Chess Analysis Blog: December 2020

Thursday, December 31, 2020

Blumenfeld Counter Gambit

Blumenfeld counter-gambit analysis
vs.


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	c5
4.	d5	b5
5.	cxb5	Nxd5
6.	e4	Nf6

Click here for the continuation!

Blumenfeld Counter Gambit

Blumenfeld counter-gambit analysis
vs.


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	c5
4.	d5	b5
5.	cxb5	Nxd5
6.	e4	Nf6
7.	Nc3	d5
8.	e5	Nfd7
9.	Be2	a6

Click here for the continuation!

Blumenfeld Counter Gambit

Blumenfeld counter-gambit analysis
vs.


1
2
3
4
5
6
7
8

-1

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	c5
4.	d5	b5
5.	cxb5	Nxd5
6.	e4	Nf6
7.	Nc3	d5
8.	e5	Nfd7
9.	Be2	a6
10.	bxa6	Bxa6
11.	Bxa6	Nxa6
12.	O-O	Be7
13.	h3	O-O

Click here for the continuation!

Blumenfeld Counter Gambit

Blumenfeld counter-gambit analysis
vs.


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	c5
4.	d5	b5
5.	cxb5	Nxd5
6.	e4	Nf6
7.	Nc3	d5
8.	e5	Nfd7
9.	Be2	a6
10.	bxa6	Bxa6
11.	Bxa6	Nxa6
12.	O-O	Be7
13.	h3	O-O
14.	Bf4	c4
15.	b3	Qa5
16.	Ne2	Rfc8
17.	bxc4	Rxc4

Blumenfeld Counter Gambit

Blumenfeld counter-gambit analysis
vs.


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	c5
4.	d5	b5
5.	cxb5	Nxd5
6.	e4	Nf6
7.	Nc3	d5
8.	e5	Nfd7
9.	Be2	a6
10.	bxa6	Bxa6
11.	Bxa6	Nxa6
12.	O-O	Be7
13.	h3	O-O
14.	Bf4	c4
15.	b3	Qa5
16.	Ne2	Rfc8
17.	bxc4	Rxc4
18.	Ned4	Bc5
19.	Be3	Qc7
20.	Nb5	Qb8

Click here for the continuation!

Blumen-feld Counter Gambit

Blumenfeld counter-gambit analysis
vs.


1
2
3
4
5
6
7
8

-3

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	c5
4.	d5	b5
5.	cxb5	Nxd5
6.	e4	Nf6
7.	Nc3	d5
8.	e5	Nfd7
9.	Be2	a6
10.	bxa6	Bxa6
11.	Bxa6	Nxa6
12.	O-O	Be7
13.	h3	O-O
14.	Bf4	c4
15.	b3	Qa5
16.	Ne2	Rfc8
17.	bxc4	Rxc4
18.	Ned4	Bc5
19.	Be3	Qc7
20.	Nb5	Qb8
21.	Bxc5	Naxc5
22.	Nd6	Rca4
23.	Qc2	Nxe5

Click here for the continuation!

Monday, December 28, 2020

What is the strongest continuation for Black?

Utah Senior Championship, UU
Steve Gordon (2100) vs. John Coffey (2012)


1
2
3
4
5
6
7
8

(black to move)

1.	f4	e5
2.	fxe5	d6
3.	exd6	Bxd6
4.	Nf3	g5
5.	g3	g4
6.	Nh4	Ne7
7.	d4	Ng6
8.	Nxg6	hxg6
9.	Qd3	Nc6
10.	c3	Bf5
11.	e4	Qe7
12.	Bg2	O-O-O
13.	Nd2	Be6
14.	Nf1	f5
15.	Be3	Kb8
16.	d5	Ne5
17.	Qd4	c5
18.	Qd2	Nc4
19.	Bg5	Nxd2
20.	Bxe7	Bxe7
21.	Nxd2	Bf7
22.	c4	Bg5
23.	O-O-O	f4
24.	e5	f3
25.	Bf1	Bxd5
26.	cxd5	Rxd5
27.	Bc4	Rd4
28.	Be6	Rhd8
29.	Bxg4	Bxd2+
30.	Kc2	Rc4+
31.	Kb3	b5
32.	a3	Rd3+
33.	Ka2	Rxg4
34.	Kb1	c4

Thursday, December 17, 2020

White to play

World Championship 28th, Reykjavik
Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6

Click here for the continuation!

