Real puzzles from rated games · median rating 1372 · solved 42,113,588 times
Difficulty 1200–1599
These are opera mate puzzles rated 1200–1599, the Developing level on this site. They come from real rated games: 12,305 puzzles, median rating 1372, solved 42,113,588 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 solutions at this level are built.
How the solutions work · counted by a rules engine
What a typical opera mate solution looks like
Sample: 2,000 opera mate puzzles at developing level (16.3% of all 12,305).
33.5% need 1 solver move, 52.3% need 2 solver moves, 12% need 3 solver moves, 2.2% need 4 solver moves. Median rating: 1340 for the shortest solutions, 1456 for the longest.
65.5% open with a rook move. The first move captures in 30% and gives check in 99.6%; 100% end in checkmate, 29.6% involve a sacrifice, 54.4% have White to move.
30%first move captures
99.6%first move gives check
100%end in checkmate
29.6%involve a sacrifice
How many moves does the solver need?
1 solver move
33.5% · median rating 1340
2 solver moves
52.3% · median rating 1371
3 solver moves
12% · median rating 1418
4 solver moves
2.2% · median rating 1456
Which piece plays the key move?
Key move by a rook
65.5%
Key move by a queen
22.2%
Key move by a bishop
8.3%
Key move by a knight
2.3%
Key move by a pawn
1.6%
What does the solver win?
Captures nothing along the line
48%
Most valuable capture: rook
25.8%
Most valuable capture: pawn
11.4%
Most valuable capture: bishop
7.1%
Most valuable capture: knight
4.6%
Most valuable capture: queen
3%
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)
74.6%
Up to 2 pawns’ worth
10.7%
3–4 points (about a minor piece)
6.5%
5–8 points (a rook or more)
7.4%
9 or more points (a queen’s worth)
0.9%
How much is left on the board?
28 or more pieces on the board
1.2%
21–27 pieces
25.5%
13–20 pieces
63.8%
12 pieces or fewer
9.4%
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: f8 (14%), d8 (12.2%), e8 (9.1%), h7 (6.7%), g8 (6.2%).
1.5
1.7
3.5
12.2
9.1
14
6.2
6.2
8
2.3
1.8
4.2
3.2
6.7
7
1.3
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1.5
4.9
6
1
1.2
2.5
5
4
3
2
1
a
b
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d
e
f
g
h
Counted from the same 2,000-puzzle sample. Squares under 1% are left blank.
Study positions
The most-solved opera mate 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 1221 · solved 4,867 times
· Mate in 2. It ends in checkmate on c1 with the rook. The solver captures a bishop.Reveal line
Opponent's last move: Nxe1
Solution: Rd1+ → Bc1 → Rxc1#
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Black to move · rating 1222 · solved 3,721 times
· Mate in 3. It ends in checkmate on f2 with the rook. The solver captures a pawn.Reveal line
Opponent's last move: Kh5
Solution: Rxh2+ → Kg4 → f5+ → Kf3 → Rf2#
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White to move · rating 1229 · solved 3,989 times
· Mate in 1. It ends in checkmate on c7 with the rook.Reveal line
Opponent's last move: Nb3
Solution: Rc7#
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Black to move · rating 1252 · solved 3,443 times
· Mate in 1. It ends in checkmate on d3 with the rook.Reveal line
Opponent's last move: Rh1
Solution: Rd3#
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White to move · rating 1335 · solved 4,672 times
· Mate in 2. It ends in checkmate on g7 with the rook. It gives up the queen (Qxg7+) on the way. The solver captures 2 pieces (pawn, rook).Reveal line
Opponent's last move: Bh4
Solution: Qxg7+ → Rxg7 → Rxg7#
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Black to move · rating 1391 · solved 7,442 times
· Mate in 1. It ends in checkmate on f2 with the rook. The solver captures a pawn.Reveal line
Opponent's last move: Rah7
Solution: Rxf2#
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White to move · rating 1394 · solved 2,982 times
· Mate in 2. It ends in checkmate on h4 with the rook.Reveal line
Opponent's last move: Kh3
Solution: Rh7+ → Kg4 → Rh4#
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White to move · rating 1407 · solved 3,247 times
· Mate in 2. It ends in checkmate on f8 with the rook. It gives up the queen (Qxg8+) on the way. The solver captures a rook.Reveal line
Opponent's last move: Nxh4
Solution: Qxg8+ → Kxg8 → Rf8#
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White to move · rating 1489 · solved 6,092 times
· Mate in 5. It ends in checkmate on a6 with the rook. The solver captures 2 pieces (rook, pawn).Reveal line
White to move · rating 1493 · solved 4,937 times
· Mate in 4. It ends in checkmate on f8 with the rook. It gives up the queen (Qxc8+) on the way. The solver captures 2 pieces (rook, bishop).Reveal line
White to move · rating 1497 · solved 3,077 times
· Mate in 2. It ends in checkmate on g8 with the rook.Reveal line
Opponent's last move: axb3
Solution: Rf8+ → Kg7 → Rg8#
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White to move · rating 1497 · solved 2,984 times
· Mate in 2. It ends in checkmate on h7 with the rook. The solver captures 2 pieces (knight, pawn).Reveal line
Opponent's last move: Qc3
Solution: Bxf6+ → Bxf6 → Rxh7#
Positions and move sequences come from real rated games (CC0 data). Engine evaluations, where shown, are stored evaluations of the position (CC0).