Real puzzles from rated games · median rating 946 · solved 28,180,048 times
Opening: French Defence
These checkmate puzzles were set in games that began as the French Defence: 26,195 puzzles, median rating 946, solved 28,180,048 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 checkmate solution looks like
Sample: 2,000 checkmate puzzles from French Defence games (7.6% of all 26,195).
70% need 1 solver move, 24% need 2 solver moves, 4.6% need 3 solver moves, 0.8% need 4 solver moves, 0.6% need 5 or more solver moves. Median rating: 887 for the shortest solutions, 2254 for the longest.
67.2% open with a queen move. The first move captures in 46.8% and gives check in 99.8%; 100% end in checkmate, 10.3% involve a sacrifice, 64.4% have White to move.
46.8%first move captures
99.8%first move gives check
100%end in checkmate
10.3%involve a sacrifice
How many moves does the solver need?
1 solver move
70% · median rating 887
2 solver moves
24% · median rating 1139
3 solver moves
4.6% · median rating 1465
4 solver moves
0.8% · median rating 1636
5+ solver moves
0.6% · median rating 2254
Which piece plays the key move?
Key move by a queen
67.2%
Key move by a knight
13.6%
Key move by a rook
9.9%
Key move by a bishop
8.6%
Key move by a pawn
0.8%
What does the solver win?
Captures nothing along the line
41.4%
Most valuable capture: pawn
37.2%
Most valuable capture: rook
9.1%
Most valuable capture: knight
6%
Most valuable capture: queen
3.2%
Most valuable capture: bishop
3.1%
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)
48.4%
Up to 2 pawns’ worth
36.8%
3–4 points (about a minor piece)
5.8%
5–8 points (a rook or more)
7.3%
9 or more points (a queen’s worth)
1.7%
How much is left on the board?
28 or more pieces on the board
17.6%
21–27 pieces
77.4%
13–20 pieces
5%
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: h7 (27.5%), f7 (12.1%), g7 (10.9%), e8 (7.6%), d8 (5.2%).
1.1
1.1
5.2
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a
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f
g
h
Counted from the same 2,000-puzzle sample. Squares under 1% are left blank.
Study positions
The most-solved checkmate 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 1026 · solved 16,148 times
· Mate in 1. It ends in checkmate on g7 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Kh7
Solution: Qxg7#
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White to move · rating 1067 · solved 3,601 times
· Mate in 2. It ends in checkmate on f7 with the queen. The solver captures 2 pieces (pawn, pawn).Reveal line
Opponent's last move: Qxg5
Solution: Qxd7+ → Kf8 → Qxf7#
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Black to move · rating 1138 · solved 4,132 times
· Mate in 2. It ends in checkmate on b2 with the queen.Reveal line
Opponent's last move: Bb1
Solution: Ba3+ → Kc2 → Qb2#
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White to move · rating 1243 · solved 3,630 times
· Mate in 2. It ends in checkmate on b5 with the knight. The solver captures a pawn.Reveal line
Opponent's last move: fxg5
Solution: Qxg5+ → Kd6 → Nb5#
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Black to move · rating 1291 · solved 2,605 times
· Mate in 3. It ends in checkmate on h2 with the rook. It gives up the knight (Ng3+) on the way. The solver captures 2 pieces (pawn, knight).Reveal line
Opponent's last move: Qd2
Solution: Ng3+ → hxg3 → hxg3+ → Nh2 → Rxh2#
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White to move · rating 1348 · solved 3,357 times
· Mate in 2. It ends in checkmate on h6 with the bishop.Reveal line
Opponent's last move: Ng6
Solution: Qh7+ → Kf8 → Bh6#
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White to move · rating 1481 · solved 3,018 times
· Mate in 2. It ends in checkmate on h4 with the queen.Reveal line
Opponent's last move: Rd6
Solution: Ne7+ → Kh8 → Qh4#
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White to move · rating 1622 · solved 1,602 times
· Mate in 1. It ends in checkmate on h6 with the queen.Reveal line
Opponent's last move: Bxe6
Solution: Qh6#
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White to move · rating 1723 · solved 1,460 times
· Mate in 3. It ends in checkmate on h8 with the rook. It gives up the queen (Qh8+) on the way. The solver captures a knight.Reveal line
Opponent's last move: Ng6
Solution: Qh7+ → Kf8 → Qh8+ → Nxh8 → Rxh8#
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White to move · rating 1838 · solved 1,185 times
· Mate in 3. It ends in checkmate on h8 with the rook. It gives up the queen (Qh8+) on the way.Reveal line
Opponent's last move: Ne5
Solution: Qh8+ → Kxh8 → Ng6+ → Kg8 → Rh8#
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White to move · rating 2053 · solved 236 times
· Mate in 3. It ends in checkmate on g6 with the knight. It gives up the bishop (Bxh7+) on the way. The solver captures 2 pieces (pawn, pawn).Reveal line
Opponent's last move: Bf6
Solution: Bxh7+ → Nxh7 → Qxf7+ → Kh8 → Ng6#
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White to move · rating 2111 · solved 228 times
· Mate in 4. It ends in checkmate on g7 with the queen. The solver captures 2 pieces (knight, pawn).Reveal line