MESON Chess Problem Database
Problem Display
PID: 152710 (5K2/QP6/1p1N4/P2kpp1N/5p2/1P3b2/1PPpr3/1n6 w - - 0 1)
Harley, Brian
The Observer, 1932
(First published on Sun Apr 10 1932)
#3
9 + 9
| 15290 | Harley Scrapbook | 2014 |
| 15239 | Valois Notebooks | 2018 |
SOLUTION
- SOUND
- Tries
- 1.Sxf4+?
- 1...Kc6
- 2.Qxb6+
- 2...Kd7
- 3.b8S#
- 2...Kd7
- 2.b8S+
- 2...Kc5
- 3.Qxb6#
- 2...Kxd6
- 3.Qe7#
- 2...Kc5
- 2.Qxb6+
- 1...Kxd6
- 2.b8Q+
- 2...Kc5
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kc6
- 3.Qbxb6#
- 2...Kc5
- 2.b8Q+
- 1...exf4!
- 1...Kc6
- 1.Sf6+?
- 1...Kxd6
- 2.b8Q+
- 2...Kc5
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kc6
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Ke6
- 3.Qe7#
- 3.Qf7#
- 2...Kc5
- 2.b8B+
- 2...Kc5
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Ke6
- 3.Qe7#
- 3.Qf7#
- 2...Kc5
- 2.b8Q+
- 1...Ke6!
- 1...Kxd6
- 1.Qxb6?
- threat
- 2.Sf6+
- 2...Ke6
- 3.Sde4#
- 2...Ke6
- 2.Se4
- threat
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- threat
- 2.Se8
- threat
- 3.Shf6#
- 3.Sef6#
- 2...Ke4
- 3.Shf6#
- 3.Sef6#
- 2...e4
- 3.Qd6#
- threat
- 2.Sf6+
- 1...Ke6
- 2.Sg7+
- 2...Kd5
- 3.c4#
- 2...Kf6
- 3.Se4#
- 2...Kd7
- 3.b8S#
- 2...Kd5
- 2.Sc4+
- 2...Kd5
- 3.Sf6#
- 2...Kd7
- 3.Sf6#
- 3.Qd6#
- 2...Bc6
- 3.Qxc6#
- 2...Kd5
- 2.Se4+
- 2...Kd5
- 3.Sef6#
- 3.Shf6#
- 2...Kd7
- 3.Sc5#
- 3.Sef6#
- 3.Shf6#
- 3.Qd6#
- 2...Kd5
- 2.Sb5+
- 2...Kd5
- 3.Sf6#
- 2...Kd7
- 3.Sf6#
- 3.Qd6#
- 2...Bc6
- 3.Qxc6#
- 2...Kd5
- 2.Sf7+
- 2...Kd5
- 3.Sf6#
- 2...Kd7
- 3.Sf6#
- 3.Qd6#
- 2...Bc6
- 3.Qxc6#
- 2...Kd5
- 2.Sc8+
- 2...Kd5
- 3.Sf6#
- 2...Kd7
- 3.Sf6#
- 3.Qd6#
- 2...Bc6
- 3.Qxc6#
- 2...Kd5
- 2.Se8+
- 2...Kd5
- 3.Shf6#
- 3.Sef6#
- 2...Kd7
- 3.Shf6#
- 3.Sef6#
- 3.Qd6#
- 2...Bc6
- 3.Qxc6#
- 2...Kd5
- 2.Sg7+
- 1...e4
- 2.Sf6+
- 2...Ke5
- 3.Sc4#
- 3.Sf7#
- 2...Ke6
- 3.Sc4#
- 3.Sf7#
- 2...Ke5
- 2.Sc4
- threat
- 3.Sxf4#
- 3.Sf6#
- 3.Qd6#
- threat
- 2.Sf7
- threat
- 3.Sxf4#
- 3.Sf6#
- 3.Qd6#
- 3.c4#
- threat
- 2.Sf6+
- 1...d1Q
- 2.Se4
- threat
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- threat
- 2.Se8
- threat
- 3.Shf6#
- 3.Sef6#
- 2...Ke4
- 3.Shf6#
- 3.Sef6#
- 2...e4
- 3.Qd6#
- threat
- 2.Se4
- 1...d1R
- 2.Se4
- threat
