Chess Level 03: March 2018

Saturday, March 31, 2018

Black to play for a strong advantage

ICC tourney 1414 (12 3), Internet Chess Club
saikolli (849) vs. john2001plus (1718)


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	cxd4
7.	Bxd4	Nc6
8.	Be3	Ndxe5
9.	Nxe5	Nxe5
10.	Bd4	Nc6
11.	Bb5	Bd7
12.	Be3	Bb4
13.	Qd3	O-O
14.	O-O-O	Qf6
15.	a3	Bxc3
16.	Qxc3	d4
17.	Qe1	e5
18.	Bd2	Bf5

Black to play and win

ICC tourney 1361 (12 3), Internet Chess Club
Analysis of IAlwaysWin (1619) vs. john2001plus (1635)


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	Be7
6.	O-O	O-O
7.	Nc3	d5
8.	cxd5	Nxd5
9.	Nxd5	Bxd5
10.	Qc2	Nc6
11.	Rd1	Bxf3
12.	Bxf3	Nxd4
13.	Rxd4	Qxd4
14.	Be3	Qb4
15.	Bxa8	Rxa8
16.	Qxc7	Qxb2
17.	Rd1	Qxe2
18.	Rd2	Qe1+
19.	Kg2	Bc5
20.	Rd7	Rf8
21.	Bxc5	bxc5
22.	Qxa7	Qe4+
23.	Kg1	c4
24.	Rc7	h5
25.	Qc5	Rd8
26.	Rc8	Rxc8
27.	Qxc8+	Kh7
28.	a4	Qe1+
29.	Kg2	c3
30.	a5	Qe4+
31.	f3	Qe2+
32.	Kh3	g5
33.	Qc4	Qxc4
34.	Kg2	Qe2+
35.	Kg1	c2

Tuesday, March 27, 2018

White to play and win

Politiken Cup 23rd, Copenhagen
De Firmian, Nick E (2552) vs. Brynell, Stellan (2486)


8
7
6
5
4
3
2
1

(white to move)

1.	e4	e6
2.	d4	d5
3.	Nc3	Nf6
4.	Bg5	Bb4
5.	e5	h6
6.	Bd2	Bxc3
7.	bxc3	Ne4
8.	Qg4	g6
9.	Bd3	Nxd2
10.	Kxd2	c5
11.	Nf3	Nc6
12.	Qf4	cxd4
13.	cxd4	Qa5+
14.	c3	b6
15.	Qf6	Rg8
16.	Qh4	Rh8
17.	Ng5	Qa3
18.	Rhb1	Kf8
19.	Nf3	Qe7
20.	Qf6	Rg8
21.	h4	Bd7
22.	g4	Rc8
23.	h5	gxh5
24.	gxh5	Qxf6
25.	exf6	e5
26.	Nxe5	Nxe5
27.	dxe5	Rg5
28.	Rg1	Rxh5
29.	Rh1	Rxe5
30.	Rxh6	Rg5
31.	Rh8+	Rg8
32.	Rxg8+	Kxg8
33.	Rg1+	Kh8
34.	Rh1+	Kg8
35.	Bh7+	Kh8
36.	Bf5+	Kg8
37.	Rg1+	Kh8
38.	Bxd7

Wednesday, March 21, 2018

Black to play and win

1st American Chess Congress, New York, NY USA
Analysis of Louis Paulsen vs. Paul Morphy


1
2
3
4
5
6
7
8

(black to move)

1.	e4	e5
2.	Nf3	Nc6
3.	Nc3	Nf6
4.	Bb5	Bc5
5.	O-O	O-O
6.	Nxe5	Re8
7.	Nxc6	dxc6
8.	Bc4	b5
9.	Be2	Nxe4
10.	Nxe4	Rxe4
11.	Bf3	Re6
12.	c3	Qd3
13.	b4	Bb6
14.	a4	bxa4
15.	Qxa4	Bd7
16.	Ra2	Rae8
17.	Qa6	Qxf3
18.	gxf3	Rg6+
19.	Kh1	Bh3
20.	Rd1	Bg2+
21.	Kg1	Bxf3+
22.	Kf1	Bg2+
23.	Kg1	Bh3+
24.	Kh1	Bxf2
25.	Qf1	Bxf1
26.	Rxf1	Re2
27.	Ra1	Rh6
28.	d4	Be3
29.	Rf2	Rxf2
30.	Bxe3	Rhxh2+
31.	Kg1	Rfg2+
32.	Kf1	Rc2
33.	Kg1	Rhg2+
34.	Kf1	h5
35.	Rc1	Rxc1+
36.	Bxc1	Rc2

Click here for 33. Rc1.

