Real puzzles from rated games · median rating 1361 · solved 17,853,483 times
Opening: Ruy Lopez
These opening tactics puzzles were set in games that began as the Ruy Lopez: 7,484 puzzles, median rating 1361, solved 17,853,483 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 Ruy Lopez games (26.7% of all 7,484).
24.2% need 1 solver move, 53% need 2 solver moves, 19% need 3 solver moves, 3.5% need 4 solver moves. Median rating: 859 for the shortest solutions, 2023 for the longest.
42% open with a queen move. The first move captures in 57.6% and gives check in 54.7%; 30.4% end in checkmate, 17.2% involve a sacrifice, 54.6% have White to move.
57.6%first move captures
54.7%first move gives check
30.4%end in checkmate
17.2%involve a sacrifice
How many moves does the solver need?
1 solver move
24.2% · median rating 859
2 solver moves
53% · median rating 1400
3 solver moves
19% · median rating 1755
4 solver moves
3.5% · median rating 2023
Which piece plays the key move?
Key move by a queen
42%
Key move by a bishop
20.9%
Key move by a knight
19.8%
Key move by a pawn
10.6%
Key move by a rook
4.6%
Key move by the king
2%
What does the solver win?
Most valuable capture: queen
24.7%
Most valuable capture: pawn
20.2%
Most valuable capture: knight
17.4%
Most valuable capture: bishop
14.4%
Captures nothing along the line
13.5%
Most valuable capture: rook
9.7%
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)
20.4%
Up to 2 pawns’ worth
25%
3–4 points (about a minor piece)
32.2%
5–8 points (a rook or more)
15.7%
9 or more points (a queen’s worth)
6.7%
How much is left on the board?
28 or more pieces on the board
52.9%
21–27 pieces
47.1%
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 (15%), h7 (10.5%), f6 (6.2%), d5 (5.2%), h5 (4.7%).
2.7
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8
2.6
15
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10.5
7
3
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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 617 · solved 2,039 times
· Mate in 1. It ends in checkmate on c7 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Bxf3
Solution: Qxc7#
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Black to move · rating 651 · solved 1,941 times
· Mate in 1. It ends in checkmate on f2 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Kf1
Solution: Qxf2#
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White to move · rating 872 · solved 2,134 times
· Mate in 2. It ends in checkmate on f8 with the queen. The solver captures 2 pieces (pawn, bishop).Reveal line
Opponent's last move: Qxg5
Solution: Qxf7+ → Kd8 → Qxf8#
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White to move · rating 1462 · solved 1,231 times
· Mate in 3. It ends in checkmate on f7 with the queen. The solver captures a knight.Reveal line
Opponent's last move: Kg8
Solution: Qb3+ → Nd5 → Qxd5+ → Kf8 → Qf7#
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White to move · rating 1499 · solved 1,978 times
· 3 solver moves to find. It gives up the knight (Nd6+) on the way. The solver captures 2 pieces (rook, bishop).Reveal line
Opponent's last move: Bxc4
Solution: Nd6+ → cxd6 → Qxe8+ → Kc7 → dxc4
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Black to move · rating 1552 · solved 1,151 times
· 2 solver moves to find. The solver captures a knight.Reveal line
Opponent's last move: Nxc7+
Solution: Kd8 → Qf3 → Kxc7
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White to move · rating 1555 · solved 1,075 times
· Mate in 1. It ends in checkmate on g6 with the knight.Reveal line
Opponent's last move: Kh8
Solution: Ng6#
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Black to move · rating 1613 · solved 1,199 times
· Mate in 1. It ends in checkmate on f2 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Kf1
Solution: Qxf2#
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White to move · rating 1740 · solved 1,082 times
· Mate in 2. It ends in checkmate on e8 with the rook. It gives up the queen (Qxf7+) on the way. The solver captures a pawn.Reveal line
Opponent's last move: Qh4
Solution: Qxf7+ → Rxf7 → Re8#
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White to move · rating 1780 · solved 1,000 times
· 2 solver moves to find. The solver captures a rook.Reveal line
Opponent's last move: Kf7
Solution: Qf3+ → Kg8 → Qxa8
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White to move · rating 2224 · solved 140 times
· 4 solver moves to find. It gives up the rook (Rxe5+) on the way. The solver captures 2 pieces (knight, queen).Reveal line
White to move · rating 2420 · solved 269 times
· 3 solver moves to find. It gives up the rook (Rxg7+) on the way. The solver captures 2 pieces (pawn, bishop).Reveal line
Opponent's last move: Nd7
Solution: Rxg7+ → Kxg7 → Qg4+ → Bg5 → Bxg5
Positions and move sequences come from real rated games (CC0 data). Engine evaluations, where shown, are stored evaluations of the position (CC0).