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- threat
- 2.Se8
- threat
- 3.Shf6#
- 3.Sef6#
- 2...Ke4
- 3.Shf6#
- 3.Sef6#
- 2...e4
- 3.Qd6#
- threat
- 2.Se4
- 1...Rg2
- 2.Sf6+
- 2...Ke6
- 3.Sde4#
- 2...Ke6
- 2.Sf6+
- 1...Re3
- 2.Sf6+
- 2...Ke6
- 3.Sde4#
- 2...Ke6
- 2.Sf6+
- 1...Re4
- 2.Sf6+
- 2...Ke6
- 3.Sc4#
- 3.Sdxe4#
- 3.Sb5#
- 3.Sf7#
- 3.Sc8#
- 3.Sde8#
- 2...Ke6
- 2.Sc4
- threat
- 3.Sf6#
- 3.Qd6#
- threat
- 2.Sxe4
- threat
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- threat
- 2.Sb5
- threat
- 3.Sc7#
- 3.Sf6#
- 3.Qd6#
- threat
- 2.Sxf5
- threat
- 3.Se7#
- 3.Sf6#
- 3.Qd6#
- threat
- 2.Sf7
- threat
- 3.Sf6#
- 3.Qd6#
- threat
- 2.Sc8
- threat
- 3.Sf6#
- 3.Se7#
- 3.Qd6#
- threat
- 2.Se8
- threat
- 3.Shf6#
- 3.Sef6#
- 3.Sc7#
- 3.Qd6#
- threat
- 2.Sf6+
- 1...Bh1
- 2.Sf6+
- 2...Ke6
- 3.Sde4#
- 2...Ke6
- 2.Sf6+
- 1...Bg2
- 2.Sf6+
- 2...Ke6
- 3.Sde4#
- 2...Ke6
- 2.Sf6+
- 1...Be4
- 2.Ke7
- threat
- 3.Sf6#
- 3.c4#
- threat
- 2.Kf7
- threat
- 3.Sf6#
- 3.c4#
- threat
- 2.Sf6+
- 2...Ke6
- 3.Sdxe4#
- 2...Ke6
- 2.Sc4
- threat
- 3.Sf6#
- 3.Qd6#
- threat
- 2.Sb5
- threat
- 3.Sc7#
- 3.Sf6#
- 3.Qd6#
- 3.c4#
- threat
- 2.Sxf5
- threat
- 3.Se7#
- 3.Sf6#
- 3.Qd6#
- 3.c4#
- threat
- 2.Sf7
- threat
- 3.Sf6#
- 3.Qd6#
- 3.c4#
- threat
- 2.Sc8
- threat
- 3.Sf6#
- 3.Se7#
- 3.Qd6#
- 3.c4#
- threat
- 2.Se8
- threat
- 3.Shf6#
- 3.Sef6#
- 3.Sc7#
- 3.Qd6#
- 3.c4#
- threat
- 2.Ke7
- 1...Bg4
- 2.Sf6+
- 2...Ke6
- 3.Sc4#
- 3.Sde4#
- 3.Sb5#
- 3.Sf7#
- 3.Sc8#
- 3.Sde8#
- 2...Ke6
- 2.Sf6+
- 1...Sa3
- 2.Sf6+
- 2...Ke6
- 3.Sde4#
- 2...Ke6
- 2.Se4
- threat
- 3.Sc3#
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- threat
- 2.Sb5
- threat
- 3.Sc3#
- 3.Sf6#
- 2...Ke4
- 3.Sc3#
- 3.Sf6#
- 2...e4
- 3.Qd6#
- threat
- 2.Se8
- threat
- 3.Shf6#
- 3.Sef6#
- 2...Ke4
- 3.Shf6#
- 3.Sef6#
- 2...e4
- 3.Qd6#
- threat
- 2.Sf6+
- 1...Sc3
- 2.Sf6+
- 2...Ke6
- 3.Sde4#
- 2...Ke6
- 2.Se4
- threat
- 3.Sxc3#
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- 2...Sxe4
- 3.c4#
- threat
- 2.Sb5
- threat
- 3.Sxc3#
- 3.Sf6#
- 2...Ke4
- 3.Sxc3#
- 3.Sf6#
- 2...Se4
- 3.Sc7#
- 3.c4#
- 2...e4
- 3.Qd6#
- threat
- 2.Se8
- threat
- 3.Shf6#
- 3.Sef6#
- 2...Ke4
- 3.Shf6#
- 3.Sef6#
- 2...Se4
- 3.Sc7#
- 3.c4#
- 2...e4
- 3.Qd6#
- threat
- 2.Sf6+
- 1...Bxh5!