Tuesday, March 20, 2018

Black to play and draw.

ICC 30 0 u, Internet Chess Club
Analysis of john2001plus (1836) vs. fiddler (1798), 1800


1
2
3
4
5
6
7
8

-1

(black to move)

1.	Nf3	d5
2.	d4	Nf6
3.	c4	e6
4.	Nc3	Be7
5.	Bf4	O-O
6.	e3	Nbd7
7.	cxd5	Nxd5
8.	Nxd5	exd5
9.	a3	c6
10.	Bd3	Nf6
11.	Qc2	Qa5+
12.	Nd2	Qd8
13.	O-O	Bd6
14.	Bxd6	Qxd6
15.	Nf3	h6
16.	b4	Be6
17.	Rfc1	Rfc8
18.	Qc5	Qxc5
19.	Rxc5	Nd7
20.	Rc2	f6
21.	Rac1	a6
22.	a4	Nb6
23.	b5	Nc4
24.	bxc6	Rxc6
25.	Bxc4	dxc4
26.	e4	Bf7
27.	d5	Rc5
28.	Rxc4	Rxc4
29.	Rxc4	b5
30.	Rb4	bxa4
31.	Rxa4	a5
32.	Nd4	Be8
33.	Ra3	a4
34.	Ne6	Rb8
35.	f3	Rb3
36.	Ra1	a3
37.	Nc5	Rc3
38.	Na6	Bb5
39.	Nb4	Bc4
40.	Na2	Bxa2
41.	Rxa2	Rb3
42.	h3	Kf7
43.	Kh2	g5
44.	Kg3	h5
45.	h4	Ke7
46.	Rd2	Rb2
47.	Rd3	a2
48.	Ra3	Kd6
49.	hxg5	fxg5
50.	Ra6+	Ke5
51.	d6	Rd2
52.	d7	Rxd7
53.	Rxa2	Rg7
54.	Re2	Rf7
55.	Rd2	Rg7
56.	Rd5+	Kf6
57.	Rf5+	Ke6
58.	Kf2	h4
59.	f4	gxf4
60.	Rxf4	Rh7
61.	Rf3	Ke5
62.	Ke3	Rg7
63.	Rf5+	Ke6
64.	Rh5	Rxg2
65.	Rxh4

Sunday, March 18, 2018

What is the best line for White?

ICC 15 3, Internet Chess Club
Analysis of john2001plus (1868) vs. KnightFireML (1794)


8
7
6
5
4
3
2
1

(white to move)

1.	Nf3	d5
2.	d4	g6
3.	c4	Bg7
4.	cxd5	Nf6
5.	Nc3	Nxd5
6.	e4	Nxc3
7.	bxc3	O-O
8.	Be2	c5
9.	O-O	Nc6
10.	d5	Bxc3
11.	Bh6	Bxa1
12.	Qxa1	Nd4
13.	Nxd4	cxd4
14.	Qxd4	e5
15.	Qxe5	f6
16.	Qd4	Re8
17.	Rb1	g5
18.	Bc4	Qd6
19.	Bb5	Qe5
20.	Qxe5	Rxe5
21.	Bd3	Kf7
22.	f4	gxf4
23.	Bxf4	Re8
24.	d6	b6
25.	Rc1	Bd7
26.	Rc7	Red8
27.	Bc4+	Ke8
28.	Bd5	Rac8
29.	Rxa7	Rc2
30.	e5	Rc5
31.	Bf3	Rxe5
32.	Bxe5	fxe5
33.	Rb7	b5
34.	Kf2	Kf8
35.	Ke3	Be6
36.	Rb6	Kf7
37.	Ke4	Kf6
38.	d7	Kf7
39.	Bh5+	Ke7
40.	Kxe5	Bxd7
41.	Rh6	Rh8
42.	g4	Kf8
43.	Kf6	Rg8
44.	Rxh7	Bxg4
45.	Bxg4	Rxg4
46.	Rh8+	Rg8
47.	Rxg8+	Kxg8
48.	Ke5

Click here for 42... Be8.
Click here for 43... Kg8.

