Lesson No.003

ECO B14 Black wins Opening: Intermediate Medium game, 42 moves Opening: Caro-Kann Defense

Black

hgfe dcba

8765 4321

1234 5678

abcd efgh

White

Explanation

Game Moves

Show best moves

#	White	Best	Black	Best
1	e4	e4	c6	e5
2	d4	d4	d5	d5
3	exd5	e5	cxd5	cxd5
4	c4	Nf3	Nc6	Nf6
5	Nc3	cxd5	Nf6	Nf6
6	Nf3	Nf3	e6	Bg4
7	cxd5	c5	exd5	exd5
8	Bb5	Bd3	Bg4	Bd6
9	Bg5	Qa4	Bd6	Be7
10	Qe2+	h3	Be7	Kf8
11	h3	Bxf6	Be6	Bxf3
12	O-O	Ne5	O-O	O-O
13	Rfe1	Bxc6	h6	h6
14	Be3	Bh4	Rc8	Rc8
15	Bd3	Rac1	Bb4	Bb4
16	Bf4	a3	Na5	Re8
17	Qc2	Rac1	Nc4	Nc4
18	Kh1	Rac1	Nxb2	Nxb2
19	Bf1	Qxb2	Bxc3	Bxc3
20	Re2	Reb1	Bxd4	Bxd4
21	Qd2	Nxd4	Bc3	Bc3
22	Rc1	Qc2	Bxd2	Bxd2
23	Rxe6	Rxc8	Rxc1	Bxc1
24	Nxd2	Nxd2	fxe6	Rxf1+
25	Kg1	Bxh6	Rc6	Rxf1+
26	Kh2	Nf3	Nc4	Rc8
27	Nb3	Nf3	e5	e5
28	Bg3	Bg3	Re8	Re8
29	Bh4	a4	Qc8	Qb6
30	a4	g3	Rce6	h5
31	g4	Be2	Ne4	Nd6
32	Bd3	Bd3	Kf8	Qc7
33	f4	Bb1	Rd6	exf4
34	f5	Na5	Ne3	Ne3
35	Na5	f6	a6	Qc1
36	Nb3	f6	Qc3	Qc3
37	Be2	Bxe4	Qb2	Qc2
38	Be7+	Nc1	Kxe7	Rxe7
39	Nd4	Nc1	exd4	exd4
40	f6+	f6+	gxf6	gxf6
41	Kg1	h4	Qxe2	Qxe2
42	h4	h4	Qg2#	Qg2#

Detailed Analysis

Evaluation Chart

Evaluation: How good the position is, in pawns (1 pawn = 1.0). + (blue) means you are better, − (red) means your opponent is. Capped at ±10. Touch a point to see the actual value.

◆ Mate: A position with checkmate in sight (shown at ±10). Touch a point to see the moves to checkmate (M3: you mate in 3, -M3: your opponent mates in 3).

Skill Radar

Estimated from engine evaluations. It may not match your actual strength.

How Scores Work: For each move, the winning chance (calculated from the evaluation) before and after the move is compared; the less it drops, the higher the move's accuracy. Each item is the average accuracy of its moves (out of 100). Items with fewer than 3 moves show (-) (Tactics is scored from a single move).

Opening	Moves 1 to 10
Tactics	Moves right after the opponent dropped their winning chance by 10% or more (did you take the chance?)
Strategy	Moves other than Opening, Endgame and Tactics
Endgame	Moves once both sides together have 8 or fewer pieces other than kings and pawns
Consistency	Share of all moves that did not drop the winning chance by 10% or more

* The win % and accuracy formulas are based on Lichess's calculations.

Win % and Accuracy

Win %: Your chance of winning (0–100), calculated from the evaluation after each move.

Accuracy: For each of your moves, a score (0–100) comparing your winning chance before and after the move. A move that keeps your winning chance scores 100.