- threat
- 1.b8Q?
- threat
- 2.Sf6+
- 2...Kd4
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kc5
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kc6
- 3.Qaxb6#
- 3.Qbc7#
- 3.Qac7#
- 3.Qbxb6#
- 2...Ke6
- 3.Qe7#
- 3.Qf7#
- 2...Kd4
- 2.Qf7+
- 2...Kd4
- 3.Qxb6#
- 2...Kc5
- 3.Qc4#
- 3.Qxb6#
- 2...Kc6
- 3.Qbc7#
- 3.Qxb6#
- 2...Kd4
- 2.Qba8+
- 2...Kd4
- 3.Qxb6#
- 2...Kc5
- 3.Qxb6#
- 2...Kxd6
- 3.Qe7#
- 2...Ke6
- 3.Qe7#
- 2...Kd4
- 2.Sf6+
- 1...Kd4
- 2.Qbxb6+
- 2...Kd5
- 3.Qf7#
- 2...Kd5
- 2.Qbxb6+
- 1...Kc5
- 2.Sf6
- threat
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kb4
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kd4
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kc6
- 3.Qaxb6#
- 3.Qbc7#
- 3.Qac7#
- 3.Qbxb6#
- threat
- 2.Qbxb6+
- 2...Kd5
- 3.Qf7#
- 2...Kd5
- 2.Sf6
- 1...Kc6
- 2.Sf6
- threat
- 3.Qaxb6#
- 3.Qbc7#
- 3.Qac7#
- 3.Qbxb6#
- 2...Kc5
- 3.Qaxb6#
- 3.Qbxb6#
- threat
- 2.Qac7+
- 2...Kd5
- 3.Qc4#
- 2...Kd5
- 2.Qf7
- threat
- 3.Qbc7#
- 3.Qxb6#
- 2...Kc5
- 3.Qc4#
- 3.Qxb6#
- threat
- 2.Qbxb6+
- 2...Kd5
- 3.Qf7#
- 2...Kd5
- 2.Qba8+
- 2...Kc5
- 3.Qxb6#
- 2...Kxd6
- 3.Qe7#
- 2...Kc5
- 2.c4
- threat
- 3.Qbc7#
- 3.Qac7#
- 3.Qbxb6#
- 2...Kc5
- 3.Qaxb6#
- 3.Qbxb6#
- threat
- 2.Sf6
- 1...Bxh5
- 2.Qba8+
- 2...Kd4
- 3.Qxb6#
- 2...Kc5
- 3.Qxb6#
- 2...Kxd6
- 3.Qe7#
- 2...Ke6
- 3.Qe7#
- 2...Kd4
- 2.Qba8+
- 1...bxa5
- 2.Ke7
- threat
- 3.Qb5#
- 3.Qbb7#
- 3.Qba8#
- 2...Kc6
- 3.Qb5#
- 3.Qbb7#
- 3.Qba8#
- threat
- 2.Sf6+
- 2...Kc6
- 3.Qab6#
- 3.Qbc7#
- 3.Qac7#
- 3.Qbb6#
- 2...Ke6
- 3.Qe7#
- 3.Qf7#
- 2...Kc6
- 2.Qf7+
- 2...Kd4
- 3.Qba7#
- 3.Qb6#
- 2...Kc5
- 3.Qc4#
- 2...Kc6
- 3.Qbc7#
- 2...Kd4
- 2.Qb5+
- 2...Kxd6
- 3.Qbd7#
- 3.Qad7#
- 3.Qe7#
- 2...Ke6
- 3.Qad7#
- 3.Qe7#
- 2...Kxd6
- 2.Qba8+
- 2...Kxd6
- 3.Qe7#
- 2...Ke6
- 3.Qe7#
- 2...Kxd6
- 2.Qc8
- threat
- 3.Qac5#
- 2...Kxd6
- 3.Qac5#
- 3.Qcd7#