Friday, March 16, 2018

Black to play and win.

6th ENCI Limburg Open 2012, Limburg NED
Dijkhuis, Tycho (1968) vs. Hovhanisian, Mher (2492)


1
2
3
4
5
6
7
8

(black to move)

1.	e4	e6
2.	d4	d5
3.	Nc3	Nf6
4.	Bg5	Be7
5.	e5	Nfd7
6.	h4	h6
7.	Be3	c5
8.	Qg4	Kf8
9.	f4	cxd4
10.	Bxd4	Nc6
11.	Nf3	a6
12.	O-O-O	b5
13.	Bd3	b4
14.	Na4	Qa5
15.	b3	Nxd4
16.	Nxd4	h5
17.	Qe2	Qc7
18.	Rde1	Nc5
19.	Nb2	g6
20.	Reg1	a5
21.	g4	Nxd3+
22.	Qxd3	Bc5
23.	gxh5	Rxh5
24.	Na4	Bxd4
25.	Qxd4	Ba6
26.	Qc5+	Qxc5
27.	Nxc5	Rf5
28.	Rg5	Rxf4
29.	Rxg6	Rc8
30.	Rxe6	Bb5
31.	h5	Rxc5
32.	h6	Bd3
33.	Rf6	Rxc2+
34.	Kd1	Rd4
35.	Rhf1	Bf5+
36.	Ke1	Rc1+
37.	Ke2	Re4+
38.	Kf2	Rf4+
39.	Kg3	Rcxf1
40.	h7	Rf1f3+
41.	Kg2	Bxh7

Thursday, March 15, 2018

White to play for equality

Live Chess, Chess.com
Analysis of john2001plus (1834) vs. SBRChessClub (1894)


8
7
6
5
4
3
2
1

(white to move)

1.	Nf3	d5
2.	d4	Nf6
3.	c4	c6
4.	e3	Bg4
5.	Qb3	Bxf3
6.	Qxb7	Nbd7
7.	gxf3	Rb8
8.	Qxc6	dxc4
9.	Bxc4	e6
10.	Nc3	Bb4
11.	e4	O-O
12.	Rg1	Qe7
13.	e5	Bxc3+
14.	bxc3	Nh5
15.	Bg5	Qe8
16.	Qe4	Nb6
17.	Bd3	g6
18.	Bh6	Ng7
19.	Qh4	Qd8
20.	Bg5	Qc7
21.	Kd2	Rfc8
22.	Rac1	Nc4+
23.	Bxc4	Qxc4
24.	Rc2	Nf5
25.	Qe4	Rb6
26.	Bf6	Ra6
27.	Ra1	Ra3
28.	Qd3	Qd5
29.	Ke1	h6
30.	Kf1

Click here for 29. f4?

Black to play and mate in 3.

Live Chess, Chess.com
Analysis of john2001plus (1834) vs. SBRChessClub (1894)


1
2
3
4
5
6
7
8

(black to move)

1.	Nf3	d5
2.	d4	Nf6
3.	c4	c6
4.	e3	Bg4
5.	Qb3	Bxf3
6.	Qxb7	Nbd7
7.	gxf3	Rb8
8.	Qxc6	dxc4
9.	Bxc4	e6
10.	Nc3	Bb4
11.	e4	O-O
12.	Rg1	Qe7
13.	e5	Bxc3+
14.	bxc3	Nh5
15.	Bg5	Qe8
16.	Qe4	Nb6
17.	Bd3	g6
18.	Bh6	Ng7
19.	Qh4	Qd8
20.	Bg5	Qc7
21.	Kd2	Rfc8
22.	Rac1	Nc4+
23.	Bxc4	Qxc4
24.	Rc2	Nf5
25.	Qe4	Rb6
26.	Bf6	Ra6
27.	Ra1	Ra3
28.	Qd3	Qd5
29.	f4	Qg2
30.	Qe2	Qxh2
31.	Rb1	Qxf4+
32.	Kd3	Raxc3+
33.	Rxc3	Qxd4+
34.	Kc2	Rxc3+
35.	Kb2	Rc5+
36.	Ka3	Qc3+

Monday, March 12, 2018

What is the strongest continuation for Black?

