MESON Chess Problem Database
Problem Display
PID: 89064 (8/1B6/8/4k2p/1P5B/p7/P4n2/1QK5 w - - 0 1)
Postma, Bernardus
American Chess Problemist, 1950
#3
6 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Ke6
- 2.Qg6+
- 2...Ke5
- 3.Qf6#
- 2...Kd7
- 3.Qc6#
- 2...Ke5
- 2.Qg6+
- 1...Sd1
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qe4+
- 1...Sh1
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qe4+
- 1...Sd3+
- 2.Qxd3
- 2...Kf4
- 3.Qe4#
- 2...Ke6
- 3.Qd5#
- 2...Kf4
- 2.Qxd3
- 1...Sh3
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qe4+
- 1...Se4
- 2.Qxe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qxe4+
- 1...Sg4
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qe4+
- 1...Ke6
- Tries
- 1.Kd2?
- 1...Se4+
- 2.Qxe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qxe4+
- 1...Kd4
- 2.Qf5
- threat
- 3.Qc5#
- 3.Qd5#
- 2...Se4+
- 3.Qxe4#
- 2...Kc4
- 3.Qc5#
- threat
- 2.Qf5
- 1...Kf4
- 2.Qg6
- threat
- 3.Bg3#
- 3.Qg5#
- 2...Se4+
- 3.Qxe4#
- 2...Ke5
- 3.Qf6#
- threat
- 2.Qg6
- 1...Ke6
- 2.Qg6+
- 2...Ke5
- 3.Qf6#
- 2...Kd7
- 3.Qc6#
- 2...Ke5
- 2.Qg6+
- 1...Sd3
- 2.Qxd3
- 2...Kf4
- 3.Qe4#
- 2...Ke6
- 3.Qd5#
- 2...Kf4
- 2.Qxd3
- 1...Sd1
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qg6
- threat
- 3.Qf6#
- 2...Kd4
- 3.Qe4#
- 2...Kf4
- 3.Bg3#
- 3.Qe4#
- 3.Qg5#
- threat
- 2.Qe4+
- 1...Sh1
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qg6
- threat
- 3.Qf6#
- 2...Kd4
- 3.Qe4#
- 2...Kf4
- 3.Qe4#
- 3.Qg5#
- threat
- 2.Qe1+
- 2...Kd4
- 3.Qe4#
- 2...Kf4
- 3.Qe4#
- 2...Kf5
- 3.Qe4#
- 2...Kd6
- 3.Qe7#
- 2...Kd4
- 2.Qe4+
- 1...Sh3
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qe1+
- 2...Kd4
- 3.Qe4#
- 2...Kf4
- 3.Qe4#
- 2...Kf5
- 3.Qe4#
- 2...Kd6
- 3.Qe7#
- 2...Kd4
- 2.Qe4+
- 1...Sg4
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qg6
- 2...Kd4
- 3.Qe4#
- 2...Kf4
- 3.Qe4#
- 3.Qg5#
- 2...Sf6
- 3.Qxf6#
- 2...Sf2
- 3.Qf6#
- 2...Sh2
- 3.Qf6#
- 2...Se3
- 3.Qf6#
- 2...Sh6
- 3.Qf6#
- 2...Kd4
- 2.Qe4+
- 1...Kd6!
- 1...Se4+
- 1.Qd3?
- threat
- 2.Qd5+
- 2...Kf4
- 3.Qg5#
- 2...Kf4
- 2.Qd5+
- 1...Kf4
- 2.Qf3+
- 2...Ke5
- 3.Qf6#
- 2...Ke5
- 2.Qf3+
- 1...Se4
- 2.Qxe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qd5+
- 2...Kf4
- 3.Qxe4#
- 2...Kf4
- 2.Qxe4+
- 1...Sd1
- 2.Kxd1
- 2...Kf4
- 3.Qe4#
- 2...Ke6
- 3.Qd5#
- 2...Kf4
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qd5+
- 2...Kf4
- 3.Qe4#
- 3.Qg5#
- 2...Kf4
- 2.Kxd1
- 1...Sh1
- 2.Bg5
- threat
- 3.Qd5#
- 2...Ke6
- 3.Qd5#
- threat
- 2.Bxh1
- 2...Kf4
- 3.Qe4#
- 2...Ke6
- 3.Qd5#
- 2...Kf4
- 2.Qe2+
- 2...Kd4
- 3.Bf6#
- 2...Kf4
- 3.Qe4#
- 2...Kf5
- 3.Qe4#
- 2...Kd6
- 3.Qe7#
- 2...Kd4
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qe3+
- 2...Kf5
- 3.Qe4#
- 2...Kd6
- 3.Qe7#
- 2...Kf5
- 2.Qd5+
- 2...Kf4
- 3.Qe4#
- 3.Qg5#
- 2...Kf4
- 2.Bg5
- 1...Sh3
- 2.Qe2+
- 2...Kd4
- 3.Bf6#
- 2...Kf4
- 3.Qe4#
- 2...Kf5
- 3.Qe4#
- 2...Kd6
- 3.Qe7#
- 2...Kd4
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qe3+
- 2...Kf5
- 3.Qe4#
- 2...Kd6
- 3.Qe7#
- 2...Kf5
- 2.Qd5+
- 2...Kf4
- 3.Qe4#
- 2...Kf4
- 2.Qe2+
- 1...Sg4
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qd5+
- 2...Kf4
- 3.Qe4#
- 3.Qg5#
- 2...Kf4
- 2.Qe4+
- 1...Sxd3+!
