The latest problem is like a tricky IQ test question ...
2021-01-30
Greenwood Chess Club: White to play and mate in 7
2021-01-29
2021-01-25
These 2 Words Will Evolve Your Chess
I use different words for the same type of thing designating different types of combinations. This is a relatively simple chess lesson, more on the level of Class C maybe, but I think that the examples he gives are interesting and it is good to be reminded of these concepts because they are easy to overlook.
2021-01-24
I Got BANNED From Chess Camp - YouTube
[Site "Brussels BEL"]
[Date "1991.08.24"]
[Round "9"]
[White "Vassily Ivanchuk"]
[Black "Artur Yusupov"]
[Result "0-1"]
[ECO "E67"]
[PlyCount "78"]
[EventDate "1991.08.24"]
1. c4 e5 2. g3 d6 3. Bg2 g6 4. d4 Nd7 5. Nc3 Bg7 6. Nf3 Ngf6 7. O-O O-O 8. Qc2
Re8 9. Rd1 c6 10. b3 Qe7 11. Ba3 e4 12. Ng5 e3 13. f4 (13. fxe3 Qxe3+) 13...
Nf8 14. b4 Bf5 15. Qb3 h6 16. Nf3 Ng4 {
With a knight possibly going to f2, and also planning on g5.} 17. b5 g5 {
Disregards the B pawn entirely.} (17... c5 18. Nd5) 18. bxc6 bxc6 19. Ne5 {
Absolutely fascinating.} gxf4 (19... Nxe5 20. fxe5 {is great for White.}) (
19... Bxe5 {weakens the kingside.}) 20. Nxc6 Qg5 21. Bxd6 {Aiming toward g3.}
Ng6 {Gets another piece invovled.} 22. Nd5 (22. gxf4 Qh4 {wins.}) 22... Qh5 {
The simplest apporach.} 23. h4 (23. h3 Nf2) 23... Nxh4 24. gxh4 Qxh4 {
Black has a scary attack.} 25. Nde7+ {This is the wrong knight.} (25. Nce7+ Kh8
26. Nxf5 Qh2+ 27. Kf1 Re6 28. Qb7 Rg6 29. Qxa8+ Kh7 30. Bxf4 {
The key difference is that the knight is on d5.}) 25... Kh8 26. Nxf5 Qh2+ 27.
Kf1 Re6 {The rook is going to join the attack.} 28. Qb7 {A beautiful move.} Rg6
29. Qxa8+ Kh7 30. Qg8+ {The only move that doesn't lose immediately.} (30. Nce7
Qh1+ 31. Bxh1 Nh2+ 32. Ke1 Rg1#) 30... Kxg8 31. Nce7+ Kh7 32. Nxg6 fxg6 33.
Nxg7 Nf2 {With the threat of Nh3.} 34. Bxf4 {
The only move to not lose the game.} Qxf4 35. Ne6 Qh2 {
Repeats the threat of Nf3.} 36. Rdb1 Nh3 37. Rb7+ Kh8 38. Rb8+ Qxb8 39. Bxh3
Qg3 {Black gets mate anyway.} 0-1
--
Best wishes,John Coffey
2021-01-23
Nice finish
[Event "Casual Game"]
[Site "https://itsyourturn.com"]
[Date "2021.01.17"]
[Round "*"]
[White "John Coffey"]
[Black "chepillo"]
[Result "1-0"]
[Ply "65"]
1. Nf3 d6 2. d4 c6 3. c4 e6 4. e4 Be7 5. Nc3 d5 6. e5
b6 7. cxd5 cxd5 8. a3 Ba6 9. Bxa6 Nxa6 10. Qa4+ Kf8
11. Qxa6 Qd7 12. Qb5 Qc7 13. Be3 Bd8 14. Rc1 Qb7 15. O-O
Ne7 16. Bg5 a6 17. Qb4 h6 18. Bf6 gxf6 19. exf6 Ke8
20. fxe7 Bxe7 21. Qa4+ b5 22. Qc2 Kd7 23. Ne5+ Ke8
24. f4 Rg8 25. Qh7 Rf8 26. Qxh6 Kd8 27. f5 Kc7 28. fxe6
Rh8 29. Nxd5+ Kd6 30. Nxf7+ Kxd5 31. Rf5+ Kxd4 32. Qd2+
Ke4 33. Rf4# 1-0
[Site "https://itsyourturn.com"]
[Date "2021.01.17"]
[Round "*"]
[White "John Coffey"]
[Black "chepillo"]
[Result "1-0"]
[Ply "65"]
1. Nf3 d6 2. d4 c6 3. c4 e6 4. e4 Be7 5. Nc3 d5 6. e5
