MESON Chess Problem Database
Problem Display
PID: 24192 (8/p4N2/B5p1/3k1P2/5p2/7K/1pp4n/2b3Q1 w - - 0 1)
Challenger, Alfred Clement
The Observer, 1935
(First published on Sun Jul 21 1935)
#3
5 + 8
| 81 | Chess | 2007 |
| 15239 | Valois Notebooks | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Qc5
- threat
- 3.Sg5#
- 2...Kf3
- 3.Sg5#
- 2...Sf3
- 3.Sd6#
- 2...f3
- 3.Qe5#
- 2...g5
- 3.Sxg5#
- threat
- 2.Qc5
- 1...Kc6
- 2.Qd4
- threat
- 3.Qd6#
- 2...Kc7
- 3.Qd6#
- threat
- 2.Qd4
- 1...Ke4
- Tries
- 1.Qd4+?
- 1...Kc6
- 2.Qd6#
- 1...Kxd4!
- 1...Kc6
- 1.Qc5+?
- 1...Ke4
- 2.Sg5#
- 1...Kxc5!
- 1...Ke4
- 1.Qb6?
- threat
- 2.Qd8+
- 2...Ke4
- 3.Qd3#
- 2...Kc5
- 3.Qd6#
- 2...Kc6
- 3.Qd6#
- 2...Ke4
- 2.Qb4
- threat
- 3.Bb7#
- 3.Qc4#
- 2...Kc6
- 3.Qd6#
- threat
- 2.Qb5+
- 2...Kd4
- 3.Qe5#
- 2...Ke4
- 3.Qd3#
- 2...Kd4
- 2.Qd6+
- 2...Ke4
- 3.Qd3#
- 2...Ke4
- 2.Qe6+
- 2...Kd4
- 3.Qe5#
- 2...Kc5
- 3.Qd6#
- 2...Kd4
- 2.Qd8+
- 1...Ke4
- 2.Qc5
- threat
- 3.Sg5#
- 2...Kf3
- 3.Sg5#
- 2...Sf3
- 3.Sd6#
- 2...f3
- 3.Qe5#
- 2...g5
- 3.Sxg5#
- threat
- 2.Qe6+
- 2...Kf3
- 3.Qe2#
- 2...Kd4
- 3.Qe5#
- 2...Kf3
- 2.Qc5
- 1...gxf5
- 2.Qd8+
- 2...Ke4
- 3.Qd3#
- 2...Kc5
- 3.Qd6#
- 2...Kc6
- 3.Qd6#
- 2...Ke6
- 3.Bc4#
- 2...Ke4
- 2.Qd6+
- 2...Ke4
- 3.Qd3#
- 2...Ke4
- 2.Qd8+
- 1...b1Q
- 2.Qd8+
- 2...Ke4
- 3.Qd3#
- 2...Kc5
- 3.Qd6#
- 2...Kc6
- 3.Qd6#
- 2...Ke4
- 2.Qd6+
- 2...Ke4
- 3.Qd3#
- 2...Ke4
- 2.Qe6+
- 2...Kd4
- 3.Qe5#
- 2...Kc5
- 3.Qd6#
- 2...Kd4
- 2.Qd8+
- 1...b1R
- 2.Qd8+
- 2...Ke4
- 3.Qd3#
- 2...Kc5
- 3.Qd6#
- 2...Kc6
- 3.Qd6#
- 2...Ke4
- 2.Qd6+
- 2...Ke4
- 3.Qd3#
- 2...Ke4
- 2.Qe6+
- 2...Kd4
- 3.Qe5#
- 2...Kc5
- 3.Qd6#
- 2...Kd4
- 2.Qd8+
- 1...Bd2
- 2.Qd8+
- 2...Ke4
- 3.Qd3#
- 2...Kc5
- 3.Qd6#
- 2...Kc6
- 3.Qd6#
- 2...Ke4
- 2.Qb5+
- 2...Kd4
- 3.Qe5#
- 2...Ke4
- 3.Qd3#
- 2...Kd4
- 2.Qd6+
- 2...Ke4
- 3.Qd3#
- 2...Ke4
- 2.Qe6+
- 2...Kd4
- 3.Qe5#
- 2...Kc5
- 3.Qd6#
- 2...Kd4
- 2.Qd8+
- 1...Be3
- 2.Qe6+
- 2...Kd4
- 3.Qc4#
- 3.Qe5#
- 2...Kc5
- 3.Qd6#
- 2...Kd4
- 2.Qe6+
- 1...Sf3
- 2.Qd8+
- 2...Ke4
- 3.Qd3#
- 2...Kc5
- 3.Qd6#
- 2...Kc6
- 3.Qd6#