- 3.Qad7#
- threat
- 2.c4+
- 2...Kc6
- 3.Qbc7#
- 3.Qac7#
- 3.Qbb6#
- 2...Ke6
- 3.Qe7#
- 3.Qf7#
- 2...Kc6
- 2.Ke7
- 1...Re3
- 2.Sf6+
- 2...Kd4
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kc5
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kc6
- 3.Qaxb6#
- 3.Qbc7#
- 3.Qac7#
- 3.Qbxb6#
- 2...Ke6
- 3.Qe7#
- 3.Qf7#
- 2...Kd4
- 2.Qf7+
- 2...Kd4
- 3.Qc4#
- 3.Qxb6#
- 2...Kc5
- 3.Qc4#
- 3.Qxb6#
- 2...Kc6
- 3.Qbc7#
- 3.Qxb6#
- 2...Kd4
- 2.Qba8+
- 2...Kd4
- 3.Qxb6#
- 2...Kc5
- 3.Qxb6#
- 2...Kxd6
- 3.Qe7#
- 2...Ke6
- 3.Qe7#
- 2...Kd4
- 2.Sf6+
- 1...Re4
- 2.Sf6+
- 2...Kd4
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kc5
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kc6
- 3.Qaxb6#
- 3.Qbc7#
- 3.Qac7#
- 3.Qbxb6#
- 2...Ke6
- 3.Qe7#
- 3.Qf7#
- 2...Kd4
- 2.Qf7+
- 2...Kd4
- 3.Qxb6#
- 2...Kc5
- 3.Qxb6#
- 2...Kc6
- 3.Qbc7#
- 3.Qxb6#
- 2...Kd4
- 2.Qba8+
- 2...Kd4
- 3.Qxb6#
- 2...Kc5
- 3.Qxb6#
- 2...Kxd6
- 3.Qe7#
- 2...Ke6
- 3.Qe7#
- 2...Kd4
- 2.Sf6+
- 1...Sa3
- 2.Sf6+
- 2...Kd4
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kc5
- 3.Qaxb6#
- 3.Qbxb6#
- 2...Kc6
- 3.Qaxb6#
- 3.Qbc7#
- 3.Qac7#
- 3.Qbxb6#
- 2...Ke6
- 3.Qe7#
- 3.Qf7#
- 2...Kd4
- 2.Qf7+
- 2...Kd4
- 3.Qxb6#
- 2...Kc5
- 3.Qxb6#
- 2...Kc6
- 3.Qbc7#
- 3.Qxb6#
- 2...Kd4
- 2.Qba8+
- 2...Kd4
- 3.Qxb6#
- 2...Kc5
- 3.Qxb6#
- 2...Kxd6
- 3.Qe7#
- 2...Ke6
- 3.Qe7#
- 2...Kd4
- 2.Sf6+
- 1...b5
- 2.Ke7
- threat
- 3.Qxb5#
- 3.Qbb7#
- 3.Qba8#
- 2...Kc6
- 3.Qxb5#
- 3.Qbb7#
- 3.Qba8#
- threat
- 2.Sf6+
- 2...Kc6
- 3.Qab6#
- 3.Qbc7#
- 3.Qac7#
- 3.Qbb6#
- 2...Ke6
- 3.Qe7#
- 3.Qf7#
- 2...Kc6
- 2.Qxb5+
- 2...Kxd6
- 3.Qbd7#
- 3.Qad7#
- 3.Qe7#
- 2...Ke6
- 3.Qad7#
- 3.Qe7#
- 2...Kxd6
- 2.Qba8+
- 2...Kxd6
- 3.Qe7#
- 2...Ke6
- 3.Qe7#
- 2...Kxd6
- 2.Qc8
- threat
- 3.Qac5#
- 2...Kxd6
- 3.Qac5#
- 3.Qcd7#
- 3.Qad7#
- threat
- 2.Ke7
- 1...e4!
- threat
- 1.Sxf4+?
- Keys
- 1.Se4!
