Real puzzles from rated games · median rating 1293 · solved 16,892,918 times
Opening: Scotch Game
These opening tactics puzzles were set in games that began as the Scotch Game: 7,825 puzzles, median rating 1293, solved 16,892,918 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 Scotch Game games (25.6% of all 7,825).
31.8% need 1 solver move, 49.4% need 2 solver moves, 15.6% need 3 solver moves, 2.8% need 4 solver moves, 0.5% need 5 or more solver moves. Median rating: 883 for the shortest solutions, 2185 for the longest.
48.4% open with a queen move. The first move captures in 51.8% and gives check in 62.8%; 39.3% end in checkmate, 17.4% involve a sacrifice, 63% have White to move.
51.8%first move captures
62.8%first move gives check
39.3%end in checkmate
17.4%involve a sacrifice
How many moves does the solver need?
1 solver move
31.8% · median rating 883
2 solver moves
49.4% · median rating 1443
3 solver moves
15.6% · median rating 1774
4 solver moves
2.8% · median rating 2144
5+ solver moves
0.5% · median rating 2185
Which piece plays the key move?
Key move by a queen
48.4%
Key move by a knight
20.2%
Key move by a bishop
19.6%
Key move by a pawn
6.7%
Key move by a rook
3.9%
Key move by the king
1.2%
What does the solver win?
Most valuable capture: queen
28.3%
Captures nothing along the line
20.9%
Most valuable capture: pawn
18%
Most valuable capture: knight
15.2%
Most valuable capture: bishop
11.5%
Most valuable capture: rook
6%
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)
26.8%
Up to 2 pawns’ worth
21.8%
3–4 points (about a minor piece)
28.2%
5–8 points (a rook or more)
14.9%
9 or more points (a queen’s worth)
8.3%
How much is left on the board?
28 or more pieces on the board
43.5%
21–27 pieces
56.5%
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: f7 (19.5%), h7 (6.8%), f6 (5.8%), d5 (4.2%), e5 (4.1%).
3.5
1.8
8
1
2.1
19.5
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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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White to move · rating 726 · solved 1,721 times
· Mate in 1. It ends in checkmate on f7 with the queen.Reveal line
Opponent's last move: Kf8
Solution: Qf7#
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White to move · rating 1023 · solved 1,591 times
· Mate in 2. It ends in checkmate on f8 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Bxe3
Solution: Qxf7+ → Kd8 → Qf8#
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White to move · rating 1061 · solved 1,523 times
· Mate in 1. It ends in checkmate on f7 with the bishop. The solver captures a pawn.Reveal line
Opponent's last move: Bxd1
Solution: Bxf7#
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White to move · rating 1277 · solved 2,437 times
· Mate in 2. It ends in checkmate on g6 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Nxc4
Solution: Qh5+ → g6 → Qxg6#
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Black to move · rating 1422 · solved 1,598 times
· 4 solver moves to find. It gives up the rook (Rxb2) and the queen (Qxc3+) on the way. The solver captures 4 pieces (pawn, knight, queen, rook).Reveal line
White to move · rating 1545 · solved 2,024 times
· 3 solver moves to find. The solver captures 3 pieces (knight, queen, knight).Reveal line
Opponent's last move: Ne5
Solution: Nxe5 → dxe5 → Qxd8 → Rxd8 → Bxe7
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White to move · rating 1546 · solved 2,013 times
· Mate in 1. It ends in checkmate on h6 with the queen.Reveal line
Opponent's last move: Kf8
Solution: Qh6#
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Black to move · rating 1604 · solved 477 times
· Mate in 2. It ends in checkmate on e1 with the queen.Reveal line
Opponent's last move: Nxc5
Solution: Nf3+ → Kd1 → Qe1#
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Black to move · rating 1644 · solved 840 times
· 2 solver moves to find. The solver captures 2 pieces (bishop, queen).Reveal line
Opponent's last move: c7+
Solution: Qxb5+ → Qe2+ → Qxe2+
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White to move · rating 1738 · solved 665 times
· 2 solver moves to find. The solver captures 2 pieces (queen, bishop).Reveal line
Opponent's last move: Qd5
Solution: Qxd5 → cxd5 → Rxe6+
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White to move · rating 2093 · solved 575 times
· Mate in 1. It ends in checkmate on h6 with the knight.Reveal line
Opponent's last move: d5
Solution: Nh6#
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Black to move · rating 2232 · solved 272 times
· 5 solver moves to find. It gives up the rook (Rxf2) on the way. The solver captures 3 pieces (pawn, rook, bishop).Reveal line