Real puzzles from rated games · median rating 1128 · solved 9,979,489 times
Opening: Scandinavian Defense
These mate in 2 puzzles were set in games that began as the Scandinavian Defense: 4,895 puzzles, median rating 1128, solved 9,979,489 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 mate in 2 solution looks like
Sample: 2,000 mate in 2 puzzles from Scandinavian Defense games (40.9% of all 4,895).
100% need 2 solver moves. Median rating: 1129 for the shortest solutions, 1129 for the longest.
50.8% open with a queen move. The first move captures in 41.4% and gives check in 99.9%; 100% end in checkmate, 26.2% involve a sacrifice, 49% have White to move.
41.4%first move captures
99.9%first move gives check
100%end in checkmate
26.2%involve a sacrifice
How many moves does the solver need?
2 solver moves
100% · median rating 1129
Which piece plays the key move?
Key move by a queen
50.8%
Key move by a knight
20.4%
Key move by a bishop
15.8%
Key move by a rook
12.2%
Key move by a pawn
0.6%
What does the solver win?
Most valuable capture: pawn
31.3%
Captures nothing along the line
27.6%
Most valuable capture: rook
16.9%
Most valuable capture: knight
15.6%
Most valuable capture: queen
4.4%
Most valuable capture: bishop
4.2%
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)
51%
Up to 2 pawns’ worth
27.6%
3–4 points (about a minor piece)
7.4%
5–8 points (a rook or more)
11.2%
9 or more points (a queen’s worth)
2.8%
How much is left on the board?
28 or more pieces on the board
13.3%
21–27 pieces
78.3%
13–20 pieces
8.4%
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 (16.7%), f6 (14.3%), d8 (8.8%), e8 (7.1%), f7 (6.1%).
1.1
1.2
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1
8
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h
Counted from the same 2,000-puzzle sample. Squares under 1% are left blank.
Study positions
The most-solved mate in 2 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 857 · solved 1,122 times
· Mate in 2. It ends in checkmate on h2 with the queen. The solver captures 2 pieces (pawn, pawn).Reveal line
Opponent's last move: Bxf5
Solution: Qxf2+ → Kh1 → Qxh2#
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Black to move · rating 977 · solved 1,112 times
· Mate in 2. It ends in checkmate on h1 with the queen.Reveal line
Opponent's last move: Nxd4
Solution: Qh2+ → Kf1 → Qh1#
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Black to move · rating 1171 · solved 1,176 times
· Mate in 2. It ends in checkmate on h2 with the queen. The solver captures a knight.Reveal line
Opponent's last move: Ng3
Solution: Nxf3+ → gxf3 → Qh2#
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Black to move · rating 1200 · solved 1,887 times
· Mate in 2. It ends in checkmate on h2 with the queen. The solver captures a knight.Reveal line
Opponent's last move: Nxf3
Solution: Nxf3+ → gxf3 → Qh2#
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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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White to move · rating 1222 · solved 2,077 times
· Mate in 2. It ends in checkmate on c8 with the rook. The solver captures a rook.Reveal line
Opponent's last move: Rxc7
Solution: Rb8+ → Rc8 → Rxc8#
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White to move · rating 1458 · solved 2,100 times
· Mate in 2. It ends in checkmate on d8 with the rook. The solver captures 2 pieces (pawn, rook).Reveal line
Opponent's last move: dxc4
Solution: Nxa7+ → Kb8 → Rxd8#
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White to move · rating 1660 · solved 1,114 times
· Mate in 2. It ends in checkmate on a6 with the bishop. It gives up the queen (Qxc6+) on the way. The solver captures a pawn.Reveal line
Opponent's last move: g4
Solution: Qxc6+ → bxc6 → Ba6#
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White to move · rating 1727 · solved 1,618 times
· Mate in 2. It ends in checkmate on h3 with the rook. It gives up the queen (Qxh7+) on the way. The solver captures a pawn.Reveal line
Opponent's last move: exf4
Solution: Qxh7+ → Kxh7 → Rh3#
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White to move · rating 1853 · solved 1,717 times
· Mate in 2. It ends in checkmate on a6 with the bishop. It gives up the queen (Qxc6+) on the way. The solver captures a pawn.Reveal line
Opponent's last move: Qc3
Solution: Qxc6+ → bxc6 → Ba6#
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Black to move · rating 2086 · solved 29 times
· Mate in 2. It ends in checkmate on e3 with the queen. It gives up the knight (Ne4+) on the way.Reveal line
Opponent's last move: hxg6
Solution: Ne4+ → fxe4 → Qe3#
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White to move · rating 2503 · solved 111 times
· Mate in 2. It ends in checkmate on c5 with the bishop. It gives up the rook (Re7+) on the way.Reveal line
Opponent's last move: Re8
Solution: Re7+ → Kxe7 → Bc5#
Positions and move sequences come from real rated games (CC0 data). Engine evaluations, where shown, are stored evaluations of the position (CC0).