ICC tourney 1402 (12 3), Internet Chess Club
Analysis of Zephyr (1494) vs. john2001plus (1744)


1
2
3
4
5
6
7
8

-1

(black to move)

1.	e4	e6
2.	d4	d5
3.	exd5	exd5
4.	Bd3	Nf6
5.	Nc3	Bd6
6.	Bg5	c6
7.	Qd2	h6
8.	Be3	O-O
9.	O-O-O	Re8
10.	Bxh6	gxh6
11.	Qxh6	Bf8
12.	Qh4	Ne4
13.	Qxd8	Bh6+
14.	Kb1	Nxc3+
15.	bxc3	Rxd8

Black to play for an advantage.

ICC tourney 1402 (12 3), Internet Chess Club
Analysis of BotanicalKnight (1433) vs. john2001plus (1730)


1
2
3
4
5
6
7
8

(black to move)

1.	e4	e6
2.	f4	d5
3.	e5	c5
4.	Nf3	Nc6
5.	d3	Nge7
6.	Nc3	Nf5
7.	g3	h5
8.	Bg2	h4
9.	g4	h3
10.	Bf1	Nfd4
11.	g5	Nxf3+
12.	Qxf3	Nd4
13.	Qf2	Bd7
14.	Be3	Rc8
15.	O-O-O	Nxc2
16.	Qxc2	d4
17.	Qd2	Bc6
18.	Rg1	dxe3
19.	Qxe3	Qd4
20.	Rg3	Qxe3+
21.	Rxe3	Bg2
22.	Rg3	Bxf1
23.	Rxf1	c4
24.	Rff3	cxd3
25.	Rxd3	Rh4
26.	Rd4	Bc5
27.	Re4	Bf2
28.	Rf3	Bg1
29.	Re2	Rc4
30.	Rf1	Rg4
31.	Ree1	Bxh2
32.	f5	exf5
33.	Rxf5	Bf4+
34.	Kc2	h2
35.	Rh1	Rg1

Click here for 27. Rc4.

Sunday, March 11, 2018

Black to play and win.

ICC tourney 1402 (12 3), Internet Chess Club
john2001plus (1757) vs. chesspoet316 (1466)


1
2
3
4
5
6
7
8

(black to move)

1.	Nf3	d5
2.	d4	e6
3.	c4	Bd6
4.	c5	Be7
5.	Nc3	b6
6.	e4	bxc5
7.	dxc5	Bxc5
8.	exd5	c6
9.	dxe6	Qxd1+
10.	Nxd1	Bxe6
11.	Be3	Nd7
12.	Be2	Ngf6
13.	O-O	O-O
14.	Nd4	Bd5
15.	Nc3	Rab8
16.	Rac1	Rxb2
17.	Na4	Bxd4
18.	Nxb2	Bxb2
19.	Rc2	Ba3
20.	Bxa7	Ra8
21.	Be3	h6
22.	Rd1	Ne5
23.	f4	Neg4
24.	Bd4	h5
25.	h3	Nh6
26.	Bd3	Ne4
27.	Re1	Re8
28.	Bc5	Bxc5+
29.	Rxc5	f5
30.	Bxe4	Rxe4
31.	Rxe4	fxe4
32.	a4	Nf5
33.	a5	Ne7
34.	a6	Nc8
35.	g4	hxg4
36.	hxg4	Na7
37.	Rc2	e3
38.	Rb2	c5
39.	Kf1	Bf3
40.	Rb3	e2+
41.	Kf2	Bxg4
42.	Rb7	Nc6
43.	Rc7	Nb4
44.	a7	Nd3+
45.	Kg2	e1=Q
46.	a8=Q+	Kh7
47.	Rxg7+	Kxg7
48.	Qb7+	Kf6
49.	Qc6+	Qe6
50.	Qb7	Qe2+
51.	Kg1	Qf2+
52.	Kh1	Bf3+

Saturday, March 10, 2018

White to play and draw.

