Chess Analysis Blog: October 2019

Monday, October 21, 2019

White to play

Let's Play!, Chess.com
soitgoes317 (1851) vs. Caissarius (1798)


8
7
6
5
4
3
2
1

(white to move)

1.	e4	c5
2.	Nf3	d6
3.	d4	cxd4
4.	Nxd4	a6
5.	Nc3	b5
6.	g3	Bb7
7.	Bg2	Nf6
8.	O-O	e6
9.	Re1	Nbd7
10.	a4	b4
11.	Nd5	e5
12.	Nf5	g6
13.	Nxf6+	Nxf6
14.	Ne3	a5
15.	Nc4

White to play

Let's Play!, Chess.com
soitgoes317 (1851) vs. Caissarius (1798)


8
7
6
5
4
3
2
1

(white to move)

1.	e4	c5
2.	Nf3	d6
3.	d4	cxd4
4.	Nxd4	a6
5.	Nc3	b5
6.	g3	Bb7
7.	Bg2	Nf6
8.	O-O	e6
9.	Re1	Nbd7
10.	a4	b4
11.	Nd5	exd5
12.	exd5+	Be7
13.	Nf5	Ne5
14.	Nxg7+	Kf8
15.	Bh6	Kg8
16.	Nf5	Bf8
17.	Qd2	Nfd7
18.	Bxf8	Qxf8
19.	Qg5+	Ng6
20.	Nh6+	Kg7
21.	Re7	Bc8
22.	Rae1	Nde5
23.	Re1xe5	dxe5
24.	d6	Be6
25.	Bxa8	Qxa8
26.	Rxf7+	Bxf7
27.	Nf5+	Kg8
28.	Qf6	Qf8
29.	d7	h6
30.	d8=Q	Be8
31.	Qxe8	Rh7
32.	Qfxg6+	Rg7
33.	Qxg7#

Click here for 11... e5.

White to play

Let's Play!, Chess.com
soitgoes317 (1851) vs. Caissarius (1798)


8
7
6
5
4
3
2
1

-3

(white to move)

1.	e4	c5
2.	Nf3	d6
3.	d4	cxd4
4.	Nxd4	a6
5.	Nc3	b5
6.	g3	Bb7
7.	Bg2	Nf6
8.	O-O	e6
9.	Re1	Qc7
10.	Nd5	Nxd5
11.	exd5	e5
12.	f4	Nd7
13.	Nc6	g6
14.	Bd2	a5
15.	a4	b4
16.	c3	bxc3
17.	Bxc3	Bg7
18.	Qd2	O-O
19.	Bxa5	Rxa5
20.	Qxa5

White to play.

Let's Play!, Chess.com
soitgoes317 (1851) vs. Caissarius (1798)


8
7
6
5
4
3
2
1

-3

(white to move)

1.	e4	c5
2.	Nf3	d6
3.	d4	cxd4
4.	Nxd4	a6
5.	Nc3	b5
6.	g3	Bb7
7.	Bg2	Nf6
8.	O-O	e6
9.	Re1	Qc7
10.	Nd5	exd5
11.	exd5+	Kd8
12.	a4	b4
13.	Bg5	Nbd7
14.	c3	bxc3
15.	Rc1	a5
16.	Rxc3	Nc5
17.	Nb5	Qd7
18.	Qe2	Ba6
19.	Bh3	Bxb5
20.	axb5	Qb7
21.	Qe8+	Kc7
22.	Rxc5+	dxc5
23.	Qxf7+	Kb8
24.	Bf4+	Ka7
25.	Bc7	a4
26.	b6+	Ka6
27.	d6	Qc6
28.	Bf1+	c4
29.	Rc1	Kb5
30.	Rxc4	Qd5
31.	Rc3+	Kb4
32.	b7	Qxf7
33.	bxa8=Q	Qd5
34.	Qb8+

White to play

Let's Play!, Chess.com
soitgoes317 (1851) vs. Caissarius (1798)


8
7
6
5
4
3
2
1

-3

(white to move)

1.	e4	c5
2.	Nf3	d6
3.	d4	cxd4
4.	Nxd4	a6
5.	Nc3	b5
6.	g3	Bb7
7.	Bg2	Nf6
8.	O-O	e6
9.	Re1	Qc7
10.	Nd5	Qd8
11.	Bg5	e5
12.	Bxf6	gxf6
13.	Qh5	exd4
14.	e5	Bxd5
15.	exf6+	Kd7
16.	Qxd5	Qxf6
17.	Qb7+	Kd8
18.	Qb6+	Kd7
19.	Bh3+

