Real puzzles from rated games · median rating 888 · solved 17,285,148 times
Difficulty 600–1199
These are attacks on f2 / f7 puzzles rated 600–1199, the Foundation level on this site. They come from real rated games: 27,224 puzzles, median rating 888, solved 17,285,148 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 attacks on f2 / f7 solution looks like
Sample: 2,000 attacks on f2 / f7 puzzles at foundation level (7.3% of all 27,224).
85.4% need 1 solver move, 12.9% need 2 solver moves, 1.6% need 3 solver moves. Median rating: 847 for the shortest solutions, 1123 for the longest.
79.2% open with a queen move. The first move captures in 98.8% and gives check in 99.8%; 94.8% end in checkmate, 3.2% involve a sacrifice, 67% have White to move.
98.8%first move captures
99.8%first move gives check
94.8%end in checkmate
3.2%involve a sacrifice
How many moves does the solver need?
1 solver move
85.4% · median rating 847
2 solver moves
12.9% · median rating 1040
3 solver moves
1.6% · median rating 1123
Which piece plays the key move?
Key move by a queen
79.2%
Key move by a bishop
19.2%
Key move by a pawn
1%
What does the solver win?
Most valuable capture: pawn
90.4%
Most valuable capture: queen
3.2%
Most valuable capture: bishop
2.7%
Most valuable capture: rook
1.9%
Most valuable capture: knight
1.9%
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)
0.4%
Up to 2 pawns’ worth
90.8%
3–4 points (about a minor piece)
4.4%
5–8 points (a rook or more)
3.2%
9 or more points (a queen’s worth)
1.1%
How much is left on the board?
28 or more pieces on the board
53.4%
21–27 pieces
43.9%
13–20 pieces
2.4%
12 pieces or fewer
0.2%
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 (98.7%), g6 (0.3%), h5 (0.2%), e5 (0.2%), f6 (0.2%).
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Counted from the same 2,000-puzzle sample. Squares under 1% are left blank.
Study positions
The most-solved attacks on f2 / f7 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 705 · solved 1,904 times
· Mate in 1. It ends in checkmate on f7 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Bg7
Solution: Qxf7#
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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 909 · solved 1,949 times
· Mate in 1. It ends in checkmate on f7 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Nxf2
Solution: Qxf7#
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Black to move · rating 949 · solved 2,387 times
· Mate in 1. It ends in checkmate on f2 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Bxg7
Solution: Qxf2#
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White to move · rating 1059 · solved 1,917 times
· Mate in 1. It ends in checkmate on f7 with the bishop. The solver captures a pawn.Reveal line
Opponent's last move: Bxd1
Solution: Bxf7#
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Black to move · rating 1073 · solved 1,768 times
· Mate in 1. It ends in checkmate on f2 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: c3
Solution: Qxf2#
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White to move · rating 1144 · solved 1,777 times
· Mate in 1. It ends in checkmate on f7 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Rb8
Solution: Qxf7#
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White to move · rating 1154 · solved 2,277 times
· Mate in 2. It ends in checkmate on e6 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Bxf3
Solution: Bxf7+ → Kd7 → Qe6#
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Black to move · rating 1166 · solved 1,909 times
· 2 solver moves to find. It gives up the bishop (Bxf2+) on the way. The solver captures 2 pieces (pawn, queen).Reveal line
Opponent's last move: Qg3
Solution: Bxf2+ → Qxf2 → Rxf2
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White to move · rating 1167 · solved 2,004 times
· Mate in 1. It ends in checkmate on f7 with the bishop. The solver captures a pawn.Reveal line
Opponent's last move: Qxg2
Solution: Bxf7#
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White to move · rating 1174 · solved 1,852 times
· Mate in 1. It ends in checkmate on f7 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Bxf6
Solution: Qxf7#
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White to move · rating 1199 · solved 2,103 times
· 2 solver moves to find. It gives up the bishop (Bxf7+) on the way. The solver captures 2 pieces (pawn, bishop).Reveal line
Opponent's last move: Nh5
Solution: Bxf7+ → Bxf7 → Qxf7+
Positions and move sequences come from real rated games (CC0 data). Engine evaluations, where shown, are stored evaluations of the position (CC0).