MESON Chess Problem Database
Problem Display
PID: 88754 (8/p2K2p1/P1ppp1P1/3k4/R1NpN3/6P1/7Q/1B6 w - - 0 1)
Lincoln, Robert A
The Problemist, 1989
#2
9 + 7
| 6490 | yacpdb | 2009 |
| 5454 | Near Snap | 2011 |
SOLUTION
- SOUND
- Tries
- 1.Se3+?
- 1...Ke5
- 2.Qh5#
- 2.g4#
- 1...dxe3!
- 1...Ke5
- 1.Sb6+?
- 1...Ke5
- 2.Qh5#
- 2.g4#
- 1...axb6!
- 1...Ke5
- 1.Qb2?
- 1...d3
- 2.Se3#
- 1...c5
- 2.Qb7#
- 1...e5!
- 1...d3
- 1.Qf2?
- 1...d3
- 2.Sc3#
- 1...e5
- 2.Qf7#
- 1...c5!
- 1...d3
- 1.Qh3?
- threat
- 2.Qxe6#
- 1...e5
- 2.Qe6#
- 1...d3!
- threat
- 1.Qh8?
- 1...c5
- 2.Qa8#
- 1...e5
- 2.Qg8#
- 1...d3!
- 1...c5
- 1.g4?
- threat
- 2.Qxd6#
- 1...d3
- 2.Se3#
- 1...e5!
- threat
- 1.Se3+?
- Keys
- 1.Qd2!
- 1...d3
- 2.Qxd3#
- 1...c5
- 2.Sc3#
- 1...e5
- 2.Se3#
- 1...d3
- 1.Qd2!
Anticipated by 107789(1967)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(E);CHECK
- Refutation
- P(a);XS(E)
- Try
- S(E);CHECK
- Refutation
- P(f);XS(E)
- Try
- Q(B);
- Vars
- P(a);N_GUARD::S(E)
- P(c);OGATEB::QAB(B)
- Refutation
- P(e);
- Try
- Q(B);
- Vars
- P(a);N_GUARD::S(F)
- P(e);OGATEB::QAB(B)
- Refutation
- P(c);
- Try
- Q(B);
- Threat
- QAB1(B),XP(e)
- Vars
- P(e);::QAB1(B)
- Refutation
- P(a);
- Try
- Q(B);
- Vars
- P(c);OGATEB::QAB(B)
- P(e);OGATEB::QAB(B)
- Refutation
- P(a);
- Try
- P(C);
- Threat
- QAR1(B),XP(d)
- Vars
- P(a);N_GUARD::S(E)
- Refutation
- P(e);
- Try
- Actual
- Q(B);P_PINP(a)
- Vars
- P(a);OGATEB::QAR2(B),XP(a)
- P(c);SBLOCK::S(F)
- P(e);SBLOCK::S(E)
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).