White to play

Let's Play!, Chess.com
soitgoes317 (1851) vs. Caissarius (1798)


8
7
6
5
4
3
2
1

(white to move)

1.	e4	c5
2.	Nf3	d6
3.	d4	cxd4
4.	Nxd4	a6
5.	Nc3	b5
6.	g3	Bb7
7.	Bg2	Nf6
8.	O-O	e6
9.	Re1	Qc7
10.	Nd5	Qd8
11.	Bg5	e5
12.	Bxf6	gxf6
13.	Qh5	Bxd5
14.	exd5	Ra7
15.	Re3	Qb6
16.	Ne6	Ke7
17.	Rc3	fxe6
18.	Rc8	Bg7
19.	Rxh8	Bxh8
20.	Qxh7+	Kd8
21.	Qxh8+	Kc7
22.	dxe6

click here for 13... exd4.

Sunday, October 20, 2019

White to play

Let's Play!, Chess.com
soitgoes317 (1851) vs. Caissarius (1798)


8
7
6
5
4
3
2
1

(white to move)

1.	e4	c5
2.	Nf3	d6
3.	d4	cxd4
4.	Nxd4	a6
5.	Nc3	b5
6.	g3	Bb7
7.	Bg2	Nf6
8.	O-O	e6
9.	Re1	Qc7
10.	Nd5	Qd8
11.	Bg5	Be7
12.	Nxe7	Qxe7
13.	Nf5	Qd7
14.	Nxg7+	Kd8
15.	Bxf6+	Kc8
16.	Nxe6	Re8
17.	Ng7	Rg8
18.	Qh5	Kc7
19.	Bh3	Qc6
20.	Qxf7+	Nd7
21.	Ne6+	Kb6
22.	Bd4+	Nc5
23.	b4

What is the strongest continuation for White?

Let's Play!, Chess.com
soitgoes317 (1851) vs. Caissarius (1798)


8
7
6
5
4
3
2
1

(white to move)

1.	e4	c5
2.	Nf3	d6
3.	d4	cxd4
4.	Nxd4	a6
5.	Nc3	b5
6.	g3	Bb7
7.	Bg2	Nf6
8.	O-O	e6
9.	Re1	Qc7
10.	Nd5	Qd8
11.	Bg5	Be7
12.	Nxe7	Qxe7
13.	Nf5	Qd7
14.	Nxg7+	Kf8
15.	Bxf6	h6
16.	Qg4	Rh7
17.	Nh5	Qc6
18.	Bg7+	Ke7
19.	Qh4+	Kd7
20.	Nf6+

Saturday, October 19, 2019

White to play for equality

Blitz:4'+2, ?
Coffey, John vs. Stockfish 10


8
7
6
5
4
3
2
1

(white to move)

1.	Nf3	Nf6
2.	d4	g6
3.	c4	Bg7
4.	Nc3	d5
5.	cxd5	Nxd5
6.	e4	Nxc3
7.	bxc3	c5
8.	Be3	Qa5
9.	Qd2	Nc6
10.	Rc1	cxd4
11.	cxd4	Qxd2+
12.	Kxd2	O-O
13.	d5	Rd8
14.	Ke1	Na5
15.	Bg5	Bd7
16.	Bd3	f5
17.	e5	Be8
18.	d6	Rdc8
19.	Kd2	exd6
20.	exd6	Bf8
21.	Be7	Bxe7
22.	dxe7	Rxc1
23.	Rxc1	Nc6
24.	Re1	Kg7
25.	Bc4	Bd7
26.	Bb5	Re8
27.	Nd4	Kf6
28.	Bxc6	Bxc6
29.	Nxc6	bxc6
30.	Rc1	Rxe7
31.	Rxc6+

Black to play for a win

Blitz:4'+2, ?
Stockfish 10 64 POPCNT vs. John


1
2
3
4
5
6
7
8

(black to move)

