Monday, December 14, 2020

Black to play and win

Chess.com Live Chess, Chess.com
Analysis of DanteJohn (1813) vs. john2001plus (2038)
1
2
3
4
5
6
7
8
hgfedcba
0
(black to move)
1.e4c5
2.Nf3Nc6
3.d4cxd4
4.Nxd4Nf6
5.Nc3g6
6.Be3Bg7
7.f3O-O
8.Qd2d5
9.exd5Nxd5
10.Nxd5Qxd5
11.Nxc6Qxc6
12.O-O-OBe6
13.Kb1Rac8
14.Be2Qa4
15.a3Ba2+
16.Kxa2Rxc2
17.Bb5Rxd2
18.Bxa4Rxb2+
19.Ka1Rb3+
20.Ka2Rxe3
 
Click here for 15. Kc1.

Friday, December 11, 2020

White to play

European Club Cup, Rethymnon GRE
Magnus Carlsen (2385) vs. Helgi Ass Gretarsson (2513)
8
7
6
5
4
3
2
1
abcdefgh
-2
(white to move)
1.d4d5
2.c4c6
3.Nf3Nf6
4.Nc3e6
5.e3Nbd7
6.Qc2Bd6
7.g4Nxg4
8.Rg1Qf6
9.Rxg4Qxf3
10.Rxg7Nf6
11.Bg2Qh5
12.e4dxe4
13.Bg5Bf8
14.Bxf6Bxg7
15.Bxg7Rg8
16.Nxe4Qa5+
17.Kf1Rxg7
18.Qc1Qd8
19.Qf4Kf8
20.Qe5Rg6
21.Qh8+Ke7
22.Qxh7Qg8
23.Qh4+f6
24.Bf3e5
25.b3exd4
26.Ng3Bg4
27.Re1+Kf7
28.Be4Rg7
29.h3Bd7
30.Qh5+Kf8
31.Qc5+Kf7
32.Bg6+
 

Tuesday, November 24, 2020

Mate in 3 chess problem from the Netflix series "The Queen's Gambit".



I have not yet watched the Netflix series, "The Queen's Gambit", but in episode 6 this composed chess problem was presented to the character Beth Harmon to solve. White to play and mate in 3 moves. I saw it on a youtube video. Almost every chess game in that show has been analyzed extensively on youtube.

Composed mate in 3 problems can be quite difficult to solve, but I've solved this one faster than any composed mate in 3 that I have solved before. Like 20 seconds. The Black pieces have few moves available making the puzzle easier. I asked myself, what would happen if the Black King ran away to h6 or f8, or what if the Black King just ended up on its original square?

Some really difficult composed chess problems have taken me 30 to 60 minutes to solve. I have a knack for Mate in 2 problems, but Mate in 3's can be exponentially more complicated.

--

Monday, November 16, 2020

Black to play




Puzzle of the Day! 
Solve this puzzle on interactive board: chesspuzzle.net/Puzzle/158334

Sunday, November 8, 2020

White to play

London Chess Classic Open, London ENG
Sophie Milliet (2356) vs. Steven A Jones (2160)
8
7
6
5
4
3
2
1
abcdefgh
+1
(white to move)
1.e4c5
2.Nf3Nc6
3.Bb5d6
4.d4cxd4
5.Qxd4Bd7
6.Bxc6Bxc6
7.Nc3h6
8.Qd3e5
9.Nd2Nf6
10.Nc4b5
11.Ne3Rc8
12.Ned5Bxd5
13.Nxd5Nxd5
14.Qxb5+Qd7
15.Qxd5Rxc2
16.Qb3Rc8
17.O-OBe7
18.Qg3Bf6
19.Rd1Qe7
20.b3Rc6
21.Rd5Qc7
22.Bd2Ke7
23.Rd1Rc5
24.Qd3Rb8
25.Rxc5Qxc5
26.Rc1Qb6
27.Qd5Qb7
28.Rc6Qd7
29.Qc4Rb7
30.Ba5Qe6
31.Qa6Rd7
32.Bb4Bg5
33.Qa5f5
34.Rxd6Rxd6
35.Qc7+Kf6
36.Qxd6fxe4
37.Qxe6+Kxe6
38.Kf1Kd5
39.Ke2Kd4
40.Bd2e3
41.fxe3+Ke4
42.b4Be7
43.a4g6
44.b5Bd6
45.h3Be7
46.a5Kd5
47.e4+Kc5
48.b6axb6
49.Bb4+
 
Click here for 47. Kxe4.

