Chess Level 20: May 2017

Friday, May 26, 2017

Black to play for a winning advantage.

Live Chess, Chess.com
Analysis of Gustafsson21 (1807) vs. john2001plus (1793)


1
2
3
4
5
6
7
8

h

g

f

e

d

c

b

a

+1

(black to move)

1.	d4	Nf6
2.	Bg5	c5
3.	Bxf6	gxf6
4.	d5	Qb6
5.	Qc1	d6
6.	c4	Qb4+
7.	Nc3	Qxc4
8.	Nf3	Qb4
9.	a3	Qa5
10.	e4	Bg4
11.	Be2	Nd7
12.	O-O	h5
13.	b4	Qd8
14.	Nh4	Bh6
15.	f4	cxb4
16.	axb4	Rc8
17.	Qb2	Rxc3
18.	Bxg4	Qb6+
19.	Kh1	Rc4
20.	Bxd7+	Kxd7
21.	e5	dxe5
22.	d6	Rxf4
23.	Rxf4	Bxf4
24.	dxe7	Kxe7
25.	Nf5+	Ke6
26.	Ng7+	Kd7
27.	Qc2	Qc6
28.	Qa2	Kc7
29.	Nxh5	Bg5
30.	Ng7	Rd8
31.	Qxa7	Qc2
32.	h3	Rd1+
33.	Rxd1	Qxd1+
34.	Qg1	Qb3
35.	h4	Qc2
36.	Nf5	Qxf5
37.	Qc5+	Kd7
38.	Qb5+	Ke7
39.	Qxb7+	Qd7
40.	Qxd7+	Kxd7
41.	hxg5	fxg5

Click here for 21... Bxf4

Saturday, May 20, 2017

White to play and win.

Live Chess, Chess.com
Analysis of john2001plus vs. Gustafsson21


8
7
6
5
4
3
2
1

a

b

c

d

e

f

g

h

+1

(white to move)

1.	Nf3	d5
2.	d4	Nf6
3.	c4	c6
4.	Nc3	dxc4
5.	Ne5	Bf5
6.	f3	e6
7.	e4	Bg6
8.	Bxc4	Bb4
9.	O-O	Nbd7
10.	Qb3	Bxc3
11.	bxc3	O-O
12.	Bg5	Rb8
13.	Nxd7	Qxd7
14.	Bxf6	gxf6
15.	a4	f5
16.	d5	e5
17.	Rad1	c5
18.	d6	a6
19.	a5	f4
20.	Qb6	Rfd8
21.	Rd5	Kg7
22.	Rfd1	f6
23.	Rxc5	Rbc8
24.	Rc7	Rxc7
25.	Qxc7	Bf7
26.	Kf2	Bxc4
27.	Qxc4	Rc8
28.	Qb4	Rc6
29.	c4	Rc8
30.	c5	Qc6
31.	d7	Rd8
32.	Rd6	Qc7
33.	g3	Rxd7
34.	Qb6	Kg8
35.	Rxf6	Qxb6
36.	axb6	Rd2+
37.	Ke1	Rc2
38.	gxf4	Rxc5
39.	Rd6	exf4
40.	Rd7	Rb5
41.	Rxb7	a5
42.	Kd2	Rb3
43.	e5	a4
44.	e6	Kf8
45.	Kc2	Rb5
46.	Kd3	a3
47.	Ke4	a2
48.	Rf7+	Ke8
49.	Ra7	Rxb6
50.	Ke5	Rb7
51.	Rxa2	Ke7
52.	Ra5	Rc7
53.	Rd5	Rb7
54.	Rd7+	Rxd7
55.	exd7	Kxd7
56.	Kxf4

Click here for 36... cxb6.
Click here for 37... Rxh2.
Click here for 44... a3.
Click here for 45... Rf3.
Click here for 52... Rb2.

Friday, May 19, 2017

White to play and win.

