Opening tactics Puzzles from the Queen's Gambit Declined
Real puzzles from rated games · median rating 1334 · solved 22,995,300 times
Opening: Queen's Gambit Declined
These opening tactics puzzles were set in games that began as the Queen's Gambit Declined: 9,648 puzzles, median rating 1334, solved 22,995,300 times. The twelve below are among the most-solved of them; try each on the board, then read the numbers further down to see how the solutions are built.
How the solutions work · counted by a rules engine
What a typical opening tactics solution looks like
Sample: 2,000 opening tactics puzzles from Queen's Gambit Declined games (20.7% of all 9,648).
22.8% need 1 solver move, 57.2% need 2 solver moves, 17.8% need 3 solver moves, 2% need 4 solver moves. Median rating: 856 for the shortest solutions, 2097 for the longest.
42.9% open with a queen move. The first move captures in 52.2% and gives check in 62%; 27.8% end in checkmate, 15.8% involve a sacrifice, 51.6% have White to move.
52.2%first move captures
62%first move gives check
27.8%end in checkmate
15.8%involve a sacrifice
How many moves does the solver need?
1 solver move
22.8% · median rating 856
2 solver moves
57.2% · median rating 1343
3 solver moves
17.8% · median rating 1674
4 solver moves
2% · median rating 2097
Which piece plays the key move?
Key move by a queen
42.9%
Key move by a bishop
23.3%
Key move by a knight
22.5%
Key move by a pawn
6.8%
Key move by a rook
3.2%
Key move by the king
1.2%
What does the solver win?
Most valuable capture: queen
27.2%
Most valuable capture: bishop
19.5%
Most valuable capture: knight
18%
Captures nothing along the line
15.4%
Most valuable capture: pawn
13.6%
Most valuable capture: rook
6.4%
Material balance along the whole line, counting every capture by both sides (pawn 1, minor piece 3, rook 5, queen 9):
No material gained (mating or positional)
20%
Up to 2 pawns’ worth
17.5%
3–4 points (about a minor piece)
39.8%
5–8 points (a rook or more)
14.7%
9 or more points (a queen’s worth)
8%
How much is left on the board?
28 or more pieces on the board
43.6%
21–27 pieces
56.4%
13–20 pieces
0%
12 pieces or fewer
0%
How it is counted: every puzzle in the sample is replayed move by move with a chess rules engine. A sacrifice means a piece that is captured on the very next ply and was worth more than what it captured itself (pawn 1, minor piece 3, rook 5, queen 9). Sample of 2,000 puzzles. Percentages are shares of the sample.
Where it happens
Where the key move lands
Where the solver’s first move ends, drawn from their own side (rank 1 is their back rank). Busiest squares: a4 (13.4%), h7 (11.1%), f7 (6.3%), c6 (5.7%), b5 (5.6%).
1.1
3.5
8
4.2
1.9
1.5
6.3
1.6
11.1
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5.7
3.9
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6
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4.2
2.8
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2.7
5
13.4
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1
4.8
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g
h
Counted from the same 2,000-puzzle sample. Squares under 1% are left blank.
Study positions
The most-solved opening tactics puzzles, from each difficulty level. Play each one on the board, then open the answer for the full line.
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Black to move · rating 958 · solved 1,771 times
· 2 solver moves to find. It gives up the bishop (Bg5+) on the way. The solver captures a queen.Reveal line
Opponent's last move: Bxd4
Solution: Bg5+ → Qxg5 → Qxg5+
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White to move · rating 1106 · solved 2,245 times
· Mate in 2. It ends in checkmate on h7 with the queen. The solver captures a knight.Reveal line
Opponent's last move: Rc8
Solution: Nxf6+ → Qxf6 → Qh7#
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Black to move · rating 1141 · solved 1,836 times
· 2 solver moves to find. The solver captures a knight.Reveal line
Opponent's last move: Nxd4
Solution: Bb4+ → Bd2 → Qxd4
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Black to move · rating 1328 · solved 1,394 times
· 2 solver moves to find. The solver captures 2 pieces (knight, bishop).Reveal line
Opponent's last move: Nc3
Solution: Bxc3 → b4 → Bxd2+
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White to move · rating 1395 · solved 1,413 times
· 3 solver moves to find. It gives up the queen (Qxb4) on the way. The solver captures 2 pieces (bishop, queen).Reveal line
Opponent's last move: Bb4
Solution: Qa4+ → Bd7 → Qxb4 → Qxb4 → Bxb4
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White to move · rating 1414 · solved 1,650 times
· 2 solver moves to find. The solver captures 2 pieces (bishop, queen).Reveal line
Opponent's last move: Qxd3
Solution: Nxe7+ → Kh8 → Bxd3
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White to move · rating 1584 · solved 1,297 times
· 3 solver moves to find. The solver captures 3 pieces (pawn, rook, queen).Reveal line
Opponent's last move: Qxd4
Solution: cxb7+ → axb5 → bxa8=Q → Qxe4+ → Qxe4
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White to move · rating 1610 · solved 1,324 times
· 3 solver moves to find. The solver captures 2 pieces (knight, bishop).Reveal line
Opponent's last move: Bb4
Solution: Qa4+ → Nc6 → dxc6 → Bxc3+ → bxc3
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Black to move · rating 1623 · solved 1,121 times
· Mate in 3. It ends in checkmate on g3 with the queen. It gives up the bishop (Bh4+) on the way. The solver captures 2 pieces (knight, pawn).Reveal line
Opponent's last move: h3
Solution: Bh4+ → Nxh4 → Qxh4+ → g3 → Qxg3#
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White to move · rating 1715 · solved 913 times
· Mate in 1. It ends in checkmate on c8 with the rook.Reveal line
Opponent's last move: Qd7
Solution: Rc8#
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Black to move · rating 2029 · solved 631 times
· Mate in 2. It ends in checkmate on g3 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Nxd5
Solution: Qh4+ → g3 → Qxg3#
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Black to move · rating 2229 · solved 330 times
· 3 solver moves to find. It gives up the queen (Qxe2+) on the way. The solver captures 3 pieces (bishop, knight, queen).Reveal line
Opponent's last move: Nf3
Solution: Qxe2+ → Kxe2 → Bxb5+ → Qxb5+ → axb5
Positions and move sequences come from real rated games (CC0 data). Engine evaluations, where shown, are stored evaluations of the position (CC0).