MESON Chess Problem Database
Problem Display
PID: 94588 (Q7/2kN4/P6K/2PR1Rp1/2p2p2/Nq4B1/8/8 w - - 0 1)
Kirillov, Valery Afanasievich
Magadanskaya Pravda, 1997
#2
9 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Sb5#
- 1...Qa2
- 2.Sb5#
- 1...Qc2
- 2.Sb5#
- 1...Qc3
- 2.Sb5#
- 1...Qd3
- 2.Sb5#
- 1...Qe3
- 2.Sb5#
- 1...Qf3
- 2.Sb5#
- 1...Qxg3
- 2.Sb5#
- 1...Qb5
- 2.Sxb5#
- 1...Qb6+
- 2.cxb6#
- 1...g4
- 2.Bxf4#
- 1...Qd1
- Tries
- 1.Se5?
- threat
- 2.Rd7#
- 2.Rf7#
- 2.Qd8#
- 1...Qb8
- 2.Qc6#
- 1...Qd1
- 2.Sb5#
- 2.Rf7#
- 2.Qb7#
- 2.Qd8#
- 1...Qa4
- 2.Qb7#
- 2.Qd8#
- 1...Qd3
- 2.Sb5#
- 2.Rf7#
- 2.Qb7#
- 2.Qd8#
- 1...Qb5
- 2.Sxb5#
- 2.Qd8#
- 1...Qb6+!
- threat
- 1.Sb6?
- threat
- 2.Rd7#
- 2.Rf7#
- 2.Qb7#
- 2.Qc8#
- 1...Qd1
- 2.Sb5#
- 2.Rf7#
- 2.Qb7#
- 2.Qc8#
- 1...Qa4
- 2.Qb7#
- 2.Qc8#
- 1...Qd3
- 2.Sb5#
- 2.Rf7#
- 2.Qb7#
- 2.Qc8#
- 1...Qe3
- 2.Sb5#
- 2.Rd7#
- 2.Qb7#
- 2.Qc8#
- 1...Qb5
- 2.Sxb5#
- 2.Qb7#
- 2.Qc8#
- 1...Qxb6+!
- threat
- 1.Sf6?
- threat
- 2.Se8#
- 2.Rd7#
- 1...Qb7
- 2.Qxb7#
- 1...Qd1
- 2.Sb5#
- 2.Se8#
- 2.Qb7#
- 1...Qa4
- 2.Qb7#
- 1...Qd3
- 2.Sb5#
- 2.Se8#
- 2.Qb7#
- 1...Qe3
- 2.Sb5#
- 2.Rd7#
- 2.Qb7#
- 1...Qb5
- 2.Sxb5#
- 1...Qb6
- 2.Rd7#
- 1...Qb8!
- threat
- 1.Rf6?
- threat
- 2.Rc6#
- 1...Qb8
- 2.Qxb8#
- 1...Qa4
- 2.Qb8#
- 1...Qb5
- 2.Sxb5#
- 1...Qb6
- 2.cxb6#
- 1...Qb7!
- threat
- 1.Rf7?
- threat
- 2.Se5#
- 2.Sb6#
- 2.Sf6#
- 2.Sf8#
- 1...Qb6+
- 2.Sxb6#
- 2.Sf6#
- 2.cxb6#
- 1...Qb7
- 2.Se5#
- 1...Qb8
- 2.Sb6#
- 1...Qe3
- 2.Sb5#
- 2.Se5#
- 1...Qb5
- 2.Sxb5#
- 1...Qa4!
- threat
- 1.Rf8?
- threat
- 2.Rc8#
- 2.Qc8#
- 1...Qb6+
- 2.cxb6#
- 1...Qb7
- 2.Qxb7#
- 1...Qb8!
- threat
- 1.Qb7+?
- 1...Kd8
- 2.Sf6#
- 1...Qxb7!
- 1...Kd8
- 1.Qb8+?
- 1...Kc6
- 2.Rd6#
- 2.Qd6#
- 2.Qc8#
- 1...Qxb8!
- 1...Kc6
- 1.Qd8+?
- 1...Kc6
- 2.Se5#
- 2.Rd6#
- 2.Qc8#
- 1...Kxd8!
- 1...Kc6
- 1.Se5?
- Keys
- 1.Rxf4!
- threat
- 2.Rf3#
- 1...Qb6+
- 2.cxb6#
- 1...Qxg3
- 2.Sb5#
- 1...gxf4
- 2.Bxf4#
- 1...Qb7
- 2.Rf6#
- 1...Qb8
- 2.Rf8#
- 1...Qb2
- 2.Rfd4#
- 1...Qc3
- 2.Sb5#
- 1...Qe3
- 2.Sb5#
- 1...Qf3
- 2.Sb5#
- 2.Rxf3#
- threat
- 1.Rxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
- Sets
- Q(a);N_GUARD::S(A)
- Q(a);N_GUARD,N_SPINP(c),XB(B)::S(A)
- Q(a);N_GUARD::S(A),XQ(a)
- Q(a);CHECK,OGATE::P(C),XQ(a)
- P(d);N_GUARD::B(B),XP(c)
- Tries
- Try
- S(H);N_PINP(c)
- Threat
- DUALS(3)
- Vars
- Q(a);SBLOCK::QAR1(I)
- Refutation
- Q(a);CHECK
- Try
- S(H);
- Threat
- DUALS(4)
- Refutation
- Q(a);CHECK,XS(H)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- Q(a);N_GUARD::QAR1(I),XQ(a)
- Q(a);N_GUARD::QAR1(I)
- Q(a);N_GUARD::S(A),XQ(a)
- Q(a);P_PINS(H)::R1(D)
- Refutation
- Q(a);
- Try
- R(E);
- Threat
- R1(E)
- Vars
- Q(a);N_GUARD::QAB1(I),XQ(a)
- Q(a);N_GUARD::QAB1(I)
- Q(a);N_GUARD::S(A),XQ(a)
- Q(a);OGATE,P_PINR(E)::P(C),XQ(a)
- Refutation
- Q(a);
- Try
- R(E);
- Threat
- DUALS(4)
- Vars
- Q(a);::R(E)+S(H)
- Q(a);N_GUARD::S(A),XQ(a)
- Refutation
- Q(a);
- Try
- R(E);
- Threat
- DUALS(2)
- Vars
- Q(a);CHECK,OGATE::P(C),XQ(a)
- Q(a);N_GUARD::QAR1(I),XQ(a)
- Refutation
- Q(a);
- Try
- Q(I);CHECK
- Vars
- K(e);N_SPINP(c),S_FLIGHT::R(D)+S(H)
- Refutation
- Q(a);XQ(I)
- Try
- Q(I);CHECK
- Refutation
- Q(a);XQ(I)
- Try
- Q(I);CHECK
- Refutation
- K(e);N_SPINP(c),S_FLIGHT,XQ(I)
- Try
- Actual
- R(E);XP(c)
- Threat
- B(B)+R(E)
- Vars
- Q(a);CHECK,OGATE::P(C),XQ(a)
- Q(a);N_GUARD,XB(B)::S(A)
- P(d);OGATE,P_SPINP(d),XR(E)::B(B),XP(d)
- Q(a);N_GUARD::B(B)+R(E)
- Q(a);N_GUARD::S(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).