MESON Chess Problem Database
Problem Display
PID: 134102 (8/8/8/3K4/8/4pk2/Q3p2B/6R1 w - - 0 1)
Lincoln, Robert A
The Problemist Supplement, 2009
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...e1Q
- 2.Qg2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Qg2#
- 1...e1Q
- Tries
- 1.Kd4?
- threat
- 2.Qf7#
- 1...Kf2
- 2.Qf7#
- 1...e1Q
- 2.Qg2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Qg2#
- 1...e1S!
- threat
- 1.Kc5?
- 1...Kf2
- 2.Qf7#
- 1...Ke4
- 2.Qd5#
- 1...e1Q
- 2.Qg2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Qg2#
- 1...e1S!
- 1...Kf2
- 1.Kc6?
- 1...Kf2
- 2.Qf7#
- 1...Ke4
- 2.Qd5#
- 1...e1Q
- 2.Qg2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Qg2#
- 1...e1S!
- 1...Kf2
- 1.Kd6?
- 1...Kf2
- 2.Qf7#
- 1...Ke4
- 2.Qd5#
- 1...e1Q
- 2.Qg2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Qg2#
- 1...e1S!
- 1...Kf2
- 1.Be5?
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rg3#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rg3#
- 2.Qg2#
- 1...Kf2!
- 1...e1Q
- 1.Bd6?
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rg3#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rg3#
- 2.Qg2#
- 1...Kf2!
- 1...e1Q
- 1.Bc7?
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rg3#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rg3#
- 2.Qg2#
- 1...Kf2!
- 1...e1Q
- 1.Bb8?
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rg3#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rg3#
- 2.Qg2#
- 1...Kf2!
- 1...e1Q
- 1.Qb2?
- threat
- 2.Qf6#
- 1...Kf2
- 2.Qf6#
- 1...e1Q
- 2.Qg2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Qg2#
- 1...e1S!
- threat
- 1.Qc2?
- threat
- 2.Qf5#
- 1...Kf2
- 2.Qf5#
- 1...e1Q
- 2.Qg2#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Qg2#
- 1...e1S!
- threat
- 1.Kd4?
- Keys
- 1.Ke5!
- threat
- 2.Qf7#
- 1...Kf2
- 2.Qf7#
- 1...e1Q
- 2.Qg2#
- 1...e1S
- 2.Rg3#
- 1...e1B
- 2.Qg2#
- 1...e1R
- 2.Rg3#
- 2.Qg2#
- threat
- 1.Ke5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- P(a);OGATE::QAB1(B)
- Tries
- Try
- K(D);P-FLIGHT
- Threat
- QAR(B)
- Vars
- K(c);P-FLIGHT,P_SPINP(a)::QAR(B)
- P(a);OGATE::QAB1(B)
- Refutation
- P(a);
- Try
- K(D);P-FLIGHT
- Vars
- K(c);P-FLIGHT,P_SPINP(a)::QAR(B)
- K(c);S_FLIGHT::QAB1(B)
- P(a);OGATE::QAB1(B)
- Refutation
- P(a);
- Try
- K(D);S_FLIGHT
- Vars
- K(c);P-FLIGHT,P_SPINP(a)::QAR(B)
- K(c);S_FLIGHT::QAB1(B)
- P(a);OGATE::QAB1(B)
- Refutation
- P(a);
- Try
- K(D);P-FLIGHT
- Vars
- K(c);P-FLIGHT,P_SPINP(a)::QAR(B)
- K(c);S_FLIGHT::QAB1(B)
- P(a);OGATE::QAB1(B)
- Refutation
- P(a);
- Try
- B(C);
- Vars
- P(a);OGATE::QAB1(B)
- P(a);::R1(A)
- Refutation
- K(c);P-FLIGHT,P_SPINP(a)
- Try
- B(C);
- Vars
- P(a);OGATE::QAB1(B)
- P(a);::R1(A)
- Refutation
- K(c);P-FLIGHT,P_SPINP(a)
- Try
- B(C);
- Vars
- P(a);OGATE::QAB1(B)
- P(a);::R1(A)
- Refutation
- K(c);P-FLIGHT,P_SPINP(a)
- Try
- B(C);
- Vars
- P(a);OGATE::QAB1(B)
- P(a);::R1(A)
- Refutation
- K(c);P-FLIGHT,P_SPINP(a)
- Try
- Q(B);
- Threat
- QAR(B)
- Vars
- K(c);P-FLIGHT,P_SPINP(a)::QAR(B)
- P(a);OGATE::QAB1(B)
- Refutation
- P(a);
- Try
- Q(B);
- Threat
- QAR2(B)
- Vars
- K(c);P-FLIGHT,P_SPINP(a)::QAR(B)
- P(a);OGATE::QAB1(B)
- Refutation
- P(a);
- Try
- Actual
- K(D);P-FLIGHT
- Threat
- QAR(B)
- Vars
- K(c);P-FLIGHT,P_SPINP(a)::QAR(B)
- P(a);OGATE::QAB1(B)
- P(a);::R1(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).