White to play

World Championship 28th, Reykjavik
Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6	fxe6
20.	e4	d4
21.	f4	Qe7
22.	e5

Click here for the continuation!

White to play

World Championship 28th, Reykjavik
Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6	fxe6
20.	e4	d4
21.	f4	Qe7
22.	e5	Rb8
23.	Bc4	Kh8
24.	Qh3	Nf8
25.	b3

Click here for the continuation!

White to play

World Championship 28th, Reykjavik
Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6	fxe6
20.	e4	d4
21.	f4	Qe7
22.	e5	Rb8
23.	Bc4	Kh8
24.	Qh3	Nf8
25.	b3	a5
26.	f5	exf5
27.	Rxf5	Nh7
28.	Rcf1	Qd8
29.	Qg3	Re7
30.	h4	Rbb7
31.	e6	Rbc7
32.	Qe5

Click here for the continuation!

White to play

World Championship 28th, Reykjavik
Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6	fxe6
20.	e4	d4
21.	f4	Qe7
22.	e5	Rb8
23.	Bc4	Kh8
24.	Qh3	Nf8
25.	b3	a5
26.	f5	exf5
27.	Rxf5	Nh7
28.	Rcf1	Qd8
29.	Qg3	Re7
30.	h4	Rbb7
31.	e6	Rbc7
32.	Qe5

Click here for the continuation!

White to play

World Championship 28th, Reykjavik
Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6	fxe6
20.	e4	d4
21.	f4	Qe7
22.	e5	Rb8
23.	Bc4	Kh8
24.	Qh3	Nf8
25.	b3	a5
26.	f5	exf5
27.	Rxf5	Nh7
28.	Rcf1	Qd8
29.	Qg3	Re7
30.	h4	Rbb7
31.	e6	Rbc7
32.	Qe5	Qe8
33.	a4	Qd8
34.	Rf1f2	Qe8
35.	Rf2f3

Click here for the continuation!

White to play

World Championship 28th, Reykjavik
Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6	fxe6
20.	e4	d4
21.	f4	Qe7
22.	e5	Rb8
23.	Bc4	Kh8
24.	Qh3	Nf8
25.	b3	a5
26.	f5	exf5
27.	Rxf5	Nh7
28.	Rcf1	Qd8
29.	Qg3	Re7
30.	h4	Rbb7
31.	e6	Rbc7
32.	Qe5	Qe8
33.	a4	Qd8
34.	Rf1f2	Qe8
35.	Rf2f3	Qd8
36.	Bd3	Qe8
37.	Qe4	Nf6
38.	Rxf6	gxf6
39.	Rxf6

Click here for the continuation!

White to play

World Championship 28th, Reykjavik
Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

-1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6	fxe6
20.	e4	d4
21.	f4	Qe7
22.	e5	Rb8
23.	Bc4	Kh8
24.	Qh3	Nf8
25.	b3	a5
26.	f5	exf5
27.	Rxf5	Nh7
28.	Rcf1	Qd8
29.	Qg3	Re7
30.	h4	Rbb7
31.	e6	Rbc7
32.	Qe5	Qe8
33.	a4	Qd8
34.	Rf1f2	Qe8
35.	Rf2f3	Qd8
36.	Bd3	Qe8
37.	Qe4	Nf6
38.	Rxf6	gxf6
39.	Rxf6	Kg8
40.	Bc4	Kh8
41.	Qf4	Qg8
42.	Rf8

Click here for the continuation!

