Chess Level 4: 2019

Sunday, December 29, 2019

Black to play

Casual Game, https://itsyourturn.com
kesbor vs. John Coffey


1
2
3
4
5
6
7
8

(black to move)

1.	e4	e6
2.	d4	d5
3.	Nd2	c5
4.	exd5	exd5
5.	dxc5	Bxc5
6.	Nb3	Bb6
7.	Nf3	Nf6
8.	Bb5+	Nc6
9.	O-O	O-O
10.	Nbd4	Bg4
11.	Nxc6	bxc6
12.	Bxc6	Rc8
13.	Ba4	Ne4
14.	c3	Qd6
15.	Qd3	Nc5
16.	Qd1	Bc7
17.	Re1	Bxf3
18.	gxf3	Qxh2+
19.	Kf1	Qh1+
20.	Ke2	Qh4
21.	Bc2	Rfe8+
22.	Be3	Rxe3+
23.	fxe3	Qh2+
24.	Kf1	Qh3+
25.	Kf2	Bg3+

Thursday, December 19, 2019

White to play

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


8
7
6
5
4
3
2
1

-1

(white to move)

1.	Nf3	e6
2.	d4	f5
3.	g3	Nf6
4.	Bg2	Be7
5.	O-O	O-O
6.	c4	h6
7.	Nc3	a6
8.	Qc2	c6
9.	c5	Nd5
10.	e4	fxe4
11.	Nxe4	Nb4
12.	Qe2	d5
13.	cxd6 e.p.	Bxd6
14.	Ne5	Nd5
15.	Qg4	Kh8
16.	Bg5	hxg5
17.	Nxg5	Kg8
18.	Be4	Nf6
19.	Qh4	g6
20.	Bxg6	Qc7
21.	Bf7+	Kg7
22.	Nxe6+	Bxe6
23.	Qg5+	Kh7
24.	Qg6+	Kh8
25.	Qh6+	Nh7
26.	Ng6#

Sunday, December 8, 2019

Mate in 7

ICC tourney 1763 (12 3), Internet Chess Club
Analysis of john2001plus (1664) vs. doodlestoo (1356)


8
7
6
5
4
3
2
1

(white to move)

1.	Nf3	Nf6
2.	d4	g6
3.	c4	Bg7
4.	Nc3	O-O
5.	e4	c5
6.	Be2	cxd4
7.	Nxd4	Nc6
8.	Be3	a6
9.	O-O	Qc7
10.	Rc1	d6
11.	Nd5	Qd8
12.	f3	Nxd5
13.	cxd5	Nxd4
14.	Bxd4	Bxd4+
15.	Qxd4	b5
16.	Rc2	Rb8
17.	Rfc1	Qa5
18.	a3	f6
19.	Rc7	Bb7
20.	Rxe7	Rbc8
21.	Rxc8	Rxc8
22.	Qxf6	Rc1+
23.	Kf2	Qe1+
24.	Ke3	Qg1+
25.	Kd3	Rd1+
26.	Bxd1	Qxd1+
27.	Ke3	Qc1+
28.	Kf2	Qd2+
29.	Kg3	Qe1+
30.	Kh3	Bc8+
31.	Re6	Qc1
32.	Qd8+	Kg7
33.	Qe7+	Kh6
34.	Qf8+	Kh5
35.	g4+	Kg5
36.	Qf6+	Kh6
37.	Qh4+	Kg7
38.	Re7+	Kg8
39.	Qxh7+	Kf8
40.	Qf7#

Mate in 5

ICC tourney 1763 (12 3), Internet Chess Club
Analysis of john2001plus (1664) vs. doodlestoo (1356)


8
7
6
5
4
3
2
1

(white to move)

1.	Nf3	Nf6
2.	d4	g6
3.	c4	Bg7
4.	Nc3	O-O
5.	e4	c5
6.	Be2	cxd4
7.	Nxd4	Nc6
8.	Be3	a6
9.	O-O	Qc7
10.	Rc1	d6
11.	Nd5	Qd8
12.	f3	Nxd5
13.	cxd5	Nxd4
14.	Bxd4	Bxd4+
15.	Qxd4	b5
16.	Rc2	Rb8
17.	Rfc1	Qa5
18.	a3	f6
19.	Rc7	Bb7
20.	Rxe7	Rbc8
21.	Rxc8	Rxc8
22.	Qxf6	Rc1+
23.	Kf2	Qe1+
24.	Ke3	Qg1+
25.	Kd3	Rd1+
26.	Bxd1	Qxd1+
27.	Ke3	Qc1+
28.	Kf2	Qd2+
29.	Kg3	Qe1+
30.	Kh3	Bc8+
31.	Re6	Qc1
32.	Qd8+	Kg7
33.	Qe7+	Kh6
34.	Qh4+	Kg7
35.	Qe7+	Kh6
36.	Qf8+	Kg5
37.	f4+	Qxf4
38.	Qxf4+	Kxf4
39.	Kh4	g5+
40.	Kh5	g4
41.	Re8	Bb7
42.	Rb8	Bxd5
43.	exd5	Ke5
44.	Kxg4	Kxd5
45.	Rb6	a5
46.	Rxb5+	Kc4
47.	Rxa5	h5+
48.	Rxh5	Kb3
49.	Kf3	Ka4
50.	Ke3	Kb3
51.	Kd3	Ka4
52.	Rd5	Kb3
53.	Rb5+	Ka2
54.	Kc2	Ka1
55.	a4	Ka2
56.	Rb3	Ka1
57.	Ra3#

