Monday, February 26, 2018

Black to play and win

ICC tourney 1394 (12 3), Internet Chess Club
Analysis of tangent (1911) vs. john2001plus (1734)
1
2
3
4
5
6
7
8
hgfedcba
+1
(black to move)
1.d4Nf6
2.g4d5
3.h3c5
4.dxc5e6
5.Be3Nbd7
6.Bg2Bxc5
7.Bxc5Nxc5
8.Qd4Qc7
9.Nc3O-O
10.g5e5
11.Qh4Qb6
12.O-O-Od4
13.gxf6dxc3
14.bxc3Qxf6
15.Qxf6gxf6
16.Bd5Be6
17.Nf3Bxd5
18.Rxd5Ne4
19.Rg1+Kh8
20.Rd7Nxc3
21.Kd2Ne4+
22.Ke3Nc5
23.Rd6Ne6
24.Ke4Rg8
25.Rxg8+Rxg8
26.Kf5Rg6
27.Rd7Ng7+
28.Ke4f5+
29.Kxe5Re6+
30.Kf4Rxe2
31.Ne5Ne6+
32.Kxf5Rxf2+
33.Kg4Rxc2
34.Nxf7+Kg7
35.Nd8+Kf6
36.Nxb7Rg2+
37.Kf3Rxa2
38.Ke3Ra3+
39.Kd2Rxh3
40.Rd6Ke5
41.Ra6Rh2+
42.Ke3Rh3+
43.Kf2h5
44.Ra5+Ke4
45.Ra4+Nd4
46.Nc5+Kd5
47.Nd7Rh2+
48.Kg3Rh1
49.Rxa7h4+
50.Kg2Rb1
51.Ra5+Ke4
52.Nf6+Kd3
53.Rh5Rb2+
54.Kh3Nf3
55.Kg4Ke3
56.Nd5+Ke4
57.Nf6+Ke3
58.Rf5Rb4+
59.Kh3Rb1
60.Nd5+Ke4
61.Ne7Rh1+
62.Kg2Rg1+
63.Kf2h3
64.Rh5Rg2+
65.Kf1Nd2+
66.Ke1h2
67.Rh4+Kf3
68.Nf5Nb3
69.Kd1Rg1+
70.Kc2h1=Q
 
Click here for 68... Ne4.
Click here for 68... Ne4.

Friday, February 23, 2018

White to play and mate in 6.

Quick Tournament, Salt Lake City
Analysis of Coffey, John (1940) vs. Balter, Ben (1443)
8
7
6
5
4
3
2
1
abcdefgh
+7
(white to move)
1.d4Nf6
2.c4e6
3.Nf3Bb4+
4.Bd2Qe7
5.e3Nc6
6.Bd3Bxd2+
7.Nbxd2O-O
8.O-Oe5
9.dxe5Nxe5
10.Nxe5Qxe5
11.Qc2d6
12.Nf3Qh5
13.Rac1Bg4
14.Nd4g6
15.Qb3Rab8
16.Nb5c6
17.Nxd6Rfd8
18.c5Be6
19.Bc4Ng4
20.h3Bxc4
21.Qxc4Ne5
22.Qf4Nd3
23.Qxf7+Kh8
24.Qf6+Kg8
25.Qe6+Kg7
26.Qe7+Kh6
27.Nf7+Kg7
28.Nxd8+Kh6
29.Nf7+Kg7
30.Nd8+Kh6
31.Qf8+Kg5
32.Ne6+Kh4
33.Rc4+Nf4
34.Rxf4+Qg4
35.Qh6#
 

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
abcdefgh
+4
(white to move)
1.Nf3Nc6
2.d4d5
3.c4e6
4.Nc3Nf6
5.Bg5Bb4
6.e3Bd7
7.Bd3h6
8.Bxf6gxf6
9.O-OQe7
10.cxd5Bxc3
11.dxc6Bxc6
12.bxc3Rg8
13.e4O-O-O
14.Rb1Rg7
15.Qc2Rdg8
16.g3f5
17.Ne5fxe4
18.Nxc6bxc6
19.Bxe4Qd6
20.Qa4f5
21.Bxc6Kd8
22.d5e5
23.Qh4+Rg5
24.Rb8+Ke7
25.Rxg8
 

Friday, February 16, 2018

White to play and draw.

Live Chess, Chess.com
Analysis of 55 SpeedyChess11 (1849) vs. Shootfilm (2000)
8
7
6
5
4
3
2
1
abcdefgh
-4
(white to move)
1.e4c5
2.Nf3Nc6
3.c3g6
4.d4cxd4
5.cxd4Bg7
6.Nc3d6
7.Be2Nf6
8.O-OO-O
9.Re1Bg4
10.h3Bd7
11.e5Ne8
12.Bc4dxe5
13.dxe5Qc8
14.Nd5Nc7
15.Nxc7Qxc7
16.e6Be8
17.exf7+Bxf7
18.Bxf7+Rxf7
19.Qb3Nd4
20.Nxd4Bxd4
21.Be3e5
22.Bxd4exd4
23.Rad1Qf4
24.f3Rd8
25.Re4Qf6
26.Qc4Kg7
27.Rexd4Rxd4
28.Rxd4Qb6
29.Kh2Qc7+
30.Qxc7Rxc7
31.Kg3Kf6
32.Kf4Ke6
33.Re4+Kd5
34.Re2Rf7+
35.Kg3Kd4
36.Kf2Kd3
37.Re3+Kc2
38.Re2+Kb1
39.b4b5
40.a3Rc7
41.Re3Kb2
42.g4a6
43.Re6Kxa3
44.Rxa6+Kxb4
45.h4Kb3
46.f4b4
47.Rb6Rf7
48.Kg3Kc3
49.h5gxh5
50.gxh5b3
51.Rc6+Kd2
52.Rb6Kc2
53.Rc6+Kb1
54.Kg4b2
55.f5Rg7+
56.Kf4Rb7
57.f6Ka2
58.Rc2Ka3
59.Rxb2Kxb2
60.Kf5Kc3
61.Ke6Kd4
62.f7Rb8
63.Ke7Ke5
64.f8=QRxf8
65.Kxf8Kf6
66.h6Kg6
67.Ke7Kxh6
68.Kf6Kh5
69.Kf5h6
70.Kf4Kh4
71.Kf3Kh3
72.Kf4h5
73.Kf3h4
74.Kf2Kh2
75.Kf1h3
76.Kf2Kh1
77.Kf1h2
78.Kf2
 

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
hgfedcba
-1
(black to move)
1.d4Nf6
2.c4e6
3.g3c5
4.d5b5
5.Bg2Bb7
6.e4bxc4
7.Nc3exd5
8.exd5d6
9.Nf3Nbd7
10.O-OBe7
11.Nd2Nb6
12.Nxc4Nxc4
13.Qa4+Qd7
14.Qxc4a5
15.Re1Ba6
16.Qa4Ra7
17.Bf4O-O
18.Qxd7Rxd7
19.Rxe7Rxe7
20.Bxd6Rd7
21.Bxf8Kxf8
22.Na4Rc7
23.d6Rc8
24.Rc1c4
25.Bf1Rd8
26.Bxc4Bxc4
27.Rxc4Rxd6
28.Rc5Ra6
29.Kf1Ne4
30.Rb5g6
31.Ke2f5
32.Rb7Re6
33.Kf1Rc6
34.f3Ng5
35.Kf2Rc2+
36.Ke3Rxh2
37.Rb5Rg2
38.Kf4Nh3+