MESON Chess Problem Database
Problem Display
PID: 134628 (2K1k3/3ppp2/7B/8/1Q6/8/8/8 w - - 0 1)
Nikitin, Vladimir V
StrateGems, 2009
#2
3 + 4
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...d5
- 2.Qa4#
- 2.Qb5#
- 1...d6
- 2.Qa4#
- 2.Qb5#
- 1...e5
- 2.Qf8#
- 1...e6
- 2.Qf8#
- 1...d5
- Tries
- 1.Qa5?
- threat
- 2.Qd8#
- 1...f6
- 2.Qh5#
- 1...f5!
- threat
- 1.Qc5?
- 1...f6
- 2.Qh5#
- 1...d5
- 2.Qb5#
- 2.Qc6#
- 1...d6
- 2.Qb5#
- 2.Qc6#
- 1...e5
- 2.Qf8#
- 2.Qxe5#
- 1...e6
- 2.Qf8#
- 1...f5!
- 1...f6
- 1.Qg4?
- threat
- 2.Qxd7#
- 2.Qg8#
- 1...e5
- 2.Qxd7#
- 1...f5
- 2.Qh5#
- 2.Qg6#
- 2.Qg8#
- 1...f6
- 2.Qh5#
- 2.Qg6#
- 2.Qg8#
- 1...d5
- 2.Qd7#
- 2.Qa4#
- 2.Qg8#
- 1...d6
- 2.Qd7#
- 2.Qa4#
- 2.Qg8#
- 1...e6!
- threat
- 1.Qb5?
- threat
- 2.Qxd7#
- 1...f6
- 2.Qh5#
- 1...f5!
- threat
- 1.Qb6?
- threat
- 2.Qd8#
- 1...f5
- 2.Qg6#
- 1...f6!
- threat
- 1.Qa5?
- Keys
- 1.Qh4!
- 1...f5
- 2.Qh5#
- 1...f6
- 2.Qh5#
- 1...d5
- 2.Qa4#
- 1...d6
- 2.Qa4#
- 1...e5
- 2.Qd8#
- 1...e6
- 2.Qd8#
- 1...f5
- 1.Qh4!
Anticipated by 12438(1979)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- P(b);OGATE::QAR1(A)
- Tries
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- P(c);OGATEB::QAB(A)
- Refutation
- P(c);
- Try
- Q(A);
- Vars
- P(c);OGATEB::QAB(A)
- P(b);OGATE::QAR1(A)
- Refutation
- P(c);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- P(b);::QAB1(A),XP(a)
- Refutation
- P(b);
- Try
- Q(A);P_PINP(a)
- Threat
- QAB1(A),XP(a)
- Vars
- P(c);OGATEB::QAB(A)
- Refutation
- P(c);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- P(c);OGATEB::QAB(A)
- Refutation
- P(c);
- Try
- Actual
- Q(A);
- Vars
- P(c);OGATEB::QAB(A)
- P(a);OGATEB::QAB(A)
- P(b);OGATE::QAR1(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).