Click here for 53... Ka4.
Click here for 54... d5.

Sunday, November 24, 2019

What is the fastest way for Black to mate?

ICC tourney 1755 (12 3), Internet Chess Club
Analysis of lewisischess (1427) vs. john2001plus (1727)


1
2
3
4
5
6
7
8

(black to move)

1.	e4	e6
2.	d4	d5
3.	Nc3	Nf6
4.	e5	Nfd7
5.	Nf3	c5
6.	Be3	Nc6
7.	dxc5	Ndxe5
8.	Nxe5	Nxe5
9.	Bd4	Nc6
10.	Bb5	Bd7
11.	Bxc6	Bxc6
12.	O-O	Qa5
13.	Re1	Bxc5
14.	Bxg7	Rg8
15.	Rxe6+	fxe6
16.	Qh5+	Kd7
17.	Qf7+	Be7
18.	Bf6	Qd8
19.	Re1	Rxg2+
20.	Kf1	d4
21.	Qxe6+	Kc7
22.	Qxe7+	Qxe7
23.	Rxe7+	Kd6
24.	Ne4+	Bxe4
25.	Rxe4	Rxh2
26.	Rxd4+	Ke6
27.	Bg5	Rc8
28.	c3	Rc5
29.	Be3	Rd5
30.	Re4+	Kd7
31.	Ke2	a6
32.	Rg4	Rh1
33.	Rg7+	Kc6
34.	a4	h5
35.	b4	Rd7
36.	Rg6+	Rd6
37.	Rg8	h4
38.	a5	h3
39.	Rc8+	Kd7
40.	Rh8	Rg6
41.	Rh7+	Kc6
42.	Kd3	Rd6+
43.	Kc4	Rg6
44.	Bd4	Rg4
45.	Rh6+	Kd7
46.	Rh7+	Kc8
47.	Rh8+	Kd7
48.	Rh7+	Ke6
49.	Rxb7	Rh4
50.	Rb6+	Kd7
51.	Kd5	Rd1
52.	Rd6+	Ke8
53.	Re6+	Kf8
54.	Rf6+	Kg8
55.	Rg6+	Kh7
56.	Rxa6	h2
57.	Ra7+	Kh6
58.	Kc5	Rhxd4
59.	cxd4	h1=Q
60.	Rc7	Qe4
61.	Rc6+	Kg5
62.	Kb6	Qxd4+
63.	Kb5	Rb1
64.	Rc4	Qd3
65.	Kc5	Re1
66.	b5	Re5+
67.	Kb4	Qd2+
68.	Ka4	Qa2+
69.	Kb4	Qb2+
70.	Ka4	Qxb5+
71.	Ka3	Qxc4
72.	f4+	Kxf4
73.	Kb2	Rb5+
74.	Ka3	Qb3#

Monday, November 4, 2019

White to play

Corus Group C, Wijk aan Zee NED
Analysis of Magnus Carlsen (2484) vs. Sipke Ernst (2474)


8
7
6
5
4
3
2
1

-1

(white to move)

1.	e4	c6
2.	d4	d5
3.	Nc3	dxe4
4.	Nxe4	Bf5
5.	Ng3	Bg6
6.	h4	h6
7.	Nf3	Nd7
8.	h5	Bh7
9.	Bd3	Bxd3
10.	Qxd3	e6
11.	Bf4	Ngf6
12.	O-O-O	Be7
13.	Ne4	Qa5
14.	Kb1	O-O
15.	Nxf6+	Nxf6
16.	Ne5	Rad8
17.	Qe2	c5
18.	Ng6	fxg6
19.	Qxe6+	Kh8
20.	hxg6	Ng8
21.	Bxh6	gxh6
22.	Rxh6+	Nxh6
23.	Qxe7	Nf7
24.	gxf7	Qa6
25.	Qg5	Rxf7
26.	Rh1+	Rh7
27.	Qxd8+	Kg7
28.	Qe7+	Kg8
29.	Qxh7+	Kf8
30.	Qf5+	Kg8
31.	Qg5+	Kf8
32.	Rh8+	Kf7
33.	Rh7+

