MESON Chess Problem Database
Problem Display
PID: 87570 (8/8/8/8/3p4/8/1KpkpP2/2Nb2Q1 w - - 0 1)
Keeney, Palmer Gunkel
American Chess Problemist, 1950
#2
4 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...e1S
- 2.Qg5#
- 1...e1B
- 2.Qg5#
- 1...d3
- 2.Sb3#
- 1...e1S
- Tries
- 1.Qg4?
- 1...e1Q
- 2.Qxd4#
- 1...e1S
- 2.Qf4#
- 2.Qg5#
- 1...e1B
- 2.Qxd4#
- 2.Qf4#
- 2.Qg5#
- 1...e1R
- 2.Qxd4#
- 1...d3
- 2.Qb4#
- 1...Ke1!
- 1...e1Q
- 1.Qg7?
- 1...e1Q
- 2.Qxd4#
- 1...e1S
- 2.Qh6#
- 2.Qg5#
- 1...e1B
- 2.Qxd4#
- 2.Qh6#
- 2.Qg5#
- 1...e1R
- 2.Qxd4#
- 1...d3
- 2.Qc3#
- 1...Ke1!
- 1...e1Q
- 1.f4?
- 1...e1Q
- 2.Qxd4#
- 1...e1B
- 2.Qxd4#
- 1...e1R
- 2.Qxd4#
- 1...d3
- 2.Sb3#
- 1...e1S!
- 1...e1Q
- 1.Qg4?
- Keys
- 1.f3!
- 1...e1Q
- 2.Qxd4#
- 1...e1S
- 2.Qg5#
- 1...e1B
- 2.Qxd4#
- 2.Qg5#
- 1...e1R
- 2.Qxd4#
- 1...d3
- 2.Sb3#
- 1...e1Q
- 1.f3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- P(d);SBLOCK::QAB(B)
- P(e);SBLOCK::S(A)
- Tries
- Try
- Q(B);
- Vars
- P(d);SBLOCK::QAR2(B),XP(e)
- P(e);OGATE::QAB(B)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(B);
- Vars
- P(d);SBLOCK::QAR2(B),XP(e)
- P(e);OGATE::QAB1(B)
- Refutation
- K(c);S_FLIGHT
- Try
- P(D);
- Vars
- P(d);SBLOCK::QAR2(B),XP(e)
- P(e);SBLOCK::S(A)
- Refutation
- P(d);
- Try
- Actual
- P(D);
- Vars
- P(d);SBLOCK::QAR2(B),XP(e)
- P(d);SBLOCK::QAB(B)
- P(e);SBLOCK::S(A)
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).