- 2...Ke4
- 2.Qd6+
- 2...Ke4
- 3.Qd3#
- 2...Ke4
- 2.Qd8+
- 1...Sg4
- 2.Qd8+
- 2...Ke4
- 3.Qd3#
- 2...Kc5
- 3.Qd6#
- 2...Kc6
- 3.Qd6#
- 2...Ke4
- 2.Qd6+
- 2...Ke4
- 3.Qd3#
- 2...Ke4
- 2.Qd8+
- 1...f3
- 2.Qc7
- threat
- 3.Qc4#
- 2...Kd4
- 3.Qe5#
- 2...Ke4
- 3.Qe5#
- threat
- 2.Qb4
- threat
- 3.Bb7#
- 3.Qc4#
- 2...Kc6
- 3.Qd6#
- threat
- 2.Qb5+
- 2...Kd4
- 3.Qe5#
- 2...Ke4
- 3.Qe5#
- 2...Kd4
- 2.Qd6+
- 2...Ke4
- 3.Qe5#
- 2...Ke4
- 2.Qe6+
- 2...Kd4
- 3.Qe5#
- 2...Kc5
- 3.Qd6#
- 2...Kd4
- 2.Qc7
- 1...g5
- 2.Qd8+
- 2...Ke4
- 3.Qd3#
- 2...Kc5
- 3.Qd6#
- 2...Kc6
- 3.Qd6#
- 2...Ke4
- 2.Qb5+
- 2...Kd4
- 3.Qe5#
- 2...Ke4
- 3.Qd3#
- 2...Kd4
- 2.Qd6+
- 2...Ke4
- 3.Qd3#
- 2...Ke4
- 2.Qe6+
- 2...Kd4
- 3.Qe5#
- 2...Kc5
- 3.Qd6#
- 2...Kd4
- 2.Qd8+
- 1...axb6!
- threat
- 1.Qf1?
- threat
- 2.Qc4#
- 1...Kd4
- 2.Qd3+
- 2...Kc5
- 3.Qd6#
- 2...Kc5
- 2.Qd3+
- 1...Kc5
- 2.Qb5+
- 2...Kd4
- 3.Qe5#
- 2...Kd4
- 2.Qb5+
- 1...Kc6
- 2.Qb5+
- 2...Kc7
- 3.Qb7#
- 2...Kc7
- 2.Qb5+
- 1...Sxf1!
- threat
- 1.Qxg6?
- threat
- 2.Qd6+
- 2...Ke4
- 3.Qd3#
- 2...Ke4
- 2.Qe6+
- 2...Kd4
- 3.Qe5#
- 2...Kc5
- 3.Qd6#
- 2...Kd4
- 2.Qd6+
- 1...Ke4
- 2.Qe6+
- 2...Kf3
- 3.Qe2#
- 2...Kd4
- 3.Qe5#
- 2...Kf3
- 2.Qe6+
- 1...Be3
- 2.Qe6+
- 2...Kd4
- 3.Qc4#
- 3.Qe5#
- 2...Kc5
- 3.Qd6#
- 2...Kd4
- 2.Qe6+
- 1...Sf3
- 2.Qd6+
- 2...Ke4
- 3.Qd3#
- 2...Ke4
- 2.Qd6+
- 1...Sg4
- 2.Qd6+
- 2...Ke4
- 3.Qd3#
- 2...Ke4
- 2.Qd6+
- 1...f3
- 2.Qd6+
- 2...Ke4
- 3.Qe5#
- 2...Ke4
- 2.Qe6+
- 2...Kd4
- 3.Qe5#
- 2...Kc5
- 3.Qd6#
- 2...Kd4
- 2.Qd6+
- 1...Kd4!
- threat
- 1.Qd4+?
- Keys
- 1.Qxa7!
- threat
- 2.Qd7+
- 2...Ke4
- 3.Qd3#
- 2...Kc5
- 3.Qd6#
- 2...Ke4
- 2.Qd7+
- 1...Ke4
- 2.Qc5
- threat
- 3.Sg5#
- 2...Kf3
- 3.Sg5#
- 2...Sf3
- 3.Sd6#
- 2...f3
- 3.Qe5#
- 2...g5
- 3.Sxg5#
- threat
- 2.Qc5
- 1...Kc6
- 2.Qd4
- threat
- 3.Qd6#
- 2...Kc7
- 3.Qd6#
- threat
- 2.Qd4
- 1...Be3
- 2.Qd7+
- 2...Ke4
- 3.Bb7#
- 2...Kc5
- 3.Qd6#
- 2...Ke4
- 2.Qd7+
- 1...f3
- 2.Qc7
- threat
- 3.Qc4#
- 2...Kd4
- 3.Qe5#
- 2...Ke4
- 3.Qe5#
- threat
- 2.Qc7
- threat
- 1.Qxa7!
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