Chess Analysis Blog: February 2018

Wednesday, February 28, 2018

What is the best continuation for Black?

ICC tourney 1394 (12 3), Internet Chess Club
Analysis of tangent (1911) vs. john2001plus (1734)


1
2
3
4
5
6
7
8

h

g

f

e

d

c

b

a

+2

(black to move)

1.	d4	Nf6
2.	g4	d5
3.	h3	c5
4.	dxc5	e6
5.	Be3	Nbd7
6.	Bg2	Bxc5
7.	Bxc5	Nxc5
8.	Qd4	Qc7
9.	Nc3	O-O
10.	g5	e5
11.	Qh4	Qb6
12.	O-O-O	d4
13.	gxf6	dxc3
14.	bxc3	Qxf6
15.	Qxf6	gxf6
16.	Bd5	Be6
17.	Nf3	Bxd5
18.	Rxd5	Ne4
19.	Rg1+	Kh8
20.	Rd7	Nxc3
21.	Kd2	Ne4+
22.	Ke3	Nc5
23.	Rd6	Ne6
24.	Ke4	Rg8
25.	Rxg8+	Rxg8
26.	Kf5	Rg6
27.	Rd7	Ng7+
28.	Ke4	f5+
29.	Kxe5	Re6+
30.	Kf4	Rxe2
31.	Ne5	Ne6+
32.	Kxf5	Rxf2+
33.	Kg4	Rxc2
34.	Nxf7+	Kg7
35.	Nd8+	Kf6
36.	Nxb7	Rg2+
37.	Kf3	Rxa2
38.	Ke3	Ra3+
39.	Kd2	Rxh3
40.	Rd6	Ke5
41.	Ra6	Rh2+
42.	Ke3	Rh3+
43.	Kf2	h5
44.	Ra5+	Ke4
45.	Ra4+	Nd4
46.	Nc5+	Kd5
47.	Nd7	Nc6
48.	Kg2	Rb3
49.	Nf6+	Kd6
50.	Nxh5	a5

Friday, February 23, 2018

What is the best continuation for White?

Live Chess, Chess.com
Analysis of john2001plus (1841) vs. Aravindhnath (1443)


8
7
6
5
4
3
2
1

a

b

c

d

e

f

g

h

0

(white to move)

1.	Nf3	Nc6
2.	d4	d5
3.	c4	e6
4.	Nc3	Nf6
5.	Bg5	Bb4
6.	e3	Bd7
7.	Bd3	h6
8.	Bxf6	gxf6
9.	cxd5	exd5
10.	Nh4	Ne7
11.	Qf3	Rg8
12.	a3	Bg4
13.	Qxf6

What is the strongest continuation for White?

Live Chess, Chess.com
Analysis of john2001plus (1841) vs. Aravindhnath (1443)


8
7
6
5
4
3
2
1

a

b

c

d

e

f

g

h

+4

(white to move)

1.	Nf3	Nc6
2.	d4	d5
3.	c4	e6
4.	Nc3	Nf6
5.	Bg5	Bb4
6.	e3	Bd7
7.	Bd3	h6
8.	Bxf6	gxf6
9.	O-O	Qe7
10.	cxd5	Bxc3
11.	dxc6	Bxc6
12.	bxc3	Rg8
13.	e4	O-O-O
14.	Rb1	Rg7
15.	Qc2	Rdg8
16.	g3	f5
17.	Ne5	fxe4
18.	Nxc6	bxc6
19.	Bxe4	Qd6
20.	Qa4	f5
21.	Bxc6	Kd8
22.	Rb8+	Ke7
23.	Rxg8	Rxg8
24.	Re1	Rg6
25.	c4	Rg4
26.	Bd5	Rg6
27.	Bf3	Qxd4
28.	Bh5	Rg8
29.	Rd1	Qc5
30.	Qd7+	Kf6
31.	Qf7+	Ke5
32.	Qxg8	Qxc4
33.	Qg7+	Ke4
34.	f3+	Ke3
35.	Qe5+	Qe4
36.	Qc3+	Qd3
37.	Re1#

Thursday, February 15, 2018

Black to play.

ICC tourney 1386 (12 3), Internet Chess Club
Analysis of tangent (1921) vs. john2001plus (1716)


1
2
3
4
5
6
7
8

h

g

f

e

d

c

b

a

0

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	g3	c5
4.	d5	b5
5.	Bg2	Bb7
6.	e4	bxc4
7.	Nc3	exd5
8.	exd5	d6
9.	Nf3	Nbd7
10.	O-O	Be7
11.	Nd2	Nb6
12.	Nxc4	Nxc4
13.	Qa4+	Qd7
14.	Qxc4	a5
15.	Re1	O-O
16.	Qb5	Qc7

Black to play.