Friday, October 30, 2020

Black to play

Mar del Plata, Mar del Plata ARG
Bernardo Wexler (?) vs. Osvaldo Manuel Bazan (?)
1
2
3
4
5
6
7
8
hgfedcba
-3
(black to move)
1.c4Nf6
2.g3e5
3.Bg2c6
4.Nc3d5
5.cxd5cxd5
6.Qb3e4
7.d3exd3
8.Nxd5Nxd5
9.Bxd5Bb4+
10.Kf1dxe2+
11.Nxe2O-O
12.Be3Bh3+
13.Kg1Qe7
14.a3Bd6
15.Bxb7Nd7
16.Bxa8Rxa8
17.Qd5Rd8
18.Qh5Bc5
19.Nd4Bxd4
20.Bxd4Qe6
21.Bc3Nf6
22.Qf3Rd5
23.Re1Qc6
24.Bxf6gxf6
25.g4Rd1
 

Tuesday, October 27, 2020

Friday, October 16, 2020

Tricky Ending

Most King and Pawn endings are relatively simple to play, but there are exceptions called "corresponding square" positions that are technically very complicated. Most players below the level of Expert wouldn't even know that these endings exist. I have had a couple of these kinds of endings memorized for around 25 years, but this particular ending I did not know. My first impression looking at the position is that the game would be a draw. As White, Grandmaster Firouzja lost to the world champion Magnus Carlsen because he did not find the correct move here. The right move is counterintuitive. However, I would assume that most professional players would know these positions by heart.  


Saturday, October 10, 2020

A bad opening goes very bad





[Event "Casual Game"]
[Site "https://itsyourturn.com"]
[Date "2020.09.22"]
[Round "?"]
[White "John Coffey"]
[Black "francishenryd"]
[Result "1-0"]
[ECO "D07"]
[WhiteElo "2016"]
[PlyCount "33"]
[EventDate "2020.09.22"]

1. Nf3 d5 2. d4 Nc6 3. c4 Nf6 4. cxd5 Qxd5 5. Nc3 Qd8 6. d5 Nb4 7. Qa4+ Bd7 8.
Qxb4 b6 9. Qb3 e6 10. e4 exd5 11. e5 Ne4 12. Qxd5 Nxc3 13. bxc3 Be6 14. Bb5+
Bd7 15. Bxd7+ Ke7 16. Ba3+ c5 17. Qd6# 1-0

Sunday, September 6, 2020


Black to move and win. GM Boris Gelfand of Israel (White) vs GM Hikaru Nakamura of USA (Black) in 2010. Can you find a winning move for Black?

Wednesday, August 26, 2020

Black to play

DDR-ch 13th, Aschersleben
Juergen Maedler (?) vs. Wolfgang Uhlmann (?)
1
2
3
4
5
6
7
8
hgfedcba
+2
(black to move)
1.d4Nf6
2.c4g6
3.Nc3d5
4.cxd5Nxd5
5.e4Nxc3
6.bxc3Bg7
7.Bc4O-O
8.Ne2Nc6
9.O-Ob6
10.Be3Bb7
11.Qd2Na5
12.Bd3c5
13.Bh6cxd4
14.cxd4Rc8
15.Rfc1Bxh6
16.Qxh6Qd6
17.h4Nc6
18.Rd1Qf6
19.Bb5Rfd8
20.Bxc6Rxc6
21.e5Qf5
22.Ng3Qg4
23.d5Rc5
24.d6Rxe5
25.Rac1Rxd6
26.Rxd6exd6
27.Rc7Re1+
28.Kh2Rh1+
 

White to play and win

This takes some effort to solve.

White to win

Black to Win

White to play.

Nice!