- threat
- 1.Qe4+?
- 1...Kd6
- 2.Qe7#
- 1...Sxe4!
- 1...Kd6
- 1.Qf5+?
- 1...Kd4
- 2.Kc2
- threat
- 3.Qc5#
- 2...Ke3
- 3.Qxf2#
- 2...Kc4
- 3.Qc5#
- 2...Sd3
- 3.Qe4#
- 2...Se4
- 3.Qxe4#
- threat
- 2.Kd2
- threat
- 3.Qc5#
- 3.Qd5#
- 2...Se4+
- 3.Qxe4#
- 2...Kc4
- 3.Qc5#
- threat
- 2.Kc2
- 1...Kd6
- 2.Qc5+
- 2...Ke6
- 3.Qd5#
- 2...Kd7
- 3.Qe7#
- 3.Qc6#
- 2...Ke6
- 2.Qc5+
- 1...Kxf5!
- 1...Kd4
- 1.Qg6?
- threat
- 2.Qf6#
- 1...Sd3+
- 2.Kd2
- threat
- 3.Qf6#
- 2...Kd4
- 3.Qe4#
- 2...Kf4
- 3.Bg3#
- 3.Qe4#
- 3.Qg5#
- threat
- 2.Qxd3
- 2...Kf4
- 3.Qe4#
- 2...Ke6
- 3.Qd5#
- 2...Kf4
- 2.Kd2
- 1...Se4
- 2.Qxe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qxe4+
- 1...Sg4
- 2.Kd2
- 2...Kd4
- 3.Qe4#
- 2...Kf4
- 3.Qe4#
- 3.Qg5#
- 2...Sf6
- 3.Qxf6#
- 2...Sf2
- 3.Qf6#
- 2...Sh2
- 3.Qf6#
- 2...Se3
- 3.Qf6#
- 2...Sh6
- 3.Qf6#
- 2...Kd4
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Kd2
- 1...Kd4!
- threat
- 1.Kd2?
- Keys
- 1.Qc2!
- threat
- 2.Qc5+
- 2...Kf4
- 3.Qg5#
- 2...Ke6
- 3.Qd5#
- 2...Kf4
- 2.Qc5+
- 1...Sd3+
- 2.Qxd3
- 2...Kf4
- 3.Qe4#
- 2...Ke6
- 3.Qd5#
- 2...Kf4
- 2.Qxd3
- 1...Kd4
- 2.Bf6+
- 2...Ke3
- 3.Qd2#
- 2...Ke3
- 2.Bf6+
- 1...Kf4
- 2.Qxf2+
- 2...Kg4
- 3.Bc8#
- 2...Ke5
- 3.Qf6#
- 2...Kg4
- 2.Qxf2+
- 1...Kd6
- 2.Qc5+
- 2...Ke6
- 3.Qd5#
- 2...Kd7
- 3.Qe7#
- 3.Qc6#
- 2...Ke6
- 2.Qc6+
- 2...Ke5
- 3.Qf6#
- 2...Ke5
- 2.Qc5+
- 1...Ke6
- 2.Qg6+
- 2...Ke5
- 3.Qf6#
- 2...Kd7
- 3.Qc6#
- 2...Ke5
- 2.Qg6+
- 1...Se4
- 2.Qxe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qxe4+
- 1...Sh3
- 2.Qe4+
- 2...Kd6
- 3.Qe7#
- 2...Kd6
- 2.Qe2+
- 2...Kd4
- 3.Bf6#
- 2...Kf4
- 3.Qe4#
- 2...Kf5
- 3.Qe4#
- 2...Kd6
- 3.Qe7#
- 2...Kd4
- 2.Qe4+
- threat
- 1.Qc2!
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