White to lay

World Championship 28th, Reykjavik
Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

-1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6	fxe6
20.	e4	d4
21.	f4	Qe7
22.	e5	Rb8
23.	Bc4	Kh8
24.	Qh3	Nf8
25.	b3	a5
26.	f5	exf5
27.	Rxf5	Nh7
28.	Rcf1	Qd8
29.	Qg3	Re7
30.	h4	Rbb7
31.	e6	Rbc7
32.	Qe5	Qe8
33.	a4	Qd8
34.	Rf1f2	Qe8
35.	Rf2f3	Qd8
36.	Bd3	Qe8
37.	Qe4	Nf6
38.	Rxf6	gxf6
39.	Rxf6	Kg8
40.	Bc4	Kh8
41.	Qf4	Qg8
42.	Rf8	Re8
43.	Qf6+	Rg7
44.	e7	Rc8
45.	Bxg8

Click here for the continuation!

White to play

World Championship 28th, Reykjavik
Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6	fxe6
20.	e4	d4
21.	f4	Qe7
22.	e5	Rb8
23.	Bc4	Kh8
24.	Qh3	Nf8
25.	b3	a5
26.	f5	exf5
27.	Rxf5	Nh7
28.	Rcf1	Qd8
29.	Qg3	Re7
30.	h4	Rbb7
31.	e6	Rbc7
32.	Qe5	Qe8
33.	a4	Qd8
34.	Rf1f2	Qe8
35.	Rf2f3	Qd8
36.	Bd3	Qe8
37.	Qe4	Nf6
38.	Rxf6	gxf6
39.	Rxf6	Kg8
40.	Bc4	Kh8
41.	Qf4	Qg8
42.	Rf8	Re8
43.	Qf6+	Rg7
44.	e7	Rc8
45.	Bxg8	Rc6
46.	Be6+	Kh7
47.	Bf5+	Rg6
48.	Bxg6#

White to play

World Championship 28th, Reykjavik
Analysis of Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6	fxe6
20.	e4	c4
21.	Qh3	Qf7
22.	Bg4	Re8
23.	exd5	exd5
24.	Rce1	Ne5
25.	Bh5	g6
26.	Qg3	Kh7
27.	Rxe5

White to play

World Championship 28th, Reykjavik
Analysis of Fischer, Robert James (2785) vs. Spassky, Boris V (2660)


8
7
6
5
4
3
2
1

(white to move)

1.	c4	e6
2.	Nf3	d5
3.	d4	Nf6
4.	Nc3	Be7
5.	Bg5	O-O
6.	e3	h6
7.	Bh4	b6
8.	cxd5	Nxd5
9.	Bxe7	Qxe7
10.	Nxd5	exd5
11.	Rc1	Be6
12.	Qa4	c5
13.	Qa3	Rc8
14.	Bb5	a6
15.	dxc5	bxc5
16.	O-O	Ra7
17.	Be2	Nd7
18.	Nd4	Qf8
19.	Nxe6	fxe6
20.	e4	c4
21.	Qh3	Qf7
22.	Bg4	Re8
23.	exd5	exd5
24.	Rfe1	Rxe1+
25.	Rxe1	Nf8
26.	Qc3

Click here for 24. Rce1.

Wednesday, December 16, 2020

Black to play

?, ?
? vs. ?


1
2
3
4
5
6
7
8

(black to move)

1.	e4	c5
2.	Nf3	Nc6
3.	d4	cxd4
4.	Nxd4	Nf6
5.	Nc3	g6
6.	Be3	Bg7
7.	Nxc6	bxc6
8.	e5	Ng8
9.	f4	f6
10.	e6	d5
11.	f5	Qd6
12.	g4	Bh6
13.	Bd4	Bf4
14.	Qf3	h5
15.	h3	hxg4
16.	hxg4	Rxh1
17.	Qxh1	Bg3+
18.	Kd2	Bf4+
19.	Kd1	Qb4
20.	Qg1	c5

Click here for the continuation!

Black to play

?, ?
? vs. ?