1.	e4	e6
2.	d4	d5
3.	Nc3	Nf6
4.	e5	Nfd7
5.	Nce2	c5
6.	c3	Nc6
7.	f4	Qb6
8.	Nf3	cxd4
9.	Nexd4	Nxd4
10.	Nxd4	Bc5
11.	Rb1	O-O
12.	Be3	f6
13.	b4	Bxd4
14.	Bxd4	Qc7
15.	Qh5	fxe5
16.	fxe5	g6
17.	Qg5	Rf5
18.	Qg3	Nxe5
19.	Bb5	a6
20.	Rf1	axb5
21.	Rxf5	exf5
22.	Qxe5	Qxe5+
23.	Bxe5	Rxa2
24.	Rd1	Be6
25.	Kf1	Kf7
26.	Bf4	Kf6
27.	Be3	g5
28.	Bd4+	Kf7
29.	h3	h5
30.	Re1	f4
31.	h4	gxh4
32.	Be5	h3
33.	gxh3	Bxh3+
34.	Kg1	f3
35.	Bd4	Rg2+
36.	Kh1	Re2
37.	Rxe2	fxe2
38.	Bf2	Ke6
39.	Be1	Kf5
40.	Kg1	Ke4
41.	Kf2	Bg4
42.	Kg3	Kd3
43.	Kf2	Kc2
44.	Kg3	Kd1
45.	Kf2	h4

White to play for at least equality

Blitz:4'+2, ?
John vs. Stockfish 10 64 POPCNT


8
7
6
5
4
3
2
1

-1

(white to move)

1.	Nf3	Nf6
2.	d4	d5
3.	c4	e6
4.	Nc3	Bb4
5.	Bg5	dxc4
6.	e4	c5
7.	e5	cxd4
8.	Nxd4	Qa5
9.	Rc1	Ne4
10.	Bd2	Nxd2
11.	Qxd2	Nc6
12.	Nxc6	bxc6
13.	Bxc4	Qxe5+
14.	Be2	Be7
15.	O-O	Rb8
16.	Rfe1	Qc7
17.	Bf3	Bb7
18.	Nb5	Qd7
19.	Qxd7+	Kxd7
20.	Red1+	Ke8
21.	Bxc6+

White to play

Blitz:4'+2, ?
John vs. Stockfish 10


8
7
6
5
4
3
2
1

-1

(white to move)

1.	Nf3	Nf6
2.	d4	d5
3.	c4	e6
4.	Nc3	Bb4
5.	Bg5	dxc4
6.	e4	c5
7.	e5	cxd4
8.	Nxd4	Qa5
9.	Rc1	Ne4
10.	Bd2	Nxd2
11.	Qxd2	Nc6
12.	Nxc6	bxc6
13.	Bxc4	Qxe5+
14.	Be2	Be7
15.	O-O	Rb8
16.	Rfe1	Qc7
17.	Bf3	Bb7
18.	Ne4	O-O
19.	Nc5	Bc8
20.	Rc3	Qa5
21.	Nb3	Qa6
22.	Be2

Black to play for a slight advantage

Blitz:4'+2, ?
Stockfish 10 64 POPCNT vs. John


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	b6
4.	g3	Bb7
5.	Bg2	d5
6.	O-O	Nbd7
7.	Ng5	h6
8.	Nh3	c5
9.	Nc3	cxd4
10.	Qxd4	Bc5
11.	Qd1	Ne5
12.	b4	Be7
13.	cxd5	Nxd5
14.	Nxd5	Bxd5
15.	Qa4+	Qd7
16.	Qxd7+	Nxd7
17.	Bd2	Bxg2
18.	Kxg2	Rc8
19.	Rac1	O-O
20.	Nf4	Ne5
21.	Nd3	Nxd3
22.	exd3	Bf6
23.	a4	Rcd8
24.	Be3	Rxd3
25.	a5	Bc3
26.	axb6	axb6
27.	Bxb6	Bxb4

Black to play for a slight advantage

Blitz:4'+2, ?
Stockfish 10 64 POPCNT vs. John


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	b6
4.	g3	Bb7
5.	Bg2	d5
6.	O-O	Nbd7
7.	Ng5	h6
8.	Nh3	c5
9.	Nc3	cxd4
10.	Qxd4	Bc5
11.	Qd1	Ne5
12.	b4	Be7
13.	cxd5	Nxd5
14.	Nxd5	Bxd5
15.	Qa4+	Qd7
16.	Qxd7+	Nxd7
17.	Bd2	Bxg2
18.	Kxg2	Rc8
19.	Rac1	O-O
20.	Nf4	Ne5
21.	Nd3	Nxd3
22.	exd3	Bf6
23.	a4	Rfd8
24.	a5	Rxc1
25.	Rxc1	bxa5
26.	bxa5	Rxd3

