MESON Chess Problem Database
Problem Display
PID: 59497 (1Q6/8/8/1Np5/B3p3/3k4/8/4K3 w - - 0 1)
Lincoln, Robert A
The Problemist Supplement, 2005
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Ke3
- 2.Qg3#
- 1...Ke3
- Tries
- 1.Qh2?
- threat
- 2.Qe2#
- 1...Ke3
- 2.Qg3#
- 1...e3
- 2.Qc2#
- 1...Kc4!
- threat
- 1.Qg3+?
- 1...Kc4
- 2.Qb3#
- 1...e3!
- 1...Kc4
- 1.Qf4?
- 1...Kc4
- 2.Qxe4#
- 1...c4
- 2.Qd2#
- 1...e3!
- 1...Kc4
- 1.Qd6+?
- 1...Ke3
- 2.Qg3#
- 1...Kc4!
- 1...Ke3
- 1.Qg8?
- threat
- 2.Qb3#
- 1...Ke3
- 2.Qg3#
- 1...e3
- 2.Qd5#
- 1...c4!
- threat
- 1.Qh2?
- Keys
- 1.Qe5!
- threat
- 2.Qc3#
- 1...Ke3
- 2.Qg3#
- 1...Kc4
- 2.Qxe4#
- 1...e3
- 2.Qd5#
- threat
- 1.Qe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(a);P-FLIGHT::QAR2(D)
- Tries
- Try
- Q(D);
- Threat
- QAB1(D)
- Vars
- K(a);P-FLIGHT::QAR2(D)
- P(b);SBLOCK::QAB1(D)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(D);CHECK
- Vars
- K(a);OGATE,S_FLIGHT::QAB1(D)
- Refutation
- P(b);P_SPINP(b)
- Try
- Q(D);
- Vars
- K(a);P_SPINP(b),S_FLIGHT::QAR2(D),XP(b)
- P(c);SBLOCK::QAR1(D)
- Refutation
- P(b);
- Try
- Q(D);CHECK
- Vars
- K(a);P-FLIGHT::QAR2(D)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(D);
- Threat
- QAR2(D)
- Vars
- K(a);P-FLIGHT::QAR2(D)
- P(b);SBLOCK::QAR2(D)
- Refutation
- P(c);
- Try
- Actual
- Q(D);
- Threat
- QAR1(D)
- Vars
- K(a);P-FLIGHT,P_SPINP(b)::QAR2(D)
- K(a);S_FLIGHT::QAR2(D),XP(b)
- P(b);SBLOCK::QAR2(D)
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).