1
2
3
4
5
6
7
8

(black to move)

1.	e4	c5
2.	Nf3	Nc6
3.	d4	cxd4
4.	Nxd4	Nf6
5.	Nc3	g6
6.	Be3	Bg7
7.	Nxc6	bxc6
8.	e5	Ng8
9.	f4	f6
10.	e6	d5
11.	f5	Qd6
12.	g4	Bh6
13.	Bd4	Bf4
14.	Qf3	h5
15.	h3	hxg4
16.	hxg4	Rxh1
17.	Qxh1	Bg3+
18.	Kd2	Bf4+
19.	Kd1	Qb4
20.	Qg1	c5
21.	Be3	Qxb2
22.	Rb1	Qxc3
23.	Bxf4	Qf3+

Black to play

?, ?
? vs. ?


1
2
3
4
5
6
7
8

(black to move)

1.	e4	c5
2.	Nf3	Nc6
3.	d4	cxd4
4.	Nxd4	Nf6
5.	Nc3	g6
6.	Be3	Bg7
7.	Nxc6	bxc6
8.	e5	Ng8
9.	f4	f6
10.	e6	d5
11.	f5	Qd6
12.	g4	Bh6
13.	Bd4	Bf4
14.	Qf3	h5
15.	h3	hxg4
16.	hxg4	Rxh1
17.	Qxh1	Bg3+
18.	Kd1	Qb4
19.	Qg1	Be5
20.	Ne2	Ba6
21.	Bxe5	fxe5

Click here for the continuation!

Black to play

?, ?
? vs. ?


1
2
3
4
5
6
7
8

-1

(black to move)

1.	e4	c5
2.	Nf3	Nc6
3.	d4	cxd4
4.	Nxd4	Nf6
5.	Nc3	g6
6.	Be3	Bg7
7.	Nxc6	bxc6
8.	e5	Ng8
9.	f4	f6
10.	e6	d5
11.	f5	Qd6
12.	g4	Bh6
13.	Bd4	Bf4
14.	Qf3	h5
15.	h3	hxg4
16.	hxg4	Rxh1
17.	Qxh1	Bg3+
18.	Kd1	Qb4
19.	Qg1	Be5
20.	Ne2	Ba6
21.	Bxe5	fxe5
22.	fxg6	Qxb2
23.	Rc1	Qb6
24.	Qh2	Qe3
25.	Qh7	O-O-O

Thursday, December 3, 2020

White to play

Casual Game, https://itsyourturn.com
John Coffey: Stay home as much vs. JUMPER


8
7
6
5
4
3
2
1

-1

(white to move)

1.	Nf3	d5
2.	d4	Nf6
3.	c4	c6
4.	Nc3	e6
5.	Bg5	Be7
6.	e3	Nbd7
7.	cxd5	exd5
8.	Bd3	Nf8
9.	O-O	Ne6
10.	Bh4	Qb6
11.	Rb1	O-O
12.	b4	a6
13.	a4	Qc7
14.	Qc2	h6
15.	b5	axb5
16.	axb5	Bd7
17.	bxc6	Bxc6
18.	Bxf6	Bxf6
19.	Nxd5	Bxd5
20.	e4	Qxc2
21.	Bxc2	Bc4
22.	Rfd1	b5
23.	e5	Be7
24.	d5	Nc5
25.	d6	Bd8
26.	Nd4	Rc8
27.	Nxb5	Bxb5
28.	Rxb5	Ne6
29.	Be4	Bh4
30.	g3	Bg5
31.	f4	Bd8
32.	f5	Ng5
33.	Bd5	Rc2
34.	Bg2	Ra2
35.	h4	Nh7
36.	Bd5	Ra5
37.	Rb7	Rc5
38.	e6	fxe6
39.	fxe6	Nf6
40.	Ba2	Kh7
41.	Bb1+	Kg8
42.	e7

Options:
	- allow legal moves only;
	- use short algebraic notation;
movement/animation speed: (slow) (fast)
	- show legal moves;

Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight

Options:
	- allow legal moves only;
	- use short algebraic notation;
movement/animation speed: (slow) (fast)
	- show legal moves;

Pawn promotion:
	- Queen
	- Rook
	- Bishop
	- Knight

Options:
	- allow legal moves only;
	- use short algebraic notation;
movement/animation speed: (slow) (fast)
	- show legal moves;