Black to play

Blitz:4'+2, ?
Stockfish 10 64 POPCNT vs. John


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	b6
4.	g3	Bb7
5.	Bg2	d5
6.	O-O	Nbd7
7.	Ng5	h6
8.	Nh3	c5
9.	Nc3	cxd4
10.	Qxd4	Bc5
11.	Qd1	Ne5
12.	b4	Be7
13.	cxd5	Nxd5
14.	Nxd5	Bxd5
15.	Qa4+	Qd7
16.	Qxd7+	Nxd7
17.	Bd2	Bxg2
18.	Kxg2	Rc8
19.	Rac1	O-O
20.	Nf4	Ne5
21.	Nd3	Nxd3
22.	exd3	Bf6
23.	a4	Rfd8
24.	a5	bxa5
25.	Rxc8	Rxc8
26.	bxa5	Rd8
27.	Be3	Rxd3
28.	Rb1	Ra3
29.	Rb8+	Kh7
30.	Rb7	Rxa5
31.	Rxf7	a6

Black to play and draw

Blitz:4'+2, ?
Stockfish 10 64 POPCNT vs. John


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	b6
4.	g3	Bb7
5.	Bg2	d5
6.	O-O	Nbd7
7.	Ng5	h6
8.	Nh3	c5
9.	Nc3	cxd4
10.	Qxd4	Bc5
11.	Qd1	Ne5
12.	b4	Be7
13.	cxd5	Nxd5
14.	Nxd5	Bxd5
15.	Qa4+	Qd7
16.	Qxd7+	Nxd7
17.	Bd2	Bxg2
18.	Kxg2	Rc8
19.	Rac1	O-O
20.	Nf4	Ne5
21.	Nd3	Nxd3
22.	exd3	Bf6
23.	a4	Rfd8
24.	a5	bxa5
25.	Rxc8	Rxc8
26.	bxa5	a6
27.	Rb1	Rd8
28.	Rb6	Rxd3
29.	Bf4	e5
30.	Be3	Kh7
31.	Rxa6	e4
32.	Ra7	Kg6
33.	a6	Bd4
34.	Bxd4	Rxd4
35.	Rb7	Ra4
36.	a7	Ra2

Black to play and draw

Blitz:4'+2, ?
Stockfish 10 64 POPCNT vs. John


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	b6
4.	g3	Bb7
5.	Bg2	d5
6.	O-O	Nbd7
7.	Ng5	h6
8.	Nh3	c5
9.	Nc3	cxd4
10.	Qxd4	Bc5
11.	Qd1	Ne5
12.	b4	Be7
13.	cxd5	Nxd5
14.	Nxd5	Bxd5
15.	Qa4+	Qd7
16.	Qxd7+	Nxd7
17.	Bd2	Bxg2
18.	Kxg2	Rc8
19.	Rac1	O-O
20.	Nf4	Ne5
21.	Nd3	Nxd3
22.	exd3	Bf6
23.	a4	Rfd8
24.	a5	bxa5
25.	Rxc8	Rxc8
26.	bxa5	a6
27.	Rb1	Rd8
28.	Rb6	Rxd3
29.	Bf4	e5
30.	Be3	Bd8
31.	Rb8	Kf8
32.	Ra8	Rd5
33.	Bb6	Ke7
34.	Ra7+	Ke6
35.	Ra8	Bxb6
36.	axb6	Rb5
37.	Rxa6	Kd6
38.	Ra7	Ke6
39.	b7	e4

Black to play and draw

Blitz:4'+2, ?
Stockfish 10 64 POPCNT vs. John


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	b6
4.	g3	Bb7
5.	Bg2	d5
6.	O-O	Nbd7
7.	Ng5	h6
8.	Nh3	c5
9.	Nc3	cxd4
10.	Qxd4	Bc5
11.	Qd1	Ne5
12.	b4	Be7
13.	cxd5	Nxd5
14.	Nxd5	Bxd5
15.	Qa4+	Qd7
16.	Qxd7+	Nxd7
17.	Bd2	Bxg2
18.	Kxg2	Rc8
19.	Rac1	O-O
20.	Nf4	Ne5
21.	Nd3	Nxd3
22.	exd3	Bf6
23.	a4	Rfd8
24.	a5	bxa5
25.	Rxc8	Rxc8
26.	bxa5	a6
27.	Rb1	Rd8
28.	Rb6	Rxd3
29.	Bf4	e5
30.	Be3	Bd8
31.	Rb8	Kf8
32.	Ra8	Rd5
33.	Bb6	Ke7
34.	Ra7+	Ke6
35.	Bxd8	Rxd8
36.	Rxa6+	Kd5
37.	Ra7	Ke6
38.	a6	e4
39.	Rb7	Rd2
40.	a7	Ra2
41.	Kf1	g5
42.	Ke1	f5
43.	Rb6+	Ke5
44.	Rb7	f4
45.	gxf4+	gxf4
46.	Rh7	Kd4
47.	Rxh6	Ra1+
48.	Ke2	Ra2+
49.	Kf1	f3
50.	Ke1	Ra1+
51.	Kd2	Rxa7

Click here for 35. Ra8.

