh4 50.Kf4 {White is winning}) 49.c4 Kf5 50.c5 Ke5 51.c6 Kd6 52.Kxe4 Kxc6 53.Ke5 {Black resigns as it cannot defend either of the g6- or h7-pawns anymore. Even the Grand Masters have their bad days}
Correct solutions:
John, Jacob, Jeremy, Wilson and Karl - 10 points
Joshua - 2 points
Standings:
18.0 John
14.0 Wilson
11.0 Jeremy
10.0 Joshua, Jacob, Karl
Complex endgame