Sunday, October 13, 2019

Black to play for a perpetual

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


1
2
3
4
5
6
7
8

-1

(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	Ne3
25.	Qa4	Nf1+
26.	Kh1	Ng3+
27.	Kh2	Nf1+
28.	Kg1	Bd4+
29.	Kh1	Ng3+
30.	Kh2	Bf2

Sunday, September 22, 2019

White to play and win

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


8
7
6
5
4
3
2
1

(white to move)

1.	Nf3	h6
2.	e4	a6
3.	d4	d5
4.	exd5	Qxd5
5.	Nc3	Qd6
6.	Ne4	Qe6
7.	Ne5	f6
8.	Qh5+	Kd8
9.	Nc5	Qd5
10.	Nf7+	Ke8
11.	Nd6+	Kd8
12.	Qe8#

Monday, September 16, 2019

White to play

ICC tourney 1716 (12 3), Internet Chess Club
Analysis of john2001plus (1724) vs. weakfish (1239)


8
7
6
5
4
3
2
1

(white to move)

1.	Nf3	d5
2.	d4	c6
3.	c4	Nf6
4.	Nc3	dxc4
5.	a4	h6
6.	e4	Bg4
7.	Bxc4	a6
8.	Ne5	Be6
9.	Bxe6	fxe6
10.	Ng6	Rg8
11.	e5	Nd5
12.	Qg4	Qd7
13.	Ne4

White to play

ICC tourney 1716 (12 3), Internet Chess Club
Analysis of john2001plus (1724) vs. weakfish (1239)


8
7
6
5
4
3
2
1

(white to move)

1.	Nf3	d5
2.	d4	c6
3.	c4	Nf6
4.	Nc3	dxc4
5.	a4	h6
6.	e4	Bg4
7.	Bxc4	e6
8.	e5	Nd5
9.	O-O	Bb4
10.	Ne4	O-O
11.	h3	Bh5
12.	Bxh6	gxh6
13.	Bxd5	exd5
14.	Nf6+	Kg7
15.	Nxh5+	Kh8
16.	Qc1	Kh7
17.	Qc2+	f5
18.	exf6 e.p.+	Kh8
19.	Qg6	Qd7
20.	Rfe1	Bxe1
21.	Qxh6+	Kg8
22.	Rxe1	Rf7
23.	Re5	Rh7
24.	Rg5+	Kf7
25.	Qg6+	Ke6
26.	f7+	Ke7
27.	Qf6+

Sunday, September 15, 2019

Black to play and win

ICC tourney 1716 (12 3), Internet Chess Club
Analysis of john2001plus (1724) vs. weakfish (1239)


1
2
3
4
5
6
7
8

(black to move)

1.	Nf3	d5
2.	d4	c6
3.	c4	Nf6
4.	Nc3	dxc4
5.	a4	h6
6.	e4	Bg4
7.	Bxc4	e6
8.	e5	Nd5
9.	O-O	Bb4
10.	Ne4	O-O
11.	h3	Bh5
12.	Qb3	Bxf3
13.	Bxd5	cxd5
14.	gxf3	Nc6
15.	Bd2	Bxd2
16.	Nd6	Nxd4
17.	Qd3	Qg5+
18.	Kh1	Nf5
19.	Nxf5	exf5
20.	f4	Bxf4
21.	Rg1	Qh4
22.	Qxf5	Rac8

Checkmate in 6 moves

ICC tourney 1716 (12 3), Internet Chess Club
Analysis of john2001plus (1724) vs. weakfish (1239)


8
7
6
5
4
3
2
1

-5

(black to move)

