Real puzzles from rated games · median rating 1800 · solved 151,459,388 times
Difficulty 1600–1999
These are exposed king puzzles rated 1600–1999, the Challenging level on this site. They come from real rated games: 53,121 puzzles, median rating 1800, solved 151,459,388 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 exposed king solution looks like
Sample: 2,000 exposed king puzzles at challenging level (3.8% of all 53,121).
77.6% need 3 solver moves, 18.7% need 4 solver moves, 3.6% need 5 or more solver moves. Median rating: 1787 for the shortest solutions, 1858 for the longest.
33.8% open with a queen move. The first move captures in 34.5% and gives check in 70.3%; 14.7% end in checkmate, 34.8% involve a sacrifice, 52.6% have White to move.
34.5%first move captures
70.3%first move gives check
14.7%end in checkmate
34.8%involve a sacrifice
How many moves does the solver need?
3 solver moves
77.6% · median rating 1787
4 solver moves
18.7% · median rating 1820
5+ solver moves
3.6% · median rating 1858
Which piece plays the key move?
Key move by a queen
33.8%
Key move by a rook
32.6%
Key move by a bishop
11.2%
Key move by a pawn
9.8%
Key move by a knight
8.2%
Key move by the king
4.2%
What does the solver win?
Most valuable capture: queen
36.3%
Most valuable capture: rook
31.1%
Captures nothing along the line
12%
Most valuable capture: bishop
8.4%
Most valuable capture: pawn
6.4%
Most valuable capture: knight
5.8%
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)
23.2%
Up to 2 pawns’ worth
10.8%
3–4 points (about a minor piece)
26.6%
5–8 points (a rook or more)
30.2%
9 or more points (a queen’s worth)
9.2%
How much is left on the board?
28 or more pieces on the board
1.6%
21–27 pieces
22.4%
13–20 pieces
57.8%
12 pieces or fewer
18.4%
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: g6 (6%), e6 (5%), f6 (4.5%), h8 (4.5%), g7 (3.8%).
1.7
1.3
1.8
1.7
2.7
2.4
2.2
4.5
8
1
1.5
2
2.7
2.6
3.4
3.8
3.5
7
1.1
1.5
2.1
2.4
5
4.5
6
3.7
6
1.3
1.3
2.6
2.9
3.5
2.8
3.5
5
1.5
1
1.5
1.2
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 exposed king puzzles, from each difficulty level. Play each one on the board, then open the answer for the full line.
♜
♛
♚
♝
♞
♜
♟
♟
♟
♟
♟
♝
♞
♘
♙
♗
♟
♙
♘
♙
♙
♙
♙
♙
♖
♗
♕
♔
♖
Black to move · rating 1611 · solved 1,949 times
· 3 solver moves to find. The solver captures 2 pieces (knight, bishop).Reveal line
Opponent's last move: Bxc4
Solution: Bxb5 → Bxb5 → Qa5+ → c3 → Qxb5
♝
♕
♟
♚
♜
♟
♟
♟
♜
♙
♙
♙
♙
♗
♙
♔
Black to move · rating 1612 · solved 3,195 times
· 3 solver moves to find. It gives up the rook (Rg5+) on the way. The solver captures a queen.Reveal line
Opponent's last move: Qg8
Solution: Rh5+ → Kg2 → Rg5+ → Qxg5 → fxg5
♙
♙
♝
♚
♟
♟
♔
♟
♖
Black to move · rating 1613 · solved 1,920 times
· 4 solver moves to find. The solver captures a rook.Reveal line
White to move · rating 1625 · solved 2,914 times
· Mate in 4. It ends in checkmate on f7 with the queen. It gives up the rook (Rxf7+) on the way. The solver captures 2 pieces (pawn, knight).Reveal line
Black to move · rating 1626 · solved 3,044 times
· Mate in 3. It ends in checkmate on h1 with the rook. It gives up the rook (Re1+) on the way. The solver captures a bishop.Reveal line
Opponent's last move: Rd3
Solution: Re1+ → Bxe1 → Rxe1+ → Kh2 → Rh1#
♚
♜
♝
♟
♟
♜
♕
♟
♟
♘
♛
♙
♙
♙
♙
♙
♖
♔
White to move · rating 1631 · solved 2,775 times
· Mate in 3. It ends in checkmate on g8 with the queen. It gives up the rook (Rf8+) on the way.Reveal line
Opponent's last move: Re6
Solution: Nh6+ → Kh8 → Rf8+ → Bxf8 → Qg8#
♙
♚
♙
♜
♖
♔
Black to move · rating 1634 · solved 1,835 times
· 3 solver moves to find. The solver captures a rook.Reveal line
Opponent's last move: Rd1+
Solution: Ke3 → Kf1 → Rh1+ → Kg2 → Rxd1
♜
♞
♝
♚
♝
♟
♟
♟
♟
♗
♞
♘
♟
♘
♙
♕
♗
♙
♙
♛
♙
♙
♔
White to move · rating 1635 · solved 2,038 times
· Mate in 3. It ends in checkmate on d6 with the queen. The solver captures a pawn.Reveal line
Opponent's last move: Kd8
Solution: Nf7+ → Ke8 → Nc7+ → Ke7 → Qxd6#
♜
♜
♝
♚
♟
♝
♞
♟
♞
♟
♛
♟
♘
♗
♙
♙
♙
♕
♙
♙
♙
♖
♖
♔
White to move · rating 1658 · solved 3,447 times
· Mate in 3. It ends in checkmate on g6 with the knight.Reveal line
Opponent's last move: gxh6
Solution: Qg6+ → Ng7 → Qf7+ → Kh8 → Ng6#
♚
♔
♟
♕
♟
♙
♛
♙
♗
♜
White to move · rating 1659 · solved 1,789 times
· 3 solver moves to find. The solver captures 2 pieces (queen, rook).Reveal line
Opponent's last move: Rc3
Solution: Be5 → Qf8+ → Qxf8+ → Kxf8 → Bxc3
♖
♘
♟
♙
♝
♙
♚
♜
♔
Black to move · rating 1682 · solved 2,383 times
· 3 solver moves to find. The solver captures a rook.Reveal line
Opponent's last move: Nf6
Solution: Rd2+ → Kc1 → Rd6+ → Kc2 → Rxa6
♚
♛
♜
♜
♕
♟
♟
♟
♟
♙
♟
♖
♙
♙
♙
♔
♖
White to move · rating 1754 · solved 2,236 times
· 4 solver moves to find. It gives up the queen (Qxe7+) on the way. The solver captures 2 pieces (rook, queen).Reveal line