Live Chess, Chess.com
tcudoug (1446) vs. john2001plus (1857)


8
7
6
5
4
3
2
1

(white to move)

1.	e4	e6
2.	d4	d5
3.	exd5	exd5
4.	Bf4	Bd6
5.	Bxd6	Qxd6
6.	c3	Nf6
7.	Nf3	O-O
8.	Be2	Re8
9.	O-O	Bf5
10.	Nbd2	Nbd7
11.	Re1	Ne4
12.	Nxe4	dxe4
13.	Nd2	e3
14.	fxe3	Rxe3
15.	Bf3	Rae8
16.	Rxe3	Rxe3
17.	Qf1	Qe7
18.	Kf2	Nf6
19.	Re1	Ng4+
20.	Bxg4	Rxe1
21.	Qxe1	Qxe1+
22.	Kxe1	Bxg4
23.	Kf2	f6
24.	Ke3	Kf7
25.	Ne4	b6
26.	Kf4	Be6
27.	a3	Bd5
28.	g3	g5+
29.	Ke3	Ke6
30.	Nd2	b5
31.	b3	Kf5
32.	c4	bxc4
33.	bxc4	Bf7
34.	h3	h5
35.	Kf3	c6
36.	g4+	hxg4+
37.	hxg4+	Ke6
38.	Ke4	Bg6+
39.	Ke3	f5
40.	gxf5+	Bxf5
41.	Ne4	Bxe4
42.	Kxe4	Kf6
43.	Ke3	Kf5
44.	Kf3	a6
45.	a4	a5
46.	Ke3	g4
47.	Kd3	g3
48.	Ke3	g2
49.	Kf2	Ke4
50.	d5	cxd5
51.	cxd5	Kxd5
52.	Kxg2	Kc4
53.	Kf2	Kb4
54.	Ke2	Kxa4
55.	Kd2	Kb3
56.	Kc1	Ka2
57.	Kc2	a4
58.	Kc1	Ka1
59.	Kc2	a3
60.	Kc1	Ka2
61.	Kc2	Ka1
62.	Kc1	a2
63.	Kc2

White to play for a winning advantage

Live Chess, Chess.com
Analysis of john2001plus (1861) vs. WilliamAthens (1493)


8
7
6
5
4
3
2
1

(white to move)

1.	Nf3	c5
2.	e4	b6
3.	d4	cxd4
4.	Nxd4	Bb7
5.	Nc3	e6
6.	Be2	Bb4
7.	O-O	Bxc3
8.	bxc3	Bxe4
9.	Nb5	d5
10.	Bf4	Nc6
11.	Nc7+	Ke7
12.	Nxa8	Qxa8
13.	Bf3	Bxf3
14.	Qxf3	Nf6
15.	c4	dxc4
16.	Qa3+	Ke8
17.	Rad1	Qb7
18.	Rfe1	Ne7
19.	Qd6	Nc6
20.	Bg5	h6
21.	Bc1	b5
22.	Re5	Qd7
23.	Qxd7+	Nxd7
24.	Rxb5

Tuesday, March 6, 2018

What is the best move for White?

Itsyourturn.com
Coffey, John (2001) vs. Jumper (1700)


8
7
6
5
4
3
2
1

(white to move)

1.	d4	d5
2.	c4	e6
3.	Nc3	Nf6
4.	Nf3	Be7
5.	Bg5	O-O
6.	Rc1	c6
7.	e3	h6
8.	Bxf6	Bxf6
9.	Bd3	Nd7
10.	O-O	e5
11.	cxd5	exd4
12.	Nxd4	cxd5
13.	Nxd5	Bxd4
14.	exd4	Nf6
15.	Nc7	Rb8
16.	Re1	a6
17.	d5	Bg4
18.	f3	Bh5
19.	g4	Bg6
20.	Bxg6	fxg6
21.	Ne6	Qb6+
22.	Kg2	Rfe8
23.	d6	Nd7
24.	Qd4	Qxd4
25.	Nxd4	Rxe1
26.	Rxe1	Kf8
27.	Re7	Nc5
28.	b4	Nd3
29.	Ne6+	Kg8
30.	d7	Ne5
31.	d8=Q+	Rxd8
32.	Nxd8	Nc4
33.	Ne6

What is the strongest continuation for Black?