b6 7. cxd5 cxd5 8. a3 Ba6 9. Bxa6 Nxa6 10. Qa4+ Kf8
11. Qxa6 Qd7 12. Qb5 Qc7 13. Be3 Bd8 14. Rc1 Qb7 15. O-O
Ne7 16. Bg5 a6 17. Qb4 h6 18. Bf6 gxf6 19. exf6 Ke8
20. fxe7 Bxe7 21. Qa4+ b5 22. Qc2 Kd7 23. Ne5+ Ke8
24. f4 Rg8 25. Qh7 Rf8 26. Qxh6 Kd8 27. f5 Kc7 28. fxe6
Rh8 29. Nxd5+ Kd6 30. Nxf7+ Kxd5 31. Rf5+ Kxd4 32. Qd2+
Ke4 33. Rf4# 1-0
How To Checkmate With Bishop and Knight EASY (not really)
My knowledge of the Bishop and Knight mate was not complete. I've pulled it off a couple of times, but not against what I think is the best defense.
About 6.5 minutes into this video, he assumes that the Black king runs back toward the wrong corner. However, this makes White's job easier.
https://www.youtube.com/watch?v=UpzbiSUx2_4
I always had trouble if the King runs the other way, which is to d8 and c7. I had a general idea of what to do, but I hadn't practiced it enough to have mastered it, until now.
In the following sequence, moves 15 to 26 are the key idea. Learn this sequence and the mate becomes easier.
[Event "Blitz:5'+2""]
[Site "?"]
[Date "2021.01.23"]
[Round "?"]
[White "Coffey, John"]
[Black "Stockfish 12"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/8/8/8/4k3/8/8/4KBN1 w - - 0 0"]
[PlyCount "59"]
[EventType "blitz"]
1. Kd2 Kd4 2. Bd3 Kd5 3. Ne2 Kc5 4. Ke3 Kb4 5. Kd4 Kb3 6. Be4 Kb2 7. Kc4 Ka1 8.
Kc3 Ka2 9. Nd4 Ka1 10. Nb3+ Ka2 11. Bf5 Ka3 12. Bb1 Ka4 13. Nd4 Ka5 14. Kc4 Kb6
15. Nb5 Kb7 16. Bf5 Kc6 17. Be6 Kb6 18. Bd7 Ka5 19. Kc5 { Some knight moves mate 1
move faster, but I like the simplicity of moving the king.} Ka4
20. Be6 Ka5 21. Bb3 Ka6 22. Nd6 Ka5 (22... Ka7 23. Bc4 Kb8 24. Kb6 Ka8 25. Kc7
Ka7 26. Nc8+ Ka8 27. Bd5#) 23. Nb7+ Ka6 24. Kc6 Ka7 25. Kc7 Ka6 26. Bc4+ Ka7
27. Nd6 Ka8 28. Bd3 Ka7 29. Nc8+ Ka8 30. Be4# 1-0
There is an alternative method where you use your three pieces to make a diagonal shaped wedge, and you try to force the enemy king into a smaller wedge. Although supposedly simpler to understand, in practice I find that I can become confused on how to play it. The cool thing about the above game is that you are almost guaranteed to reach the position after White's move 14, although possibly on a different edge of the board. From there you just need to know the sequence to finish it.
About 6.5 minutes into this video, he assumes that the Black king runs back toward the wrong corner. However, this makes White's job easier.
https://www.youtube.com/watch?v=UpzbiSUx2_4
I always had trouble if the King runs the other way, which is to d8 and c7. I had a general idea of what to do, but I hadn't practiced it enough to have mastered it, until now.
In the following sequence, moves 15 to 26 are the key idea. Learn this sequence and the mate becomes easier.
[Event "Blitz:5'+2""]
[Site "?"]
[Date "2021.01.23"]
[Round "?"]