Friday, October 18, 2019

What is the best move for Black?

Blitz:4'+2
Stockfish 10 64 POPCNT vs. John


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	Nf3	b6
4.	g3	Bb7
5.	Bg2	d5
6.	O-O	Nbd7
7.	Ng5	h6
8.	Nh3	c5
9.	Nc3	cxd4
10.	Qxd4	Bc5
11.	Qd1	Ne5
12.	b4	Be7
13.	cxd5	Nxd5
14.	Nxd5	Bxd5
15.	Qa4+	Qd7
16.	Qxd7+	Nxd7
17.	Bd2	Bxg2
18.	Kxg2	Rc8
19.	Rac1	O-O
20.	Nf4	Ne5
21.	Nd3	Nxd3
22.	exd3	Bf6
23.	a4	Rfd8
24.	a5	bxa5
25.	Rxc8	Rxc8
26.	bxa5	a6
27.	Rb1	Rd8
28.	Rb6	Rxd3
29.	Bf4	e5
30.	Be3	Bd8
31.	Rb8	Kf8
32.	Ra8	Ke8
33.	Rxa6	Kd7
34.	Ra8	Ra3
35.	Bc5	Ra4
36.	Ra7+	Ke6
37.	Ra6+	Kd5
38.	Bf8	Bxa5
39.	Bxg7	h5

Sunday, October 13, 2019

White to play for a slight advantage

Let's Play!, Chess.com
Analysis of Caissarius (1775) vs. soitgoes317 (1859)


8
7
6
5
4
3
2
1

(white to move)

1.	d4	Nf6
2.	c4	g6
3.	Nc3	Bg7
4.	e4	d6
5.	h3	O-O
6.	f4	c5
7.	d5	e6
8.	Nf3	exd5
9.	exd5	Re8+
10.	Be2	Bf5
11.	O-O	Ne4
12.	Nxe4	Bxe4
13.	Bd3	Na6
14.	Bxe4	Rxe4
15.	f5	Rxc4
16.	fxg6	hxg6
17.	Ng5	f5
18.	Ne6

What is the best move for Black?

Let's Play!, Chess.com
Analysis of Caissarius (1775) vs. soitgoes317 (1859)


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	c4	g6
3.	Nc3	Bg7
4.	e4	d6
5.	h3	O-O
6.	f4	c5
7.	d5	e6
8.	Nf3	exd5
9.	exd5	Re8+
10.	Be2	Bf5
11.	O-O	Ne4
12.	Nxe4	Bxe4
13.	Bd3	Na6
14.	Bxe4	Rxe4
15.	Qc2	Qe7
16.	a3	Re8
17.	Bd2	b5
18.	cxb5	Nc7
19.	Ng5	Re2
20.	Rae1	Nxd5
21.	Rxe2	Qxe2
22.	Re1	Qxb5

Click here for 22.. Qxe1+

Black to play

Let's Play!, Chess.com
Analysis of Caissarius (1775) vs. soitgoes317 (1859)


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(black to move)

1.	d4	Nf6
2.	c4	g6
3.	Nc3	Bg7
4.	e4	d6
5.	h3	O-O
6.	f4	c5
7.	d5	e6
8.	Nf3	exd5
9.	exd5	Re8+
10.	Be2	Bf5
11.	O-O	Ne4
12.	Nxe4	Bxe4
13.	Bd3	Na6
14.	Bxe4	Rxe4
15.	Qc2	Qe7
16.	a3	Re8
17.	Bd2	b5
18.	cxb5	Nc7
19.	Ng5	Re2
20.	Rae1	Nxd5
21.	Rxe2	Qxe2
22.	Re1	Qxe1+
23.	Bxe1	Rxe1+
24.	Kh2	Nxf4
25.	Qf2	Re2
26.	Qf3	Be5
27.	Qa8+	Kg7
28.	Nf3	Rxg2+
29.	Kh1	Bxb2
30.	Qe4	Bc1

CHECK!

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;