Real puzzles from rated games · median rating 1365 · solved 27,884,509 times
Difficulty 1200–1599
These are attacks on f2 / f7 puzzles rated 1200–1599, the Developing level on this site. They come from real rated games: 8,699 puzzles, median rating 1365, solved 27,884,509 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 developing level (23% of all 8,699).
40.8% need 1 solver move, 45.2% need 2 solver moves, 12.5% need 3 solver moves, 1.4% need 4 solver moves. Median rating: 1318 for the shortest solutions, 1456 for the longest.
48.4% open with a bishop move. The first move captures in 93.6% and gives check in 94.3%; 63.9% end in checkmate, 23.2% involve a sacrifice, 63.4% have White to move.
93.6%first move captures
94.3%first move gives check
63.9%end in checkmate
23.2%involve a sacrifice
How many moves does the solver need?
1 solver move
40.8% · median rating 1318
2 solver moves
45.2% · median rating 1384
3 solver moves
12.5% · median rating 1435
4 solver moves
1.4% · median rating 1456
Which piece plays the key move?
Key move by a bishop
48.4%
Key move by a queen
41.2%
Key move by a pawn
4.4%
Key move by a knight
3.8%
Key move by a rook
2.2%
What does the solver win?
Most valuable capture: pawn
63.2%
Most valuable capture: queen
20.5%
Most valuable capture: rook
7.1%
Most valuable capture: bishop
6%
Most valuable capture: knight
3.2%
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)
4.2%
Up to 2 pawns’ worth
64%
3–4 points (about a minor piece)
8.9%
5–8 points (a rook or more)
19.5%
9 or more points (a queen’s worth)
3.3%
How much is left on the board?
28 or more pieces on the board
42.4%
21–27 pieces
50.8%
13–20 pieces
6.4%
12 pieces or fewer
0.4%
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: f7 (90.5%), g6 (1.4%), h5 (1.1%), c7 (0.9%), c8 (0.6%).
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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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Black to move · rating 1266 · solved 3,022 times
· 3 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: Bxg7
Solution: Qc1+ → Qd1 → Bxf2+ → Kxf2 → Qxd1
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White to move · rating 1269 · solved 3,190 times
· Mate in 2. It ends in checkmate on f8 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: fxe3
Solution: Qxf7+ → Kd8 → Qf8#
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Black to move · rating 1285 · solved 3,736 times
· Mate in 1. It ends in checkmate on f2 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Nxc5
Solution: Qxf2#
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Black to move · rating 1289 · solved 2,765 times
· 3 solver moves to find. It gives up the queen (Qxe1+) and the bishop (Bxf2+) on the way. The solver captures 3 pieces (rook, pawn, queen).Reveal line
Opponent's last move: Nc3
Solution: Qxe1+ → Kxe1 → Bxf2+ → Kxf2 → Rxc4
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White to move · rating 1295 · solved 2,307 times
· 2 solver moves to find. It gives up the bishop (Bxf7+) on the way. The solver captures 2 pieces (pawn, queen).Reveal line
Opponent's last move: Nb4
Solution: Bxf7+ → Kxf7 → Qxd8
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White to move · rating 1335 · solved 3,593 times
· 2 solver moves to find. It gives up the knight (Nxd6+) on the way. The solver captures 2 pieces (pawn, pawn).Reveal line
Opponent's last move: Bg7
Solution: Nxd6+ → Qxd6 → Qxf7+
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White to move · rating 1338 · solved 3,215 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 1358 · solved 3,029 times
· 2 solver moves to find. The solver captures a queen.Reveal line
Opponent's last move: Rf1
Solution: Qh4+ → Qf2 → Bxf2+
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White to move · rating 1371 · solved 2,117 times
· Mate in 1. It ends in checkmate on f7 with the pawn. The solver captures a pawn.Reveal line
Opponent's last move: bxa2
Solution: exf7#
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Black to move · rating 1389 · solved 2,997 times
· 3 solver moves to find. The solver captures 2 pieces (pawn, queen).Reveal line
Opponent's last move: Nxg5
Solution: Qxf2+ → Kd1 → Ne3+ → Kc1 → Nxd5
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White to move · rating 1477 · solved 2,146 times
· 3 solver moves to find. The solver captures 2 pieces (pawn, queen).Reveal line
Opponent's last move: Ng4
Solution: Qxf7+ → Kd7 → Nc5+ → Kxc7 → Nxe4
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White to move · rating 1576 · solved 2,169 times
· 3 solver moves to find. It gives up the bishop (Bxf7+) on the way. The solver captures 2 pieces (pawn, queen).Reveal line
Opponent's last move: Qxd4
Solution: Bxf7+ → Kxf7 → Be5+ → Nf6 → Bxd4
Positions and move sequences come from real rated games (CC0 data). Engine evaluations, where shown, are stored evaluations of the position (CC0).