MESON Chess Problem Database
Problem Display
PID: 247931 (1b5Q/8/8/8/6p1/8/4R2B/3K3k w - - 0 1)
Lincoln, Robert A
Uralski Problemist, 2006
#2
4 + 3
SOLUTION
- SOUND
- Sets
- 1...Bxh2
- 2.Qxh2#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...Bxh2
- Tries
- 1.Kd2?
- threat
- 2.Qa1#
- 1...Bxh2
- 2.Qxh2#
- 1...Bg3
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bf4+!
- threat
- 1.Bg1+?
- 1...Bh2
- 2.Qxh2#
- 1...Kxg1!
- 1...Bh2
- 1.Ra2?
- 1...Bxh2
- 2.Qxh2#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...g3!
- 1...Bxh2
- 1.Rb2?
- 1...Bxh2
- 2.Qxh2#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...g3!
- 1...Bxh2
- 1.Rc2?
- 1...Bxh2
- 2.Qxh2#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...g3!
- 1...Bxh2
- 1.Rd2?
- 1...Bxh2
- 2.Qxh2#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...g3!
- 1...Bxh2
- 1.Rf2?
- 1...Bxh2
- 2.Qxh2#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Bd6
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bc7
- 2.Qa8#
- 1...g3!
- 1...Bxh2
- 1.Qb2?
- threat
- 2.Re1#
- 2.Qb7#
- 1...g3
- 2.Re1#
- 1...Bg3
- 2.Qb7#
- 1...Ba7
- 2.Qb7#
- 1...Bxh2!
- threat
- 1.Qc3?
- threat
- 2.Qe1#
- 2.Qc6#
- 1...g3
- 2.Qe1#
- 1...Bg3
- 2.Qc6#
- 1...Ba7
- 2.Qc6#
- 1...Bxh2!
- threat
- 1.Qd4?
- threat
- 2.Qg1#
- 2.Qe4#
- 2.Qd5#
- 1...g3
- 2.Qg1#
- 1...Ba7
- 2.Qe4#
- 2.Qd5#
- 1...Bxh2!
- threat
- 1.Qf6?
- threat
- 2.Qf1#
- 2.Qc6#
- 1...g3
- 2.Qf1#
- 1...Bf4
- 2.Qc6#
- 1...Bd6
- 2.Qf1#
- 1...Ba7
- 2.Qc6#
- 1...Bxh2!
- threat
- 1.Qh3?
- threat
- 2.Re1#
- 2.Qf1#
- 2.Qg2#
- 1...Bxh2
- 2.Re1#
- 2.Qg2#
- 2.Qxh2#
- 1...Bg3
- 2.Qf1#
- 2.Qg2#
- 1...Ba7
- 2.Qg2#
- 1...gxh3!
- threat
- 1.Qh7?
- threat
- 2.Qe4#
- 2.Qb7#
- 1...Bxh2
- 2.Qxh2#
- 1...Bc7
- 2.Qe4#
- 1...g3!
- threat
- 1.Qf8?
- threat
- 2.Qf1#
- 1...Bf4
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- 1...Bxh2!
- threat
- 1.Kd2?
- Keys
- 1.Kc2!
- threat
- 2.Qa1#
- 1...Bxh2
- 2.Qxh2#
- 1...Bg3
- 2.Qa8#
- 1...Bf4
- 2.Qa8#
- 1...Be5
- 2.Qa8#
- 1...Ba7
- 2.Qa8#
- threat
- 1.Kc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- B(c);OGATE,P_SPINB(c),XB(C)::QAR1(D),XB(c)
- B(c);OGATE::QAB(D)
- Tries
- Try
- K(A);P-FLIGHT
- Threat
- QAB1(D)
- Vars
- B(c);OGATE,P_SPINB(c),XB(C)::QAR1(D),XB(c)
- B(c);OGATE::QAB(D)
- Refutation
- B(c);CHECK
- Try
- B(C);CHECK
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAR1(D),XB(c)
- Refutation
- K(a);P-FLIGHT,XB(C)
- Try
- R(B);
- Vars
- B(c);OGATE,P_SPINB(c),XB(C)::QAR1(D),XB(c)
- B(c);OGATE::QAB(D)
- Refutation
- P(b);
- Try
- R(B);
- Vars
- B(c);OGATE,P_SPINB(c),XB(C)::QAR1(D),XB(c)
- B(c);OGATE::QAB(D)
- Refutation
- P(b);
- Try
- R(B);
- Vars
- B(c);OGATE,P_SPINB(c),XB(C)::QAR1(D),XB(c)
- B(c);OGATE::QAB(D)
- Refutation
- P(b);
- Try
- R(B);
- Vars
- B(c);OGATE,P_SPINB(c),XB(C)::QAR1(D),XB(c)
- B(c);OGATE::QAB(D)
- Refutation
- P(b);
- Try
- R(B);
- Vars
- B(c);OGATE,P_SPINB(c),XB(C)::QAR1(D),XB(c)
- B(c);OGATE::QAB(D)
- Refutation
- P(b);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(b);::R(B)
- B(c);::QAB(D)
- Refutation
- B(c);XB(C)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(b);::QAR(D)
- B(c);::QAB(D)
- Refutation
- B(c);XB(C)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- P(b);::QAR1(D)
- Refutation
- B(c);XB(C)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- P(b);::QAR2(D)
- B(c);::QAB(D)
- B(c);::QAR2(D)
- Refutation
- B(c);XB(C)
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- B(c);::QAB1(D)
- Refutation
- P(b);XQ(D)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- B(c);OGATE,P_SPINB(c),XB(C)::QAR1(D),XB(c)
- B(c);::QAB(D)
- Refutation
- P(b);
- Try
- Q(D);
- Threat
- QAR2(D)
- Vars
- B(c);OGATE::QAB(D)
- Refutation
- B(c);XB(C)
- Try
- Actual
- K(A);S_FLIGHT
- Threat
- QAB1(D)
- Vars
- B(c);OGATE,P_SPINB(c),XB(C)::QAR1(D),XB(c)
- B(c);OGATE::QAB(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).