ICC 30 0, Internet Chess Club
mcplayerus (1944) vs. fiddler (1810)


1
2
3
4
5
6
7
8

(black to move)

1.	d4	Nf6
2.	Nf3	d5
3.	c4	e6
4.	Nc3	Be7
5.	Bg5	Nbd7
6.	e3	O-O
7.	Qc2	b6
8.	a3	Bb7
9.	cxd5	Nxd5
10.	Bxe7	Nxe7
11.	Bd3	Ng6
12.	h4	h6
13.	Bxg6	fxg6
14.	Qxg6	Rf6
15.	Qg3	c5
16.	Rd1	Qe8
17.	Ne5	Nxe5
18.	dxe5	Rg6
19.	Qf4	Rxg2
20.	Ne4	Qe7
21.	Kf1	Rf8
22.	Kxg2	Rxf4
23.	exf4	Bxe4+
24.	f3	Bd5

Saturday, March 3, 2018

Black to play for a winning advantage.

ICC tourney 1394 (12 3), Internet Chess Club
Analysis of TheBlackVeil (1363) vs. john2001plus (1724)


1
2
3
4
5
6
7
8

(white to move)

1.	d4	Nf6
2.	c4	e6
3.	Nc3	Bb4
4.	Qc2	d5
5.	Bg5	O-O
6.	e3	c5
7.	Nf3	cxd4
8.	exd4	h6
9.	Bh4	Nc6
10.	Bd3	dxc4
11.	Bxc4	Nxd4
12.	Nxd4	Qxd4
13.	Bxf6	Qxc4
14.	a3	Ba5
15.	Be7	Re8
16.	Bb4	Bxb4
17.	axb4	Qxb4
18.	O-O	Bd7
19.	Rfd1	Bc6
20.	Ra3	Red8
21.	Re1	Rd4
22.	Rb3	Qd6
23.	Ne2	Rd2
24.	Qc1	Rd8
25.	Nc3	Qf4
26.	Ne2	Qg4
27.	Ng3	Rd1
28.	Qc3	Rxe1+
29.	Qxe1	Rd1
30.	Re3	Rxe1+
31.	Rxe1	h5

Black to play and win

ICC tourney 1394 (12 3), Internet Chess Club
Analysis of weakfish (1372) vs. Sherlocked (1851)


1
2
3
4
5
6
7
8

-3

(black to move)

1.	e4	e6
2.	d4	d5
3.	Nd2	Nf6
4.	e5	Nfd7
5.	f4	c5
6.	c3	Nc6
7.	Bb5	Qb6
8.	Bxc6	bxc6
9.	Ne2	Ba6
10.	Nf3	cxd4
11.	Nfxd4	Nc5
12.	O-O	Ne4
13.	Re1	Be7
14.	Qb3	Rc8
15.	Be3	Nc5
16.	Qc2	Qc7
17.	Ng3	g6
18.	Nge2	O-O
19.	Qd2	Ne4
20.	Qc2	c5
21.	Nf3	Rb8
22.	b3	Qa5
23.	Bd2	Rfd8
24.	c4	Nxd2
25.	Nxd2	dxc4
26.	Nxc4	Qc7
27.	Ng3	Rd4
28.	Ne2	Rd5
29.	Nc3	Bxc4
30.	bxc4	Rd4
31.	Nb5	Qd7
32.	Nxd4	cxd4
33.	Red1	Bc5
34.	Rd3	h5
35.	Rb1	Rb6
36.	Rxb6	axb6
37.	h3	Kg7
38.	a4	Qa7
39.	Qb3	Qa5
40.	Qb5	Qe1+
41.	Kh2	Qf1
42.	Rf3	Qc1
43.	Qb3	d3
44.	Rxd3	Qxf4+
45.	Kh1	Qf1+
46.	Kh2	Bg1+
47.	Kg3	Qf2#

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;