Lesson No.012

ECO D06 White wins Opening: Intermediate Medium game, 32 moves Opening: Queen's Gambit Declined

Black

hgfe dcba

8765 4321

1234 5678

abcd efgh

White

Explanation

Game Moves

Show best moves

#	White	Best	Black	Best
1	d4	e4	d5	d5
2	c4	c4	Bf5	e6
3	cxd5	cxd5	Bxb1	Bxb1
4	Qa4+	Rxb1	c6	c6
5	dxc6	Rxb1	Nxc6	Nxc6
6	Rxb1	Rxb1	e6	e5
7	Nf3	Nf3	Bb4+	Bb4+
8	Kd1	Bd2	Qd5	a6
9	e3	e3	a6	a6
10	Bd3	a3	Rc8	Nf6
11	e4	a3	Qd8	Qd7
12	h3	Be3	Bc5	Ne7
13	Be3	Be3	Bb6	Ba7
14	Rc1	Ke2	Rb8	Ne7
15	Bf4	Ke2	Rc8	Ne7
16	Bxa6	Bxa6	Ra8	Ra8
17	Qb5	Rxc6	Kf8	Rxa6
18	Bxb7	Bxb7	Nxd4	Nxd4
19	Qb4+	Qb4+	Qd6	Ne7
20	Qxd6+	Bxd6+	Ke8	Ne7
21	Bc6+	Bc6+	Nxc6	Nxc6
22	Qxc6+	Qxc6+	Ke7	Kd8
23	Qb7+	Bd6+	Ke8	Ke8
24	Qxa8+	Qc6+	Bd8	Bd8
25	Qc6+	Qc6+	Ke7	Ke7
26	Qd6+	Bd6+	Kf6	Ke8
27	Qxd8+	Qxd8+	Ne7	Ne7
28	Qxh8	Qxh8	Nd5	Nf5
29	Be5+	Qd8+	Ke7	Ke7
30	exd5	exd5	exd5	exd5
31	Rc7+	Rc7+	Ke6	Ke6
32	Qc8#	Qc8#

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.