Live Chess, Chess.com
Analysis of LucVanDuc (1824) vs. john2001plus (1701)


8
7
6
5
4
3
2
1

a

b

c

d

e

f

g

h

0

(white to move)

1.	d4	Nf6
2.	f4	e6
3.	e3	c5
4.	c3	d5
5.	Nf3	Nc6
6.	Bd3	Ne4
7.	Bxe4	dxe4
8.	Ne5	cxd4
9.	exd4	Bd6
10.	O-O	O-O
11.	Qe2	f5
12.	Nd2	Nxe5
13.	fxe5	Be7
14.	Nc4	b5
15.	Ne3	a6
16.	g3	Bb7
17.	Bd2	g5
18.	Ng2	Qd5
19.	Be3	Rac8
20.	a3	Qb3
21.	Rad1	Bd5
22.	Rf2	Kg7
23.	Qh5	h6
24.	Re1	a5
25.	h4	Rh8
26.	g4	f4
27.	Nxf4	Rh7
28.	Nxd5	Qxd5
29.	Rf7+	Kh8
30.	Ref1	Rg8
31.	Rxh7+	Kxh7
32.	Rf7+	Rg7
33.	hxg5	Bxg5
34.	Bxg5	Kg8
35.	Rxg7+	Kxg7
36.	Bxh6+	Kh7
37.	Bg5+	Kg8
38.	Qe8+	Kg7
39.	Bf6+	Kh7
40.	Qh8+

Click here for 27... gxf4.

Black to play and draw.

Live Chess, Chess.com
Analysis of LucVanDuc (1824) vs. john2001plus (1701)


1
2
3
4
5
6
7
8

h

g

f

e

d

c

b

a

0

(black to move)

1.	d4	Nf6
2.	f4	e6
3.	e3	c5
4.	c3	d5
5.	Nf3	Nc6
6.	Bd3	Ne4
7.	Bxe4	dxe4
8.	Ne5	cxd4
9.	exd4	Bd6
10.	O-O	O-O
11.	Qe2	f5
12.	Nd2	Nxe5
13.	fxe5	Be7
14.	Nc4	b5
15.	Ne3	a6
16.	g3	Bb7
17.	Bd2	g5
18.	Ng2	Qd5
19.	Be3	Rac8
20.	a3	Qb3
21.	Rad1	Bd5
22.	Rf2	Kg7
23.	Qh5	h6
24.	Re1	a5
25.	h4	Rh8
26.	g4	f4
27.	Bxf4	Rcf8
28.	Be3	Rxf2
29.	Bxf2	Qxb2
30.	Rf1	Qxc3
31.	Be3	Rf8
32.	Rxf8	Bxf8
33.	hxg5	hxg5
34.	Qxg5+	Kf7
35.	Qf6+	Ke8
36.	Qg6+	Kd8
37.	Bg5+	Be7
38.	Ne3	Qxd4
39.	Bxe7+	Kxe7
40.	Qg7+	Kd8
41.	Qh6	Kc7
42.	Kg2	Qd2+
43.	Kg3	Qe1+
44.	Kh2	Qf2+
45.	Kh3	Bc6
46.	Qg5	Kc8
47.	Ng2	Qf3+
48.	Kh2	e3
49.	Nxe3	Be4
50.	Qg8+	Kc7
51.	Qxe6	Qf2+
52.	Kh3	Qxe3+
53.	Kh4	Qxa3
54.	Qf7+	Kd8
55.	Qg8+	Ke7
56.	Qg7+	Ke8
57.	Qg8+	Qf8
58.	Qa2	Qh8+
59.	Kg3	Qxe5+
60.	Kh3	a4
61.	Qa3	Qd4
62.	Qa2	Qd3+
63.	Kh4	Qd8+
64.	Kg3	Qd6+
65.	Kh3	a3
66.	Qg8+	Kd7
67.	Qg7+	Kc6
68.	Qa7	Qd3+
69.	Kh4	Bd5
70.	Qa8+	Kc5
71.	Qa5	a2
72.	Qa7+	Kb4
73.	Qe7+	Kb3
74.	Qe5	Qe4
75.	Qa1	Qb1
76.	Qe5	Qh1+
77.	Kg5	a1=Q
78.	Qe3+	Qc3
79.	Qe2	Qcc1+
80.	Kf5	Qh7+
81.	Ke5	Qe7+
82.	Kd4	Qc3+
83.	Kxd5	Qcc5#

CHECK!

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