- threat
- 2.Shf6+
- 2...Kd4
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Ke6
- 3.Qxb6#
- 2...Kd4
- 2.Qxb6
- threat
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- threat
- 2.Shf6+
- 1...Kd4
- 2.Shf6
- threat
- 3.Qxb6#
- 2...Ke3
- 3.Qxb6#
- threat
- 2.Qxb6+
- 2...Kxe4
- 3.Sf6#
- 2...Kd5
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 2.Shf6
- 1...Kxe4
- 2.Sf6+
- 2...Ke3
- 3.Qxb6#
- 2...Kd4
- 3.Qxb6#
- 2...Ke3
- 2.Sf6+
- 1...Kc6
- 2.Qxb6+
- 2...Kd5
- 3.Sef6#
- 3.Shf6#
- 2...Kd7
- 3.Sc5#
- 3.Sef6#
- 3.Shf6#
- 3.Qd6#
- 2...Kd5
- 2.Qxb6+
- 1...Ke6
- 2.Qxb6+
- 2...Kd5
- 3.Sef6#
- 3.Shf6#
- 2...Kd7
- 3.Sc5#
- 3.Sef6#
- 3.Shf6#
- 3.Qd6#
- 2...Kd5
- 2.Qxb6+
- 1...Rxe4
- 2.Sf6+
- 2...Kd4
- 3.Qxb6#
- 2...Kc5
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Kd6
- 3.Qxb6#
- 2...Ke6
- 3.Qxb6#
- 2...Kd4
- 2.Sf6+
- 1...Bxe4
- 2.Qxb6
- threat
- 3.Sf6#
- 3.c4#
- threat
- 2.Qxb6
- 1...Bxh5
- 2.Sf6+
- 2...Kd4
- 3.Qxb6#
- 2...Kc5
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Kd6
- 3.Qxb6#
- 2...Ke6
- 3.Qxb6#
- 2...Kd4
- 2.Sf6+
- 1...fxe4
- 2.Qxb6
- threat
- 3.Sf6#
- 3.c4#
- threat
- 2.Qxb6
- 1...bxa5
- 2.Qc5+
- 2...Kxe4
- 3.Sf6#
- 2...Ke6
- 3.Qd6#
- 3.Qc6#
- 2...Kxe4
- 2.Qb6
- threat
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- threat
- 2.Qc5+
- 1...d1Q
- 2.Qxb6
- threat
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- threat
- 2.Qxb6
- 1...d1R
- 2.Qxb6
- threat
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- threat
- 2.Qxb6
- 1...Rg2
- 2.Shf6+
- 2...Kd4
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Ke6
- 3.Qxb6#
- 2...Kd4
- 2.Shf6+
- 1...Re3
- 2.Shf6+
- 2...Kd4
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Ke6
- 3.Qxb6#
- 2...Kd4
- 2.Shf6+
- 1...Bh1
- 2.Shf6+
- 2...Kd4
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Ke6
- 3.Qxb6#
- 2...Kd4
- 2.Shf6+
- 1...Bg2
- 2.Shf6+
- 2...Kd4
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Ke6
- 3.Qxb6#
- 2...Kd4
- 2.Shf6+
- 1...Bg4
- 2.Sef6+
- 2...Kd4
- 3.Qxb6#
- 2...Kc5
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Kd6
- 3.Qxb6#
- 2...Ke6
- 3.Qxb6#
- 2...Kd4
- 2.Shf6+
- 2...Kd4
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Ke6
- 3.Qxb6#
- 2...Kd4
- 2.Sef6+
- 1...Sa3
- 2.Shf6+
- 2...Kd4
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Ke6
- 3.Qxb6#
- 2...Kd4
- 2.Qxb6
- threat
- 3.Sc3#
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- threat
- 2.Shf6+
- 1...Sc3
- 2.Shf6+
- 2...Kd4
- 3.Qxb6#
- 2...Kc6
- 3.Qxb6#
- 2...Ke6
- 3.Qxb6#
- 2...Kd4
- 2.Qxb6
- threat
- 3.Sxc3#
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- 2...Sxe4
- 3.c4#
- threat
- 2.Shf6+
- 1...b5
- 2.Shf6+
- 2...Kc6
- 3.Qb6#
- 3.b8S#
- 2...Ke6
- 3.Qb6#
- 3.Qa6#
- 2...Kc6
- 2.Qc5+
- 2...Kxe4
- 3.Sf6#
- 2...Ke6
- 3.Qd6#
- 3.Qc6#
- 2...Kxe4
- 2.Qb6
- threat
- 3.Sef6#
- 3.Shf6#
- 2...Kxe4
- 3.Sf6#
- threat
- 2.Shf6+
- threat
- 1.Se4!
FEATURES
NOT CLASSIFIED
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).