ICC tourney 1386 (12 3), Internet Chess Club
Analysis of tangent (1921) vs. john2001plus (1716)


1
2
3
4
5
6
7
8

h

g

f

e

d

c

b

a

0

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	g3	c5
4.	d5	b5
5.	Bg2	Bb7
6.	e4	bxc4
7.	Nc3	exd5
8.	exd5	d6
9.	Nf3	Nbd7
10.	O-O	Be7
11.	Nd2	Nb6
12.	Nxc4	Nxc4
13.	Qa4+	Qd7
14.	Qxc4	a5
15.	Re1	Ba6
16.	Qa4	Ra7
17.	Bf4	Qxa4
18.	Nxa4	Kf8

Black to play.

ICC tourney 1386 (12 3), Internet Chess Club
Analysis of tangent (1921) vs. john2001plus (1716)


1
2
3
4
5
6
7
8

h

g

f

e

d

c

b

a

+1

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	g3	c5
4.	d5	b5
5.	Bg2	Bb7
6.	e4	bxc4
7.	Nc3	exd5
8.	exd5	d6
9.	Nf3	Nbd7
10.	O-O	Be7
11.	Nd2	Nb6
12.	Nxc4	Nxc4
13.	Qa4+	Qd7
14.	Qxc4	a5
15.	Re1	Ba6
16.	Qa4	Ra7
17.	Bf4	O-O
18.	Qxd7	Rxd7
19.	Rxe7	Rxe7
20.	Bxd6	Rb7
21.	Bxf8	Kxf8
22.	Na4	Nd7
23.	b3	Rb4
24.	Bh3	Bc8
25.	Nb2	Rd4
26.	Rc1	Rxd5
27.	Nc4	a4
28.	bxa4	Rd4
29.	a5	Ba6

Black to play.

ICC tourney 1386 (12 3), Internet Chess Club
Analysis of tangent (1921) vs. john2001plus (1716)


1
2
3
4
5
6
7
8

h

g

f

e

d

c

b

a

-1

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	g3	c5
4.	d5	b5
5.	Bg2	Bb7
6.	e4	bxc4
7.	Nc3	exd5
8.	exd5	d6
9.	Nf3	Nbd7
10.	O-O	Be7
11.	Nd2	Nb6
12.	Nxc4	Nxc4
13.	Qa4+	Qd7
14.	Qxc4	a5
15.	Re1	Ba6
16.	Qa4	Ra7
17.	Bf4	O-O
18.	Qxd7	Rxd7
19.	Rxe7	Rxe7
20.	Bxd6	Rd7
21.	Bxf8	Kxf8
22.	Na4	Rc7
23.	d6	Rc8
24.	Rc1	c4
25.	Bf1	Rd8
26.	Bxc4	Bxc4
27.	Rxc4	Rxd6
28.	Rc5	Ra6
29.	Kf1	Ne4
30.	Rb5	g6
31.	Ke2	f5
32.	Rb7	h5
33.	f3	Nd6
34.	Rc7	Nb5
35.	Rc5	Nd4+
36.	Ke3	Ne6
37.	Rb5	Nc7
38.	Re5	Kf7
39.	Kd3	Kf6
40.	f4	Ne6
41.	Kc4	g5
42.	Kb5	Nc7+
43.	Kc4	gxf4
44.	gxf4	Ne6
45.	Nc5	Nxc5
46.	Kxc5	Ra8
47.	Re2	Rb8

What is the best continuation for Black?

ICC tourney 1386 (12 3), Internet Chess Club
Analysis of tangent (1921) vs. john2001plus (1716)


1
2
3
4
5
6
7
8

h

g

f

e

d

c

b

a

-2

(black to move)

1.	d4	Nf6
2.	c4	e6
3.	g3	c5
4.	d5	b5
5.	Bg2	Bb7
6.	e4	bxc4
7.	Nc3	exd5
8.	exd5	d6
9.	Nf3	Nbd7
10.	O-O	Be7
11.	Nd2	Nb6
12.	Nxc4	Nxc4
13.	Qa4+	Qd7
14.	Qxc4	a5
15.	Re1	Ba6
16.	Qa4	Ra7
17.	Bf4	O-O
18.	Qxd7	Rxd7
19.	Rxe7	Rxe7
20.	Bxd6	Rd7
21.	Bxf8	Kxf8
22.	Na4	Rc7
23.	d6	Rc8
24.	Rc1	c4
25.	Bf1	Rd8
26.	Bxc4	Bxc4
27.	Rxc4	Rxd6
28.	Rc5	Ra6
29.	Kf1	Ne4
30.	Rb5	g6
31.	Ke2	f5
32.	Rb7	h5
33.	f3	Nd6
34.	Rc7	Nb5
35.	Rc5	Nd4+
36.	Ke3	Ne6
37.	Rb5	Nc7
38.	Re5	Kf7
39.	Kd3	Kf6
40.	f4	Ne6
41.	Kc4	g5
42.	Kb5	Nc7+
43.	Kc4	gxf4
44.	gxf4	Ne6
45.	Nc5	Rc6
46.	Kb5	Nd4+
47.	Kxa5	Rc8
48.	Rd5	Ne2
49.	Nd3	Ra8+
50.	Kb6	Ra4
51.	b4	Rxa2

Thursday, February 8, 2018

What is the strongest line for Black?

