Real puzzles from rated games · median rating 947 · solved 100,236,487 times
Difficulty 600–1199
These are opening tactics puzzles rated 600–1199, the Foundation level on this site. They come from real rated games: 120,764 puzzles, median rating 947, solved 100,236,487 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 opening tactics solution looks like
Sample: 2,000 opening tactics puzzles at foundation level (1.7% of all 120,764).
59.3% need 1 solver move, 38% need 2 solver moves, 2.6% need 3 solver moves. Median rating: 854 for the shortest solutions, 1060 for the longest.
60.4% open with a queen move. The first move captures in 52.9% and gives check in 88.8%; 66.9% end in checkmate, 8% involve a sacrifice, 54.9% have White to move.
52.9%first move captures
88.8%first move gives check
66.9%end in checkmate
8%involve a sacrifice
How many moves does the solver need?
1 solver move
59.3% · median rating 854
2 solver moves
38% · median rating 1044
3 solver moves
2.6% · median rating 1060
Which piece plays the key move?
Key move by a queen
60.4%
Key move by a knight
19.3%
Key move by a bishop
16.3%
Key move by a rook
2%
Key move by a pawn
1.2%
Key move by the king
0.6%
What does the solver win?
Most valuable capture: pawn
30.6%
Captures nothing along the line
29.6%
Most valuable capture: queen
15.5%
Most valuable capture: knight
10%
Most valuable capture: bishop
9.6%
Most valuable capture: rook
4.7%
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)
31.4%
Up to 2 pawns’ worth
31.8%
3–4 points (about a minor piece)
20.6%
5–8 points (a rook or more)
8.6%
9 or more points (a queen’s worth)
7.6%
How much is left on the board?
28 or more pieces on the board
56.2%
21–27 pieces
43.8%
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 (23%), h7 (14%), f6 (6.3%), h5 (4.8%), a4 (4%).
1.1
4
1.5
1
8
2.5
1
1.7
23
4
14
7
2.7
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3
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1
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3
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4
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1
4
3
2
1
a
b
c
d
e
f
g
h
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 804 · solved 2,937 times
· Mate in 1. It ends in checkmate on a8 with the rook.Reveal line
Opponent's last move: Nb4
Solution: Ra8#
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White to move · rating 978 · solved 2,822 times
· Mate in 2. It ends in checkmate on h7 with the queen.Reveal line
Opponent's last move: Kxh8
Solution: Qh5+ → Kg8 → Qh7#
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White to move · rating 1012 · solved 2,385 times
· Mate in 1. It ends in checkmate on h7 with the queen.Reveal line
Opponent's last move: Kh8
Solution: Qh7#
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Black to move · rating 1083 · solved 2,869 times
· 2 solver moves to find. The solver captures a queen.Reveal line
Opponent's last move: f4
Solution: Bc5+ → Kh1 → Rxd8
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Black to move · rating 1086 · solved 2,712 times
· 2 solver moves to find. The solver captures 2 pieces (pawn, queen).Reveal line
Opponent's last move: Bxg7
Solution: Nxf3+ → Ke2 → Nxd2
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White to move · rating 1097 · solved 2,617 times
· Mate in 1. It ends in checkmate on c5 with the bishop.Reveal line
Opponent's last move: Rb8
Solution: Bc5#
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White to move · rating 1111 · solved 2,682 times
· Mate in 2. It ends in checkmate on f7 with the queen. The solver captures a bishop.Reveal line
Opponent's last move: Be6
Solution: f7+ → Bxf7 → Qxf7#
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White to move · rating 1140 · solved 2,551 times
· Mate in 2. It ends in checkmate on h7 with the queen. It gives up the knight (Nf6+) on the way.Reveal line
Opponent's last move: Nxf4
Solution: Nf6+ → gxf6 → Qh7#
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Black to move · rating 1167 · solved 3,763 times
· 2 solver moves to find. The solver captures a pawn.Reveal line
Opponent's last move: f3
Solution: Qh4+ → g3 → Nxg3
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Black to move · rating 1174 · solved 3,434 times
· 2 solver moves to find. The solver captures 2 pieces (knight, rook).Reveal line
Opponent's last move: Qb3
Solution: Nxf3+ → gxf3 → Qxe1+
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White to move · rating 1175 · solved 2,978 times
· Mate in 1. It ends in checkmate on d7 with the knight. The solver captures a pawn.Reveal line
Opponent's last move: Re8
Solution: Nxd7#
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White to move · rating 1177 · solved 2,871 times
· 2 solver moves to find. The solver captures 2 pieces (pawn, bishop).Reveal line
Opponent's last move: Be6
Solution: Nxe5+ → Kg8 → Qxe6+
Positions and move sequences come from real rated games (CC0 data). Engine evaluations, where shown, are stored evaluations of the position (CC0).