[White "Coffey, John"]
[Black "Stockfish 12"]
[Result "1-0"]
[SetUp "1"]
[FEN "8/8/8/8/4k3/8/8/4KBN1 w - - 0 0"]
[PlyCount "59"]
[EventType "blitz"]
1. Kd2 Kd4 2. Bd3 Kd5 3. Ne2 Kc5 4. Ke3 Kb4 5. Kd4 Kb3 6. Be4 Kb2 7. Kc4 Ka1 8.
Kc3 Ka2 9. Nd4 Ka1 10. Nb3+ Ka2 11. Bf5 Ka3 12. Bb1 Ka4 13. Nd4 Ka5 14. Kc4 Kb6
15. Nb5 Kb7 16. Bf5 Kc6 17. Be6 Kb6 18. Bd7 Ka5 19. Kc5 { Some knight moves mate 1
move faster, but I like the simplicity of moving the king.} Ka4
20. Be6 Ka5 21. Bb3 Ka6 22. Nd6 Ka5 (22... Ka7 23. Bc4 Kb8 24. Kb6 Ka8 25. Kc7
Ka7 26. Nc8+ Ka8 27. Bd5#) 23. Nb7+ Ka6 24. Kc6 Ka7 25. Kc7 Ka6 26. Bc4+ Ka7
27. Nd6 Ka8 28. Bd3 Ka7 29. Nc8+ Ka8 30. Be4# 1-0
There is an alternative method where you use your three pieces to make a diagonal shaped wedge, and you try to force the enemy king into a smaller wedge. Although supposedly simpler to understand, in practice I find that I can become confused on how to play it. The cool thing about the above game is that you are almost guaranteed to reach the position after White's move 14, although possibly on a different edge of the board. From there you just need to know the sequence to finish it.
2021-01-14
2021-01-09
2021-01-07
Game against 11 year old USCF 1783 from San Diego
It is a simplistic game and the kid blundered at the end. I just thought it interesting that this kid is rated 1783 USCF. He wants to play me a G/60 sometime, so I might do that.
[Event "Live Chess"]
[Site "Chess.com"]
[Date "2021.01.08"]
[Round "-"]
[White "john2001plus"]
[Black "Lukachess236"]
[Result "1-0"]
[CurrentPosition "r2qk2r/pp2bppp/3Q1n2/8/1n6/2N2N2/PP3PPP/R1B1R1K1 w kq -"]
[Timezone "UTC"]
[ECO "B27"]
[ECOUrl "https://www.chess.com/openings/Sicilian-Defense-2.Nf3"]
[UTCDate "2021.01.08"]
[UTCTime "02:01:57"]
[WhiteElo "1998"]
[BlackElo "1821"]
[TimeControl "600"]
[Termination "john2001plus won by resignation"]
[StartTime "02:01:57"]
[EndDate "2021.01.08"]
[EndTime "02:08:02"]
[Link "https://www.chess.com/live/game/6173533919"]
1. Nf3 c5 2. e4 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 cxd4 6. cxd4 Nf6 7. Nc3 Qa5 8.
d5 Nb4 9. Bb5+ Bd7 10. Bxd7+ Nxd7 11. O-O Nf6 12. d6 exd6 13. Re1+ Be7 14. Qxd6
Qd8 1-0
[Site "Chess.com"]
[Date "2021.01.08"]
[Round "-"]
[White "john2001plus"]
[Black "Lukachess236"]
[Result "1-0"]
[CurrentPosition "r2qk2r/pp2bppp/3Q1n2/8/1n6/2N2N2/PP3PPP/R1B1R1K1 w kq -"]
[Timezone "UTC"]
[ECO "B27"]
[ECOUrl "https://www.chess.com/openings/Sicilian-Defense-2.Nf3"]
[UTCDate "2021.01.08"]
[UTCTime "02:01:57"]
[WhiteElo "1998"]
[BlackElo "1821"]
[TimeControl "600"]
[Termination "john2001plus won by resignation"]
[StartTime "02:01:57"]
[EndDate "2021.01.08"]
[EndTime "02:08:02"]
[Link "https://www.chess.com/live/game/6173533919"]
1. Nf3 c5 2. e4 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 cxd4 6. cxd4 Nf6 7. Nc3 Qa5 8.
d5 Nb4 9. Bb5+ Bd7 10. Bxd7+ Nxd7 11. O-O Nf6 12. d6 exd6 13. Re1+ Be7 14. Qxd6
Qd8 1-0
The chess.com analysis feature didn't like some of my moves, but I won anyway.
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