ICC tourney 1370 (12 3), Internet Chess Club
Analysis of ickyquarter (1397) vs. john2001plus (1648)


1
2
3
4
5
6
7
8

h

g

f

e

d

c

b

a

+4

(black to move)

1.	e4	e6
2.	d4	d5
3.	Nd2	c5
4.	exd5	exd5
5.	Ngf3	Nf6
6.	c3	Nc6
7.	Bd3	cxd4
8.	cxd4	Bd6
9.	O-O	O-O
10.	Nb3	Re8
11.	Bg5	h6
12.	Bh4	Be6
13.	a3	Rc8
14.	Nbd2	g5
15.	Bg3	Bxg3
16.	fxg3	Qb6
17.	Nb3	Ne4
18.	Bc2	a5
19.	Rb1	a4
20.	Nbd2	Nxd4
21.	Bxe4	Nxf3+
22.	Kh1	Nxd2
23.	Qxd2	dxe4
24.	Qe2	Bc4
25.	Qf2	e3
26.	Qf6	Rc6
27.	Qf3	e2
28.	Rg1	Rf6
29.	Qc3	Rf1
30.	Rgxf1	exf1=Q+
31.	Rxf1	Bxf1

Black to play.

Casual G/10, Columbus Chess Club
Analysis of James Bemke vs. John Coffey


1
2
3
4
5
6
7
8

h

g

f

e

d

c

b

a

+1

(black to move)

1.	e4	e6
2.	d4	d5
3.	Nc3	Nf6
4.	Bg5	Be7
5.	e5	Nfd7
6.	h4	h6
7.	Bxe7	Qxe7
8.	Qg4	O-O
9.	f4	c5
10.	O-O-O	cxd4
11.	Nb5	f6
12.	Bd3	fxe5
13.	fxe5	Nxe5
14.	Qxd4	Nbc6
15.	Qe3	a6
16.	Nd4	Ng4
17.	Nxc6	bxc6
18.	Qg3	Nf2
19.	Qg6	Nxd3+
20.	cxd3	Qc5+
21.	Kb1	Rf2
22.	d4	Rxb2+
23.	Ka1	Qa3

Black to play.

Casual G/10, Columbus Chess Club
Analysis of James Bemke vs. John Coffey


1
2
3
4
5
6
7
8

h

g

f

e

d

c

b

a

+1

(black to move)

1.	e4	e6
2.	d4	d5
3.	Nc3	Nf6
4.	Bg5	Be7
5.	e5	Nfd7
6.	h4	h6
7.	Bxe7	Qxe7
8.	Qg4	O-O
9.	f4	c5
10.	O-O-O	cxd4
11.	Nb5	f6
12.	Bd3	fxe5
13.	fxe5	Nxe5
14.	Qxd4	Nbc6
15.	Qe3	a6
16.	Nd4	Ng4
17.	Nxc6	bxc6
18.	Qg3	Nf2
19.	Qg6	Qf6
20.	Qh7+	Kf7
21.	Nh3	Nxh1
22.	Rf1	Qxf1+
23.	Bxf1	e5
24.	h5	Ng3
25.	Bd3	e4
26.	Qg6+	Kg8
27.	Qxg3	exd3
28.	cxd3	Bxh3
29.	gxh3	Rf1+
30.	Kd2	Raf8

White to play and win.

Casual Game, https://itsyourturn.com
Analysis of John Coffey vs. JUMPER


8
7
6
5
4
3
2
1

a

b

c

d

e

f

g

h

0

(white to move)

1.	Nf3	d5
2.	d4	Nf6
3.	c4	c6
4.	e3	e6
5.	Nc3	Be7
6.	Bd3	O-O
7.	O-O	Nbd7
8.	Qe2	dxc4
9.	Bxc4	b6
10.	e4	Bb7
11.	e5	Nd5
12.	Qe4	Nxc3
13.	bxc3	Qc7
14.	Ng5	g6
15.	Qh4	Bxg5
16.	Bxg5	c5
17.	Qh6	Qc6
18.	d5	exd5
19.	Bb5	Qe6
20.	Bxd7	Qxe5
21.	Rae1	Qxc3
22.	Re7	Bc8
23.	Bc6	Rb8
24.	Bxd5	Bf5
25.	Rfe1	Qg7
26.	Qh4	h5
27.	Bf6	Qh7
28.	Bb2

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;