1.	Nf3	d5
2.	d4	c6
3.	c4	Nf6
4.	Nc3	dxc4
5.	a4	h6
6.	e4	Bg4
7.	Bxc4	e6
8.	e5	Nd5
9.	O-O	Bb4
10.	Ne4	O-O
11.	h3	Bh5
12.	Qb3	Bxf3
13.	Bxd5	cxd5
14.	gxf3	Nc6
15.	Bd2	Bxd2
16.	Nd6	Nxd4
17.	Qd3	Qg5+
18.	Kh1	Nf5
19.	Nxf5	exf5
20.	f4	Bxf4
21.	Rg1	Qh4
22.	Qxf5	Bxe5
23.	Qxe5	Qxh3+
24.	Qh2	Qxh2+
25.	Kxh2	Rfd8
26.	Kg2	g5
27.	Rae1	Re8
28.	Rc1	Re7
29.	Rgd1	Rd8
30.	Rd4	Kg7
31.	Rcd1	Re5
32.	b3	Kf6
33.	Rh1	Kg6
34.	Rhd1	h5
35.	f4	Rf5
36.	fxg5	Rxg5+
37.	Kf3	Kf6
38.	Rd1d2	Ke6
39.	Rf4	Rf5
40.	Re2+	Kf6
41.	Rxf5+	Kxf5
42.	Re7	d4
43.	Rxf7+	Kg5
44.	Rg7+	Kf5
45.	Rf7+	Kg6
46.	Re7	d3
47.	Re1	d2
48.	Rd1	Kf5
49.	Ke3	h4
50.	Kf3	Rd3+
51.	Kg2	Kg4
52.	Kf2	h3
53.	Rg1+	Kf4
54.	Rd1	Rxb3
55.	Rxd2	Ra3
56.	Rd4+	Ke5
57.	Rd7	Rb3
58.	a5	Ra3
59.	Rh7	Kd6
60.	Rxb7	Rxa5
61.	Kg3	Ra3+
62.	Kh2	a5
63.	Ra7	Kc5
64.	Rc7+	Kb4
65.	Rb7+	Kc5
66.	Rc7+	Kb6
67.	Rc8	a4
68.	Rb8+	Kc5
69.	Rc8+	Kd4
70.	Rd8+	Ke4
71.	Re8+	Kf5
72.	Rf8+	Kg6
73.	Rg8+	Kf7
74.	Ra8	Kg6
75.	Rg8+	Kh7
76.	Rg4	Kh6
77.	Rg8	Kh5
78.	Rh8+	Kg4
79.	Rg8+	Kf5
80.	Rf8+	Ke4
81.	Re8+	Kd5
82.	Rd8+	Kc4
83.	Rc8+	Kb5
84.	Rb8+	Ka6
85.	Rh8	Rb3
86.	Ra8+	Kb5
87.	Rb8+	Kc4
88.	Rc8+	Kb4
89.	Rb8+	Ka3
90.	Ra8	Rb2+
91.	Kxh3	Kb3
92.	Rb8+	Kc2
93.	Ra8	Ra2
94.	Kg3	a3
95.	Rc8+	Kb1
96.	Ra8	Kb2
97.	Rb8+	Kc3
98.	Rc8+	Kb2
99.	Rb8+	Ka1
100.	Kf3	Rb2
101.	Ra8	a2
102.	Ke3	Rb3+
103.	Kd2	Kb2
104.	Ra7	a1=Q
105.	Rxa1	Kxa1
106.	Kc2	Rb8
107.	Kc3	Ka2
108.	Kc4	Ka3
109.	Kc5	Ka4
110.	Kc4	Rc8+
111.	Kd3	Kb4
112.	Ke3	Rd8
113.	Ke4	Kc4
114.	Ke5	Rd1
115.	Ke6	Kc5
116.	Ke7	Kc6
117.	Ke8	Kc7
118.	Ke7	Re1+
119.	Kf6	Kd6
120.	Kf5	Re8
121.	Kf4	Kd5
122.	Kf3	Kd4
123.	Kf2	Kd3
124.	Kf1	Kd2
125.	Kf2	Re3
126.	Kg2	Ke2
127.	Kg1	Kf3
128.	Kf1	Kg3
129.	Kg1	Re1#

Saturday, September 14, 2019

White to play

Casual G/30, Kroger Columbus Inidana
Analysis of Coffey, John (2016) vs. Chess Prince , on Master Level


8
7
6
5
4
3
2
1

(white to move)

1.	Nf3	Nc6
2.	d4	d5
3.	c4	Nf6
4.	cxd5	Qxd5
5.	Nc3	Qa5
6.	d5	Nb4
7.	e4	Nxe4
8.	Bb5+	Kd8
9.	Ne5	Nd6
10.	Be2	f6
11.	Nc4	Nxc4
12.	Bxc4	Bf5
13.	Bb3	Nd3+
14.	Kf1	Qb4
15.	a3	Qb6
16.	Be3	Nxb2
17.	Bxb6	Nxd1
18.	Bxc7+	Kxc7
19.	Rxd1	Rc8
20.	Nb5+	Kb8
21.	Nd4	Bg6
22.	Ke2	Rc3
23.	Rc1	Rd3
24.	Rhd1	Rxd1
25.	Kxd1	e6
26.	Nxe6	Bxa3
27.	Rc7	Bh5+
28.	f3	g5
29.	Ke2	Bd6
30.	Rd7	Bxh2
31.	Nc5	b6
32.	Na6+	Kc8
33.	Rxa7	Be8
34.	Ke3	b5
35.	Kf2	Be5
36.	Ke2	h5
37.	Nc5	Bd4
38.	Ra8+	Kc7
39.	Ne6+	Kb7
40.	Rd8	Be5
41.	Kd3	h4
42.	Ke3	Bc7
43.	Nxc7	Kxc7
44.	Ra8	Kb7
45.	Rd8	Kc7
46.	Ra8	Kb7
47.	Rd8	Kc7
48.	Ra8	h3
49.	gxh3	Kb7
50.	Rd8	Kc7
51.	Ra8	b4
52.	Ba4	Bxa4
53.	Rxh8	b3
54.	d6+	Kb7
55.	Rh7+	Kb8
56.	d7	Kc7
57.	d8=Q+	Kxd8
58.	Rb7

Sunday, August 25, 2019

Black to play

ICC tourney 1704 (12 3), Internet Chess Club
Analysis of SuperPuzzler (1665) vs. john2001plus (1747)


1
2
3
4
5
6
7
8

-2

(black to move)

1.	e4	e6
2.	d4	d5
3.	Nd2	c5
4.	Ngf3	cxd4
5.	Nxd4	Nc6
6.	Nxc6	bxc6
7.	Bd3	Nf6
8.	O-O	Be7
9.	c3	O-O
10.	Qc2	e5
11.	Re1	Qc7
12.	exd5	cxd5
13.	c4	d4
14.	Nf3	Bd6
15.	Bg5	e4
16.	Bxe4	Nxe4
17.	Rxe4	Bb7
18.	Rh4	h6
19.	Nxd4	Rfe8
20.	Nb5	Qc6
21.	f3	Bc5+
22.	Kh1	Qxf3
23.	Bf4	Re2
24.	Qxe2	Qxe2
25.	Rg4	Qxg4
26.	Bg3	Qh3
27.	Rg1	Bxg1
28.	Kxg1	Qxg2#

Friday, July 12, 2019

White to play

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


8
7
6
5
4
3
2
1

(white to move)

1.	Nf3	Nf6
2.	d4	d5
3.	c4	dxc4
4.	e3	c5
5.	Bxc4	cxd4
6.	O-O	e6
7.	exd4	Be7
8.	Nc3	O-O
9.	Bf4	Nc6
10.	Re1	h6
11.	Qd2	Nh5
12.	Be3	a6
13.	Bb3	b5
14.	Bxh6	gxh6
15.	Qxh6	Ng7
16.	Rad1	Nf5
17.	Qh3	Bf6
18.	d5	exd5
19.	Rxd5	Qc7
20.	Rxf5	Bxf5
21.	Qxf5	Rfe8
22.	Rxe8+	Rxe8
23.	Qxf6	Re7
24.	Nd5	Qd8
25.	Qg5+	Kf8
26.	Qh6+	Ke8
27.	Nf6#

Wednesday, July 10, 2019

Black to play and win

March 2019 Open Main #1 Tournament, https://itsyourturn.com
Analysis of jerryw1936 vs. John Coffey


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(black to move)

1.	d4	Nf6
2.	c4	e6
3.	c5	b6
4.	b4	a5
5.	Qa4	Bb7
6.	Bf4	axb4
7.	Qxb4	Nd5
8.	Qd2	bxc5
9.	e3	Nxf4
10.	exf4	cxd4
11.	Qxd4	Qf6
12.	Qxf6	gxf6
13.	f5	Bb4+
14.	Kd1	Rg8
15.	f3	d5
16.	Ne2	Nd7
17.	Nbc3	Ke7
18.	Nb5	c6
19.	Nbd4	c5
20.	Nb3	Bc6
21.	Ng3	Ba4
22.	Kc2	c4
23.	Be2	cxb3+
24.	axb3	Bc6
25.	Bd3	e5
26.	Ne2	Rxa1
27.	Rxa1	Rxg2
28.	h4	Nc5
29.	Ra7+	Kf8
30.	Rc7	Nxd3
31.	Rxc6	Nf4
32.	Rb6	Rxe2+
33.	Kd1	Rd2+
34.	Kc1	Ne2+
35.	Kb1	Bc3
36.	Rb8+	Kg7
37.	Rc8	Rb2+
38.	Ka1	Rxb3+
39.	Rxc3	Nxc3
40.	f4	Rb1#

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;